Summary of nanomaterial-based antimicrobials targeting Gram-positive bacteria.
| S/N | Citation | Country | Nanomaterial type used | Nanomaterials class | Pathogen (s) targeted | Study type | Key findings | Mechanism of action | Advantages over conventional agents | Limitations | Translational stage/clinical phase |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | [20] | China | Quercetin (Qu) and acetylcholine (Ach) to the surface of Se nanoparticles (Qu–Ach@SeNPs) | Metal-based | Staphylococcus (S.) aureus | Experimental | Efficient antibacterial and bactericidal activities against superbugs without resistance | Combined with theacetylcholine receptor on the bacterial cell membrane and increase the permeability of the cell membrane | Efficient antibacterial activity against MDR superbugs | - | Preclinical (unspecified) |
| 2 | [21] | Pakistan | Ciprofloxacin-loaded gold nanoparticles (CIP-AuNPs) | Metal-based | Enterococcus (E.) faecalis JH2-2 | Experimental | Promising, biocompatible therapy for drug-resistant E. faecalis infections warrants further study | Disrupts membrane potential, inhibits ATPase, and blocks ribosome–tRNA binding, impairing bacterial metabolism | Exerted enhanced antibacterial activity compared with free CIP | Required further studies on its effects in animal models, which may aggregate and unload due to high salt concentrations | In vivo (animal model) |
| 3 | [22] | India | Copper oxide nanoparticles (CuO NPs) | Metal oxide-based | S. aureus | Experimental | Strong antifungal and antibacterial activity | Effective against Gram-positive bacteria | Low-cost and possesses a high surface area | - | Preclinical (unspecified) |
| 4 | [23] | India | Platinum nanoparticles (Pt NPs) | Metal-based | Bacillus (B.) cereus | Experimental | Shows dose-dependent antibacterial activity | Denature critical bacterial enzyme thiol groups | Synthesized using eco-friendly biological methods | In vitro only; in vivo efficacy and toxicity not assessed | In vivo (animal model) |
| 5 | [24] | Australia | Selenium nanoparticles (SeNPs) | Metal-based | MRSA, E. faecalis | Experimental | Strong antibacterial effect against eight species, including drug-resistant strains | ATP depletion, reactive oxygen species (ROS) generation, membrane depolarization, and membrane disruption | Unlike the conventional antibiotic, kanamycin’s NP-ε-PL did not readily induce resistance | Further work is required to investigate use in a real clinical setting | Clinical |
| 6 | [25] | South Korea | Magnetic core-shell nanoparticles (MCSNPs) | Metal-oxide-based | MRSA | Experimental | Radiofrequency (RF) current kills trapped bacteria in 30 minutes by disrupting the membrane potential and complexes | RF stimulation of MCSNP-bound bacteria disrupts the membrane potential and complexes | - | Study performed in vitro; further in vivo validation is necessary | In vivo (animal model) |
| 7 | [26] | India | Silver nanoparticles (AgNPs) | Metal-based | S. aureus | Experimental | < 50 nm AgNPs act against drug-resistant bacteria | - | - | - | Preclinical (unspecified) |
| 8 | [27] | China | Nanoparticles functionalized with oligo(thiophene ethynylene (OTE) and hyaluronic acid (HA) (OTE-HA nanoparticles) | Polymeric | MRSA | Experimental | Bacterial hyaluronidase hydrolyzes OTE-HA NPs, releasing OTE fragments to kill bacteria | OTE fragments disrupt bacterial membranes by hydrophobic interactions and van der Waals forces | OTE-HA NPs prevent premature drug leakage and show superior biocompatibility | Potential cytotoxicity of OTE-based agents is a major concern. | Preclinical (unspecified) |
| 9 | [28] | India | Biogenic copper nanoparticles (CuNPs) and zinc oxide nanoparticles (ZnONPs) | Metal-and metal-oxide-based | S. aureus, including MRSA | Experimental | Exhibit strong low-dose antibiofilm activity and boost antibiotic efficacy | Nanoparticles interact closely with microbial membranes due to their small size | Synergistic enhancement with antibiotics | - | Preclinical (unspecified) |
| 10 | [29] | India | AgNPs | Metal-based | B. subtilis, S. haemolyticus, and S. epidermidis | Experimental | AgNPs block bacterial growth and biofilms below the antibiotic minimum inhibitory concentration (MIC), with minimal cytotoxicity to mammalian cells | Mislocalizes FtsZ/FtsA, damages membranes, and blocks cell division | Reduced cytotoxicity towards mammalian cells | Limited Ag+ release and hydrogel shielding reduce AgNP effectiveness | Preclinical (unspecified) |
| 11 | [30] | Spain | Mesoporous silica nanoparticles (MSNs) | Inorganic-based | S. aureus | Experimental | MSNEPL-Cin demonstrated excellent antimicrobial activity at very low doses | Microbial proteases trigger cinnamaldehyde release from MSNs for localized antimicrobial action | Enhanced antimicrobial efficacy via biocontrolled uncapping for targeted delivery | Raw data cannot be shared due to technical limitations | In vivo (animal model) |
| 12 | [31] | China | Curcumin-stabilized silver nanoparticles (C-Ag NPs) | Metal-based/biologically derived | S. aureus and MRSA | Experimental | Polyvinyl alcohol (PVA)/citric acids (CA)/C-Ag nanofibers show sustained broad-spectrum activity, remove biofilms, and suppress MRSA resistance genes | Antimicrobial action via ROS and membrane damage; disrupts MRSA carbohydrate and energy metabolism | - | - | Preclinical (unspecified) |
| 13 | [32] | India | AgNPs | Metal-based | S. aureus (tetracycline-resistant) | Experimental | Strong antibacterial at 100 µg/mL, plus antioxidant and anti-HeLa/MCF-7 activity | Interrupt genes involved in the cell cycle | Enhanced antibacterial properties compared to conventional agents | - | Preclinical (unspecified) |
| 14 | [33] | China | Single-walled carbon nanotubes (SWCNTs) decorated with AgNPs coated with mesoporous silica via TSD mediation (SWCNTs@mSiO2-TSD@Ag) | Carbon/Metal-based | S. aureus | Experimental | Significantly enhanced antibacterial activity against S. aureus, with MICs below commercial AgNPs | Damages bacterial cell membranes and accelerates Ag+ release, boosting antibacterial activity | Outperformed commercial AgNPs and SWCNTs@mSiO2-TSD, enhancing bacterial clearance and wound healing in vivo | Grafting Ag NPs onto CNTs requires complicated procedures, risking structural damage | Preclinical (unspecified) |
| 15 | [34] | China | AuNPs modified with 5-methyl-2-mercaptobenzimidazole (mMB-AuNPs) | Metal-based/organic-functionalized | MRSA | Experimental | Neutral MMB-AuNPs destroyed MRSA, unlike charged AMB- and CMB-AuNPs | Induce bacterial cell membrane damage, disrupt membrane potential, and downregulate ATP levels, leading to bacterial death | - | - | Preclinical (unspecified) |
| 16 | [35] | Jordan | Silver, magnetite nanoparticles (Fe3O4/AgNPs), and magnetite/silver core-shell (Fe3O4/Ag) nanoparticles | Metal/Metal oxide-based | S. aureus | Experimental | Fe3O4/Ag NPs exhibited superior antibacterial activity compared to Fe3O4 or Ag NPs, strongly inhibiting pathogens | - | - | - | Preclinical (unspecified) |
| 17 | [36] | USA | Polydopamine nanoparticles (PD-NPs) | Polymer-based | MRSA | Experimental | Composite nanoparticles fully eradicated MRSA and removed toxic heavy metals from water | Membrane captures pathogens; ε-poly-L-lysine kills bacteria. Metal is removed by active binding sites | Surface area for enhanced reactivity and effective capture of heavy metals and superbugs | - | Preclinical (unspecified) |
| 18 | [37] | China | Mixed-charge hyperbranched polymer nanoparticles (MCHPNs) | Polymer-based | S. aureus (ATCC 6538), MRSA | Experimental | Highly selective (SI > 564), eradicates resistant bacteria, delays resistance, and blocks biofilms | Charge-targeted membrane disruption alters permeability, causing bacterial death | Offers greater bacterial selectivity and lower mammalian toxicity than other cationic materials | - | Preclinical (unspecified) |
| 19 | [38] | - | Silver, copper oxide, and titanium dioxide nanoparticles (AgNPs, CuO NPs, and TiO2 NPs) | Metal/Metal oxide-based | S. aureus, MRSA | Experimental | Silver nanoparticle coatings achieved > 99% bacterial growth inhibition within 24 h | Nanoparticles disrupt bacterial cell membranes and produce ROS | The nanoparticles overcome biofilm barriers that conventional antibiotics struggle with | Needs further studies on long-term safety, biocompatibility, and large-scale trials; clinical data are lacking | Clinical |
| 20 | [39] | India | AgNPs | Metal-based | Bacillus licheniformis | Experimental | AgNP-treated cotton fabrics showed wash-durable antimicrobial activity with 93.3% inhibition | Induces higher ROS production inside bacterial cells | Offer improved wash durability compared to conventional agents | Limited exploration of AgNPs resistance in various bacterial strains | In vivo (animal model) |
| 21 | [40] | China | AuNPs | Metal-based | MRSA | Experimental | Showed strong antibacterial effects and enhanced wound healing against MDR bacteria | Disrupts bacterial membrane structure and cytoplasmic leakage | - | - | Preclinical (unspecified) |
| 22 | [41] | China | AgNPs | Metal-based | S. aureus | Experimental | Showed strong bactericidal effects on MDR bacteria; biofilm formation was inhibited in a dose-dependent manner | Effectively hinders biofilm formation, with inhibition rising at higher AgNP concentrations | Significant bactericidal effect on a variety of drug-resistant bacteria | No regulation on AgNP morphology, size, surface, or antibacterial properties | Preclinical (unspecified) |
| 23 | [42] | India | AgNPs stabilized with poloxamer (AgNPs@Pol) | Biologically derived | MRSA and methicillin-susceptible S. aureus (MSSA) | Experimental | Synergistic effect with methicillin was observed. ROS increased, and antimicrobial resistance (AMR)-related genes were downregulated | Induction of ROS and downregulation of AMR and adhesion genes | Significant 100% efficacy against MRSA and MSSA, reduction in colony-forming units (CFU) | Further primary cells and in vivo models are required for validation | In vivo (animal model) |
| 24 | [43] | India | Palladium nanoparticles (PdNPs) | Metal-based | S. aureus | Experimental | Showed MICs of 52–68 µg/mL against MDR S. aureus | - | PdNPs can be effective in the clinical management of MDR pathogens | - | Preclinical (unspecified) |
| 25 | [44] | UAE | Cinnamic acid-coated magnetic iron oxide and mesoporous silica nanoparticles | Metal-based/biologically derived | MRSA, B. cereus | Experimental | Greatly enhanced destruction of MDR bacteria over drugs alone, with minimal cytotoxicity | - | Completely eradicated MRSA at much lower doses than antibiotics alone | Further in vivo and clinical studies are needed for validation | Clinical |
| 26 | [45] | Saudi Arabia | AgNPs | Metal-based | S. aureus and S. epidermidis | Experimental | Exhibited strong antibacterial activity with an MIC of 9.375 μg/mL against MDR strains | Ag+ ions bind thiols, disrupt membranes, cause oxidative damage, and kill bacterial cells | Metal nanoparticles (m-NPs) bypass resistance mechanisms in bacteria | - | Preclinical (unspecified) |
| 27 | [46] | Nigeria | AgNPs | Metal-based | S. aureus | Experimental | Exhibited antibacterial at 25 µg/mL; MIC 25–50 µg/mL, minimum bactericidal concentration (MBC) 75–100 µg/mL | - | - | Need more studies on environmental effects, antibacterial mechanisms, and AgNP–antibiotic synergy | In vivo (animal model) |
| 28 | [47] | Mexico | AgNPs | Metal-based | S. aureus ATCC 25923 | Experimental | Seasonal sample from winter (SPw)-AgNPs showed potent antibacterial/antibiofilm activity (MBC 25–100 µg/mL), driven by quercetin/galangin, and were non-cytotoxic to HeLa and ARPE-19 cells | - | Reduced cytotoxicity due to biosynthesis; effective at low concentrations compared to previous reports using chemically synthesized AgNPs | Future work should test strains with defined virulence and resistance to evaluate clinical relevance | Clinical |
| 29 | [48] | China | LL-37@MIL-101-Van (MIL-101 nanoparticles loaded with LL-37 peptide and Vancomycin) | Biologically derived | MRSA | Experimental | Showed strong antibacterial effects, enhanced wound healing, enabled near infrared (NIR) imaging, and synergistically killed MRSA via •OH, LL-37, and vancomycin | MIL-101 (Fe3+) drives Fenton-like •OH production from H2O2 in acidic sites; LL-37 disrupts membranes, vancomycin blocks cell wall synthesis | - | - | Preclinical (unspecified) |
| 30 | [49] | India | Ag–Cu NPs | Metal-based | S. aureus and MRSA | Experimental | Effective at MIC 156.3–312.5 µg/mL. Inhibited growth rapidly, reusable, and eco-friendly synthesis | Membrane damage and ROS overproduction leading to lipid oxidation | Reusability, rapid action (30 min), green synthesis from agro-waste, stability for repeated use | - | Preclinical (unspecified) |
| 31 | [50] | Iran | Silver chloride nanoparticles (AgCl NPs) | Metal-based | S. aureus and B. subtilis | Experimental | Showed strong antibacterial activity against drug-resistant strains and cytotoxicity to MCF-7 and HepG2; MIC 12.5–50 µg/mL | Disrupts bacterial membranes and binds to proteins and DNA; Ag+ inhibits replication and inactivates proteins; ROS contributes to cytotoxicity | The nanoparticles exhibit higher antioxidant activity than conventional agents | - | Preclinical (unspecified) |
| 32 | [51] | Nigeria | Chitosan nanoparticles | Polymeric | S. aureus (haemolytic and clinical strains) and S. saprophyticus | Experimental | 39 mm inhibition zone against S. saprophyticus; MIC: 0.0781–0.3125 mg/mL | Increases bacterial membrane permeability and binds DNA, blocking mRNA synthesis | More effective than levofloxacin against S. saprophyticus; comparable efficacy for other tested strains | - | Preclinical (unspecified) |
| 33 | [52] | China | ROS-responsive, bacteria-targeted moxifloxacin nanoparticle for moxifloxacin delivery (MXF@UiO-UBI-PEGTK) | Biologically derived | S. aureus, and MRSA | Experimental | ROS-responsive moxifloxacin (MXF) release improved biofilm penetration in vitro and treated endophthalmitis in vivo | ROS-cleavable poly (ethylene glycol)-thioketal (PEG-TK) triggers MXF release in high ROS; UBI29–41 targets bacteria/biofilms; MXF blocks DNA gyrase and topoisomerase | Outperformed free moxifloxacin in biofilm penetration, ROS-responsive targeted delivery, and in vivo infection resolution with reduced inflammation | - | In vivo (animal model) |
| 34 | [53] | India | Silver oxide (Ag2O) nanoparticles | Metal-oxide-based | MRSA | Experimental | Demonstrated potent antibacterial activity against MRSA, with a 17.6 ± 0.5 mm inhibition zone | Ag2O nanoparticle production may be enzyme-mediated | Ag2O nanoparticles are freely dispersed, enhancing their effectiveness | - | In vivo (animal model) |
| 35 | [54] | Egypt | AgNPs | Metal-based | S. aureus | Experimental | Showed strong activity vs. MDR bacteria (MIC 31–250 µg/mL, MBC 125–500 µg/mL) | Disruption of bacterial cell membrane structure, leakage of intracellular contents | AgNPs (S4) showed superior antibacterial activity compared to AgNO3 and ginger extract alone | - | Preclinical (unspecified) |
| 36 | [55] | India | Iron oxide nanoparticles (FeONPs) | Metal-oxide-based | S. aureus | Experimental | Strong antibacterial/antifungal activity; rapid synthesis verified by UV-Vis, XRD, SEM, TEM | Act through direct contact with bacterial cell walls | Enhance membrane permeability and cell destruction | - | Preclinical (unspecified) |
| 37 | [56] | India | AgNPs | Metal-based | S. aureus | Experimental | Produced 27 mm and 32 mm zones vs. MDR S. aureus | Disrupts the outer membrane, binds thiols, impairs replication, and generates ROS, causing damage and enzyme inhibition | AgNPs showed 27 mm (S. aureus), far exceeding antibiotics (≤ 5 mm) | - | Preclinical (unspecified) |
| 38 | [57] | Malaysia | AgNPs | Metal-based | MRSA | Experimental | - | Phyto-AgNPs are antibacterial, and with antibiotics, greatly increase MRSA inhibition zones | AgNP-antibiotic combinations showed significantly larger inhibition zones compared to antibiotics or AgNPs alone | The precise mechanism of action for nanoparticles remains unclear | Preclinical (unspecified) |
| 39 | [58] | Lithuania | Nisin-loaded iron oxide magnetic nanoparticles (IONPs) | Metal oxide/biologically derived | B. subtilis ATCC 6633 | Experimental | Nisin-magnetic nanoparticles combined with pulsed electric field (PEF)/pulsed electromagnetic field (PEMF) boost antimicrobial action and resistance synergistically | Nisin resistance mechanisms were identified in Gram-positive bacteria | Nanomaterials enhance the stability and activity of antimicrobial agents | Mechanism not fully understood and requires further investigation | Preclinical (unspecified) |
| 40 | [59] | Ethiopia | Copper oxide nanoparticles (CONPs) | Metal-oxide-based | S. aureus | Experimental | Active against Gram-positive diabetic foot isolates, with S. aureus showing the largest zone (16 mm) | CONPs adhere to bacterial surfaces and penetrate cells, destroying bacterial biomolecules and structures | CONPs possess strong antioxidant potential compared to conventional agents | Still needs some modifications on CONPs concerning ascorbic acid activity | Preclinical (unspecified) |
| 41 | [60] | Iran | AgNPs | Metal-based | S. aureus | Experimental | Strong activity MIC ≈ 0.1 µg/mL for S. aureus and degraded pollutants photocatalytically | Membrane penetration/disruption, thiol binding, DNA replication inhibition, and ROS generation | AgNPs@SI had lower MICs than ciprofloxacin for some strains and were eco-friendly synthesized without toxic chemicals | - | Preclinical (unspecified) |
| 42 | [61] | Egypt | AgNPs | Metal-based | Streptococcus agalactiae | Experimental | Showed antimicrobial activity against MDR mastitis pathogens | AgNPs act by disrupting microbial membranes, causing rupture and content leakage | Effective against MDR pathogens with lower cytotoxicity and an alternative to antibiotics in mastitis treatment | No in vivo studies support the clinical use of these compounds | Clinical |
| 43 | [62] | Iran | Chitosan-based nanofibrous mats embedded with silver, copper oxide, and zinc oxide nanoparticles (CS-nACZ) | Metal oxide-polymeric based | S. aureus | Experimental | Strong antimicrobial action, healed wounds in vivo, and were non-toxic to fibroblasts | - | Active against MDR bacteria (unlike single NPs), promoted healing, and was non-cytotoxic | - | In vivo (animal model) |
| 44 | [63] | Lithuania | Methionine-capped ultra-small gold (Au@Met) nanoparticles and methionine-stabilized magnetite-gold (Fe3O4@Au@Met) nanoparticles | Metal/biologically derived | MRSA, Micrococcus luteus | Experimental | Showed 89.1–75.7% against Gram-positive bacteria at 70 mg/L concentration | The presence of Au+ ions causes interaction with bacterial membranes and metabolic imbalance | High biocompatibility, non-toxicity, effective at low concentration, and activity against MDR pathogens | - | In vivo (animal model) |
| 45 | [64] | Iran | Chitosan NPs and TiO2 NPs | Polymer/Metal-based | Streptococcus mutans | Experimental | Experimental group showed marked Streptococcus mutans reduction at 1 day, 2 months, and 6 months, highest in the upper second premolars at 6 months | - | - | - | Preclinical (unspecified) |
| 46 | [65] | Brazil | Tea tree oil and low molecular weight chitosan (TTO-CH) nanoparticles | Biologically derived polymeric-based | Streptococcus sanguinis | Experimental | TTO-CH showed strong antimicrobial activity and had synergistic effects, matching azithromycin against mono- and mixed biofilms | Attributed to terpinen-4-ol and terpinene in TTO, the mechanism involves membrane disruption and metabolic interference | TTO-CH combination matched azithromycin in activity against oral biofilms and offers a natural alternative to antibiotics | Further studies are required to confirm efficacy in vivo and explore potential clinical applications | Clinical |
| 47 | [66] | India | AgNPs | Metal-based | S. aureus | Experimental | Exhibited up to 92.41% inhibition of S. aureus biofilms; anti-adhesion and biofilm disruption effects | Disrupt bacterial cell membranes, generate ROS, and interfere with cellular functions to inhibit biofilm formation | Exhibit stronger biofilm inhibition and penetration against antibiotics; plant-based eco-synthesis improves biocompatibility | - | Preclinical (unspecified) |
| 48 | [67] | China | Epigallocatechin gallate-gold nanoparticles (E–Au NPs) | Metal/Biologically derived | MRSA and S. aureus | Experimental | NIR-triggered, achieved > 90% MRSA biofilm destruction, strong antibacterial/antibiofilm effects, and promoted wound/keratitis healing with high biocompatibility | Combines mild photothermal therapy (PTT), ROS, quinoprotein formation, gene downregulation, and cell wall disruption | Highly biocompatible with minimal side effects; synergistic photothermal–polyphenol action boosts efficacy against MDR MRSA; suitable for eye and skin infections | - | In vivo (animal model) |
| 49 | [68] | China | Nano-Germanium dioxide (GeO2)/cetyltrimethylammonium bromide (CTAB) complex (nano-GeO2/CTAB complex) | Biologically derived | S. aureus | Experimental | Nano-GeO2/CTAB complex showed stronger Gram+ antibacterial activity than the individual components | - | - | More research is needed on long-term efficacy and environmental safety before use | Preclinical (unspecified) |
| 50 | [69] | Iran | α-Fe2O3 nanoparticles (α-Fe2O3-NPs) | Metal oxide/biologically derived | S. aureus and B. cereus | Experimental | Exhibited significant antibacterial activity with MIC values between 0.625–5 µg/mL and MBC values between 5–20 µg/mL | ROS generation causes membrane damage and cell death, with minimal metal ion release, distinguishing them from other metal NPs | - | Requires further clinical trials and safety evaluations before medical application | Clinical |
| 51 | [70] | India | Erythromycin-loaded PLGA nanoparticles (PLGA-Ery NPs) | Polymer-based | S. aureus | Experimental | Enhanced antibacterial activity (1.5–2.1× MIC) against S. aureus, biofilm inhibition | Provided sustained drug release, better cell penetration, disrupted cell walls, and lowered efflux activity | Improved efficacy against resistant strains, biofilm inhibition, sustained drug release, and reduced toxicity | - | Preclinical (unspecified) |
| 52 | [71] | Iran | PEG-coated UIO-66-NH2 nanoparticles loaded with vancomycin and amikacin (VAN/AMK-UIO-66-NH2@PEG) | Biologically derived | Vancomycin-resistant S. aureus (VRSA) | Experimental | Stronger antibacterial/antibiofilm effects downregulated mecA, vanA, icaA, icaD; showed potent antioxidant activity | Inhibits biofilm and MDR gene expression (mecA, vanA, icaA, icaD); PEGylation enhances drug retention and delivery | Lower MIC/MBC than free VAN/AMK or VAN/AMK-UIO-66; sustained release, better stability, encapsulation, and bioavailability | Future in vivo studies are needed to assess safety, efficacy, and clinical use of these nanoparticles | Clinical |
| 53 | [72] | Nigeria | AgNPs, AuNPs, and bimetallic gold-silver nanoparticles | Metal-based | S. aureus (ATCC 25923) | Experimental | Showed strong antibacterial activity against S. aureus, with a MIC of 1.953 μg/mL | Metal ions are liberated into the cells by oxidation and produce ROS that attack the bacterial cells and cause cell death | Offer a potential indigenous alternative to combat antibiotic resistance | - | Preclinical (unspecified) |
| 54 | [73] | China | Copper-doped hollow mesoporous cerium oxide (Cu-HMCe) nanozyme | Biologically derived | S. aureus | Experimental | Exhibited strong antibacterial properties against S. aureus | HMCe reduces bacterial viability via oxidative stress and disrupted nutrient transport | Shows promise for treating acidified chronic refractory wounds with infections | Further research is needed on its biosafety and vascularization mechanism | Preclinical (unspecified) |
| 55 | [74] | China | Bacteria-activated macrophage membrane coated ROS-responsive vancomycin nanoparticles (Sa-MM@Van-NPs) | Biologically derived | MRSA | Experimental | Efficiently targeted infected sites and released vancomycin to eliminate bacteria, facilitating faster wound healing | Targets infections via receptor interactions and releases antibiotics in high ROS to kill bacteria | ROS-responsive release of antibiotics improves antibacterial efficacy | - | Preclinical (unspecified) |
| 56 | [75] | Iraq | AgNPs | Biologically derived | S. sciuri and S. lentus | Experimental | Strong Gram+ activity by disrupting membranes and causing nucleic acid/protein leakage | Damaged bacterial membranes cause DNA, RNA, and protein leakage | - | Studies are needed to clarify mechanisms and assess in vivo safety | In vivo (animal model) |
| 57 | [76] | China | Polypeptide-based carbon nanoparticles | Carbon-based | S. aureus, and MRSA | Experimental | Achieved 99%+ inhibition of S. aureus and ~99% healing in MRSA wound infections | Nanozyme’s peroxidase, oxidase, catalase, and glutathione peroxidase (GPx)-like activities regulate ROS for bacterial inhibition | Showed high inhibition against Gram-positive S. aureus planktonic bacteria | - | Preclinical (unspecified) |
| 58 | [77] | Egypt | Vancomycin functionalized silver nanoparticles (Ag-VanNPs) | Metal/Biologically derived | MRSA | Experimental | Lowered MIC/MBC with fractional inhibitory concentration/ fractional bactericidal concentration (FIC/FBC) ≤ 0.5, indicating synergistic action and fewer side effects | - | Synergistic action, better targeting, and much lower MIC/MBC than pure vancomycin | - | Preclinical (unspecified) |
| 59 | [78] | India | CuNPs | Metal | S. aureus | Experimental | CuNPs showed broad antimicrobial activity, with the strongest effect against Staphylococcus aureus (27 ± 1.00 mm). | - | Outperformed vancomycin with synergistic action, lower MIC/MBC, and better targeting | - | Preclinical (unspecified) |
| 60 | [79] | India | Sarsaparilla root extract fabricated silver nanoparticles (sAgNPs) | Metal/Biologically derived | S. aureus and MRSA | Experimental | Showed MICs 125 μM S. aureus, MRSA, and protected zebrafish from infection | At 1× MIC, sAgNPs generate excess ROS and disrupt membranes, causing depolarization | Potential to act as nanocatalysts and nano-drugs in addressing key challenges in medical and environmental research | - | Preclinical (unspecified) |
| 61 | [80] | Pakistan | ZnO NPs and aluminum-doped ZnO NPs (Zn1−xAlxO NCs) | Biologically derived | S. aureus | Experimental | Possess largest inhibition zones (notably vs. B. cereus), with strong antimicrobial effects, low toxicity, and high biocompatibility | Zn2+ and ROS damage membranes/DNA, inhibit enzymes, and block biofilm formation | Al-doping increases antimicrobial activity through enhanced ROS generation | - | Preclinical (unspecified) |
| 62 | [81] | Iran | Chitosan, ZnO, and ZnO–Urtica. diocia (ZnO–U. diocia) NPs | Polymer and metal-oxide-based | S. aureus | Experimental | The zone of inhibition for was greater for aqueous leaf extract against S. aureus | Interact with microbial membranes, results in structural damage, protein denaturation, and generation of ROS leading to cell death | Showed enhanced antimicrobial efficacy over crude extracts and were environmentally friendly | - | Preclinical (unspecified) |
| 63 | [82] | Italy | Surface active maghemite nanoparticles (SAMN), colloidal iron oxide NPs with oxyhydroxide-like surface | Biologically derived | Listeria spp. | Experimental | Captured 100% of bacteria in wastewater without agitation and bound stably, non-toxically to polysaccharides and cells | Bind peptidoglycan and polysaccharides via chelation and electrostatic interactions | Non-toxic, reusable, and highly stable, and enables physical removal of Gram (+) bacteria as an alternative to antibiotics | - | Preclinical (unspecified) |
| 64 | [83] | China | Nickel oxide nanoparticles (NiOx NPs) | Metal oxide | MRSA | Experimental | Eradicated MRSA and biofilms in vitro and in vivo and promoted wound healing, collagen deposition, and tissue regeneration in animal models | Oxygen vacancies boost ROS and photothermal effects; NiOx mimics oxidase/peroxidase to generate •OH and damage membranes, DNA, and proteins | Non-antibiotic dual-action strategy; effective against drug-resistant biofilms with high biosafety, biocompatibility, and regenerative properties | The long-term effects of NiOx NPs were not addressed. | In vivo (animal model) |
| 65 | [84] | Nigeria | Green-synthesized AgNPs using Vitex grandifolia leaves extract | Biologically derived | Streptococcus pyogenes and S. aureus | Experimental | Significant antibacterial activity against MDR pathogens; inhibition zones up to 15 mm at 100 µg/mL; concentration-dependent response | Ag+ release disrupts membranes, inactivates enzymes, generates ROS, and blocks DNA/protein synthesis | - | Further research is needed to confirm safety and biocompatibility | Preclinical (unspecified) |
| 66 | [85] | Thailand | Ag/AgCl-NPs | Metal/Metal oxide based | S. haemolyticus | Experimental | MIC/MBC 7.8–15.6 µg/mL; reduced biofilm biomass ~95% and viability ~78%; caused visible cell damage | ROS-driven membrane damage, morphological changes, and reduced viability in the biofilm strain | The synthesized Ag/AgCl-NPs show an enhanced antibacterial and antibiofilm agent against S. haemolyticus | - | Preclinical (unspecified) |
| 67 | [86] | India | ZnO NPs | Metal oxide | S. aureus and Streptococcus pyogenes | Experimental | Inhibited bacterial growth and biofilms in a dose-dependent manner, confirmed by SEM and CFU reduction | Antibacterial and antibiofilm effects stem from membrane disruption and ROS-induced stress | Antibiotic-loaded ZnO NPs showed stronger antibacterial activity than Li-ZnO NPs or ciprofloxacin alone | - | Preclinical (unspecified) |
| 68 | [87] | Iraq | AgNPs | Metal-based | MDR bacteria (not specified) | Experimental | AgNPs showed significant dose-dependent antibacterial activity | - | AgNPs exhibited antibacterial activity against MDR bacteria compared to conventional agents | Nanotoxicology studies are needed to find doses balancing antibacterial efficacy and low human toxicity | In vivo (animal model) |
| 69 | [88] | Saudi Arabia | Nickel ferrite nanoparticles (NiFe2O4 NPs) | Metal-oxide-based | MRSA | Experimental | MIC 1.6–2 mg/mL, reduced biofilm formation ~50%, eradicated mature biofilms 50–76% | Membrane disruption and structural damage, blocked biofilm adherence with visible membrane deformation | NiFe2O4 NPs not only prevent the formation of biofilm, but also eliminate existing mature biofilms by 50.5–75.79% | - | Preclinical (unspecified) |
| 70 | [89] | Portugal | Photo-crosslinked chitosan/methacrylated hyaluronic acid nanoparticles (HAMA/CS NPs) | Polymer-based | S. aureus, MRSA, and S. epidermidis | Experimental | Showed strong antibacterial/antibiofilm effects and boosted mammalian cell growth | Inhibit growth via contact, cut biofilms, and improve delivery/diffusion for antibacterial action at 37°C | Strong antibacterial/anti-biofilm effects in wounds, supports cell growth, is non-cytotoxic, and enables targeted antibiotic delivery | - | Preclinical (unspecified) |
| 71 | [90] | Germany | PLGA-based NPs | Polymer-based | MRSA | Experimental | The efficacy against MSSA and MRSA strains was demonstrated in vitro in several bacteria strains and in vivo in the G. mellonella model | SV7-loaded nanoparticles target intracellular MRSA infections effectively | SV7-loaded nanoparticles show a safe profile at all tested concentrations | Further in vivo mouse studies are needed to optimize post-infection regimens in complex environment | In vivo (animal model) |
| 72 | [91] | Egypt | ZnO NPs | Metal oxide | S. aureus | Experimental | Showed inhibitory percentages ranging from 12.0% to 39.1%, with extract ranging from 28.0% to 52.2% | GyrB inhibition stops bacterial DNA replication, leading to bacterial death | Zinc nanoparticles exhibit potential antibacterial and anticancer properties | - | Preclinical (unspecified) |
| 73 | [92] | India | In situ aqueous nanosuspension of PPEF.3HCl (IsPPEF.3HCl-NS) | Biologically derived | MRSA | Experimental | Inhibited bacterial growth, showing promise against intracellular MRSA | Blocks DNA rejoining and disrupts enzymatic processes as a poison inhibitor | IsPPEF.3HCl-NS enhanced log CFU reduction in S. aureus-induced murine sepsis model | - | Preclinical (unspecified) |
| 74 | [93] | Romania | AgNPs | Metal-based | S. aureus (ATCC 29213), MRSA, E. faecalis (ATCC 29212) | Experimental | Exhibit strong antibacterial effects by damaging bacterial cell membranes and generating oxidative stress | Ag+ ions disrupt membranes, trigger ROS and oxidative stress, block ATP synthesis, alter gene expression, and inhibit respiration | Nanomaterials offer enhanced antibacterial efficacy against MDR bacteria | More in vivo studies are needed for satisfactory results | Preclinical (unspecified) |
| 75 | [94] | China | Silver- and zinc-doped silica nanoparticles synthesized using the sol-gel [Ag/Zn–SiO2 NPs (sol-gel)] | Metal/Biologically derived | S. aureus, E. faecalis | Experimental | Demonstrated antibacterial and antifungal properties against all the tested strains | Released Ag+, Cu2+, and Zn2+ ions damage bacterial membranes and inhibit growth | Ag- and Zn-doped silica NPs were found effective against periodontitis microbe | - | In vivo (animal model) |
| 76 | [95] | China | DMY-AgNPs (silver nanoparticles synthesized using dihydromyricetin) | Metal/Biologically derived | MRSA | Experimental | Showed the highest antibacterial activity with inhibition zones of 1.92 mm (S. aureus) and 1.75 mm (MRSA) | - | The antibacterial efficacy of DMY-AgNPs surpassed that of other green-synthesized AgNPs | High AgNPs concentrations impacted zebrafish embryo development | In vivo (animal model) |
| 77 | [96] | Pakistan | Levofloxacin loaded chitosan and poly-lactic-co-glycolic acid nano-particles (LVX-CS-III PLGA-I NPs) | Polymer-based | S. aureus | Experimental | Better antibacterial potency against gram+ve bacteria | CS-NPs enhance antibiotic delivery and pharmacokinetic profiles | Improved antibiotic sensitivity without compromising patient safety; enhanced zone of inhibition compared to free LVX | Conflicting reports exist on mass ratios affecting nanoparticle characteristics | Preclinical (unspecified) |
| 78 | [97] | Pakistan | AgNPs | Metal-based | S. aureus | Experimental | AgNPs exhibited significant antibacterial and antifungal activities | - | Aqueous extract of AgNPs provides a safer alternative to conventional antibacterial agents | - | Preclinical (unspecified) |
| 79 | [98] | India | AgNP-antibiotic combinations (SACs) synthesized using Streptococcus pneumoniae ATCC 49619 | Metal-based | Enterococcus faecium, S. aureus | Experimental | SACs synergized with antibiotics, cutting required doses up to 32× and showing growth inhibition and bactericidal effects | AgNPs in SACs boost local Ag+ release, forming membrane pores, causing leakage, and killing bacteria | Up to 32-fold enhanced antibacterial activity, effective against biofilms, non-cytotoxic to normal cells | - | Preclinical (unspecified) |
| 80 | [99] | China | Epigallocatechin gallate-ferric (EGCG-Fe) complex nanoparticles | Biologically derived | S. aureus | Experimental | Uses photothermal conversion to enhance antibacterial effects on S. aureus, prevent/destroy biofilms, and aid wound healing in vivo | Photothermal effect disrupts bacterial membranes and enhances antibacterial performance upon NIR laser irradiation | Shows photothermal enhanced antibacterial and wound healing effects compared to conventional agents | - | In vivo (animal model) |
| 81 | [100] | Argentina | AgNPs | Metal-based | S. aureus | Experimental | AgNPs with a diameter of around 11 nm exhibited high antibacterial activity against both tested bacteria | The AgNPs increased intracellular ROS levels in both bacteria and caused membrane damage | AgNPs showed high antibacterial activity against S. aureus | - | Preclinical (unspecified) |
| 82 | [101] | Saudi Arabia | AuNPs | Metal-based | S. aureus | Experimental | Strong antimicrobial activity, especially at 20 µg/vol; inhibited Gram-positive bacteria | Nilavembu choornam-gold nanoparticles (NC-GNPs) disrupt bacterial membrane integrity, leading to cell death | NC-GNPs enhance drug efficacy and combat antibiotic resistance | Variations in drug delivery rates limit therapeutic efficacy | In vivo (animal model) |
| 83 | [102] | Indonesia | AuNPs | Metal-based | S. aureus and MRSA | Experimental | Showed antibacterial activity; higher metal ion levels increased efficiency | Damaged bacterial cell walls, disrupted metabolism, and ROS generation | - | - | Preclinical (unspecified) |
| 84 | [103] | Bangladesh | Green synthesized chitosan nanoparticles (ChiNPs) | Biologically derived | S. aureus strains | Experimental | Reduced zones of inhibition against methicillin-resistant (mecA) and penicillin-resistant (blaZ) S. aureus | Positively charged nanomaterials interact with negatively charged bacterial cell walls through electrostatic interaction | - | The antiviral as well as antifungal activity of the yielded nanoparticles needs to be verified before field application | Preclinical (unspecified) |
| 85 | [104] | New Zealand | AuNPs | Metal-based | S. aureus (MRSA ATCC 33593) | Experimental | Showed strong antimicrobial activity (0.13–1.25 μM), inhibited 90% of initial biofilms, and reduced 80% of preformed biofilms | - | The conjugates were stable in rat serum and not toxic to representative mammalian cell lines in vitro (≤ 64 μM) and in vivo (≤ 100 μM) | - | Preclinical (unspecified) |
| 86 | [105] | Iraq | AgNPs | Metal-based | Streptococcus mitis | Experimental | Synergistic effect in the inhibition when combining AgNPs with some antibiotics | - | Clear synergistic effect in the inhibition of Streptococcus mitis | - | Preclinical (unspecified) |
| 87 | [106] | Egypt | Streptomycin (Str) and Moringa oleifera leaf extract (MOLe)-loaded ZnONPs (Str/MOLe@ZnONPs) | Biologically derived | E. faecalis | Experimental | Strongly inhibited E. faecalis growth and biofilm formation | Enhance delivery by bacterial binding, blocking efflux pumps, and disrupting membranes | Nanoparticles enhance antibiotic binding to bacteria, improving efficacy | - | Preclinical (unspecified) |
| 88 | [107] | China | Phenylboronic acid-functionalized BSA@CuS@PpIX (BSA@CuS@PpIX@PBA; BCPP) nanoparticles | Biologically derived | S. aureus | Experimental | BCPP exhibited good bacteria-targeting properties for both S. aureus | Produces ROS, amplifying Str’s bactericidal action | BCPP shows good hemocompatibility and low cytotoxicity compared to conventional agents | Photodynamic therapy (PDT) is restricted by poor photosensitizer solubility and a short half-life | Preclinical (unspecified) |
| 89 | [108] | Egypt | TiO2, magnesium oxide (MgO), calcium oxide (CaO), and ZnO nanoparticles | Metal/Metal oxide-based | S. aureus | Experimental | Showed significant antibacterial effects, particularly MgO- and ZnO-hydrogel types | Generated free radicals and ROS that damage membranes, proteins, and DNA, causing bacterial death | Embedding nanoparticles in hydrogels prevents aggregation and boosts antibacterial synergy | - | Preclinical (unspecified) |
| 90 | [109] | Egypt | Myricetin-coated zinc oxide/polyvinyl alcohol nanocomposites (MYR-loaded ZnO/PVA NCs) | Biologically derived | Clostridium (C.) perfringens | Experimental | C. perfringens isolates were most sensitive to MYR-loaded ZnO/PVA, with MICs of 0.125–2 μg/mL | MYR inhibits α-hemolysin-induced cell damage without inhibiting bacterial growth | Nanomaterials exhibit enhanced antimicrobial activity compared to conventional agents | In vivo studies are needed for validation | In vivo (animal model) |
| 91 | [110] | Egypt | Ciprofloxacin hydrochloride (CIP) encapsulated in PLGA nanoparticles coated with chitosan (CIP-CS-PLGA-NPs) | Polymer-based | E. faecalis | Experimental | Enabled controlled release, boosted antibacterial/antibiofilm effects, and improved healing | - | Exhibited greater antibacterial and anti-biofilm activity than free ciprofloxacin and calcium hydroxide | There is a need to link current findings to short- and long-term periapical healing | Preclinical (unspecified) |
| 92 | [111] | Iran | Silver nanoparticles and propolis (AgNPs@propolis) | Biologically derived | S. aureus and E. faecalis | Experimental | Possesses a low toxic effect on the cell and has a high effect in inhibiting the growth of various bacteria | Membrane damage, energy transfer disruption, ROS generation, and toxic element release | Green synthesis reduces toxic effects compared to conventional methods | - | Preclinical (unspecified) |
| 93 | [112] | Czech Republic | TiO2 NPs | Metal-oxide-based | S. aureus | Experimental | Offer a promising alternative to antibiotics, particularly for controlling MDR | Disrupts cell wall integrity, leading to cell death | TiO2 NPs exhibit enhanced antimicrobial properties against resistant strains | More studies are required to explore full applications and possible hazards | Preclinical (unspecified) |
| 94 | [113] | Algeria | Silver carbonate nanoparticles (BioAg2CO3NPs) | Biologically derived | S. aureus | Experimental | Displayed good antibacterial and antibiofilm activity | Protein inactivation, production of ROS, and formation of free radicals | Pathogens fail to develop resistance to BioAg2CO3NPs, unlike conventional antimicrobials | - | Preclinical (unspecified) |
| 95 | [114] | Turkey | Biogenic AgNPs | Biologically derived | S. aureus | Experimental | Showed antibacterial activity against S. aureus | - | The synergistic effects increased antibacterial effectiveness | - | Preclinical (unspecified) |
| 96 | [115] | USA | PVP- or PEG-coated Ga2(HPO4)3 nanoparticles | Biologically derived | S. aureus | Experimental | Exhibit potent antimicrobial activity that is comparable to Ga(NO3)3 | - | Showed no bacterial resistance after 30 days, unlike Ga(NO3)3 and ciprofloxacin | Ineffective against Gram-positive S. aureus even at high concentrations | In vivo (animal model) |
| 97 | [116] | Ethiopia | Silver and cobalt oxide nanoparticles (Ag/Co3O4 NPs) | Metal-metal oxide-based | S. aureus and E. faecalis | Experimental | Showed promising antibacterial activities, with Ag NPs exhibiting the best inhibition | Disintegration of bacterial cell membranes results in pathogen death | High specific surface area of the nanoparticles enhances antibacterial performance | - | Preclinical (unspecified) |
| 98 | [117] | Saudi Arabia | Saponin-derived AgNPs (AgNPs-S) | Biologically derived | MTCC-121 (B. subtilis), MTCC-439 (E. faecalis), and MTCC-96 (S. aureus) | Experimental | Exhibited potent antibacterial activity against both Gram-positive and Gram-negative bacteria | Damaged bacterial membranes, causing DNA, RNA, and protein leakage | - | Further investigations to elucidate the possible mechanism involved and safety concerns | Preclinical (unspecified) |
| 99 | [118] | USA | AgNPs | Metal-based | S. aureus | Experimental | Kenaf-based activated carbon (KAC)-chitosan (CS)-AgNPs exhibited a strong bactericidal effect with an MIC of 43.6 µg/mL for S. aureus | Disruption of bacterial cell walls, generation of ROS, interaction with sulfur and phosphorus of DNA, and cell death | Environmentally friendly synthesis method compared to conventional agents | - | Preclinical (unspecified) |
| 100 | [119] | United Arab Emirates | CuO, ZnO, and tungsten trioxide (WO3) nanoparticles | Metal-oxide-based | S. aureus and MRSA | Experimental | Exhibited significant antimicrobial effects under dark incubation, while photoactivated WO3 NPs reduced viable cells by 75% | Lipid peroxidation due to ROS generation and cell membrane disruption, as shown by MDA production and live/dead staining | Nanomaterials exhibit > 90% antimicrobial activity at low concentrations | Varying results based on the NPs size | Preclinical (unspecified) |
| 101 | [120] | Spain | AuNPs | Metal-based | S. aureus | Experimental | The antibiotic as an enhancer of amoxicillin was demonstrated, causing the precursors and the NPs to act quickly, and favor microbial death with a small amount of antibiotic | Internalization into bacteria, damage to the bacterial surface, production of ROS, and disruption of biosynthetic machinery led to microbial death | Acts quickly, favoring microbial death with a small antibiotic, thereby combating resistance and avoiding side effects derived from high doses | Further investigations to identify possible long-term adverse effects | In vivo (animal model) |
| 102 | [121] | Spain | Silver, gold, zinc, and copper nanoparticles (Ag, Au, Zn, and Cu NPs) | Metal-based | Enterococcus spp. | Experimental | Effectively inhibit planktonic cells and biofilm formation at low concentrations, affects preformed biofilms, and destabilizes their structure | - | Represent a good alternative to avoid the spread of MDR bacteria and minimize the selective pressure by systemic antibiotics or disinfectants | Further studies are required to confirm the compatibility and cytotoxicity of the most successful combinations | In vivo (animal model) |
| 103 | [122] | Egypt | Liposomal nanoparticles (LNPs) | Lipid-based | MRSA | Experimental | Combination therapies (AuNPs/AgNPs) and traditional antibiotics, provided enhanced antimicrobial efficacy and inhibited biofilm formation | - | This combination may overcome resistance and restore sensitivity in MDR bacteria | Further investigations are necessary to establish the safety and cytotoxicity profiles of these nanocomplexes | Preclinical (unspecified) |
| 104 | [123] | Egypt | ZnONPs | Metal-oxide-based | Enterococcus spp. and MRSA | Experimental | Exhibited a synergistic antibacterial effect, showing enhanced inhibition compared to individual NPs | Based on the generation of ROS, leading to lipid peroxidation and membrane damage | Offers a non-toxic, non-invasive, and cost-effective alternative to conventional antimicrobials | Further in vivo investigations are required to validate the safety and efficacy | In vivo (animal model) |
| 105 | [124] | Australia | (Rif)-loaded MSN and organo-modified (ethylene-bridged) MSN (MON) | Inorganic based | S. aureus | Experimental | The combined effects reduced the CFU of intracellular SCV-SA 28 times and 65 times compared to MSN-Rif and non-encapsulated Rif, respectively | Increased uptake of MON is five-fold compared to MSN | MON reduced CFU of intracellular SCV-SA significantly compared to MSN-Rif | Further in vivo validation would be required | In vivo (animal model) |
| 106 | [125] | Spain | Silica MSNs | Inorganic-based | S. aureus and E. faecalis | Experimental | Displayed antibacterial activity against S. aureus with Ag-containing materials, showing the highest effectiveness | Bacterial death, including interactions with the outer and inner membranes, and alterations in the cytoplasmic membrane | Act as carriers of antibiotics, increasing their ability to penetrate the biofilm bacteria often developed to conventional antibiotics | Further in vivo studies will be necessary to validate their biomedical application | In vivo (animal model) |
| 107 | [126] | Romania | ZnO NPs | Metal-oxide-based | S. aureus | Experimental | The hydrogels containing 4% and 5% ZnO NPs, respectively, showed good antimicrobial activity | Direct contact of ZnO NP with the cell wall results in the bacterial cell’s integrity destruction and the release of antimicrobial ions (Zn2+ ions) | - | The biocomposites present some degree of toxicity towards HSF normal cells, depending on the quantity | Preclinical (unspecified) |
| 108 | [127] | USA | AgNPs | Metal-based | MRSA | Experimental | Promising clinical application as a potential stand-alone therapy or antibiotic adjuvant | - | Synergy with clinically relevant antibiotics reduced the MIC of aminoglycosides by approximately 22-fold | Exhibits cytotoxicity, which could limit its application as a broad oral antimicrobial | Clinical |
| 109 | [128] | India | ZnO NPs | Metal-oxide-based | B. cereus | Experimental | Exhibited high antibiofilm activity against B. cereus with minimum biofilm inhibitory concentration (MBIC) of ZnO NPs at 46.8 µg/mL. Exhibited high antibiofilm activity against B. cereus with MBIC of ZnO NPs at 46.8 µg/mL and 93.7 µg/mL | ZnO NPs target the cell membrane-induced ROS generation as a bactericidal mechanism | ZnO NPs reduced the bacterial cell viability and eradicate the biofilms | - | Preclinical (unspecified) |
| 110 | [129] | Saudi Arabia | AgNPs | Metal-based | S. aureus | Experimental | Enhanced antibacterial activity by increasing inhibition zones and reducing MIC values compared to lincomycin or AgNPs alone | The ROS, along with free radicals, damaged the bacterial cell wall and also inhibited the respiratory enzymes | Enhanced antibacterial efficacy compared to lincomycin alone, reducing MIC and increasing inhibition zone diameters | Lincomycin has restricted Gram-positive antibacterial activity and is developing resistance | Preclinical (unspecified) |
| 111 | [130] | Iran | Ag Np conjugated to chitosan (Ag Np and Chitosan Np | Inorganic metal-based | MRSA | Experimental | Ag Np-chitosan exhibits great antibacterial and anti-biofilm effects against CRAB and MRSA isolates | - | Ag Np-chitosan conjugation, an ideal alternative for ineffective antibiotics | - | Preclinical (unspecified) |
| 112 | [131] | Saudi Arabia | CNPs | Polymer-based | Streptococcus pneumoniae | Experimental | Enhanced antibacterial activity compared to C3-005 alone | C3-005 reduces ATP generation in Streptococcus pneumoniae | Precise mechanism of haemolysis reduction by CNPs has not been determined | - | Preclinical (unspecified) |
| 113 | [132] | Saudi Arabia | AgNPs | Metal-based | MRSA | Experimental | Exhibited high antimicrobial activity and a synergistic effect with penicillin against MRSA strains | AgNPs enhance antibiotic efficiency through synergistic effects with penicillin | AgNPs exhibited high antimicrobial activity and a synergistic effect with penicillin against MRSA strains | Phenotype from healthcare-associated (HA)-MRSA lacks plasmid DNA, limiting resistance understanding | Preclinical (unspecified) |
| 114 | [133] | China | AgNPs | Metal-based | Streptococcus suis | Experimental | Significantly inhibited the growth of MDR Streptococcus suis, disrupted bacterial morphology and cell walls, and destroyed biofilm structures | ROS overproduction inhibited peptidoglycan biosynthesis, downregulated bacterial division proteins, and interfered with quorum sensing | AgNPs are effective against MDR bacteria, unlike conventional antibiotics | Insufficient antioxidant enzyme expression to eliminate excessive ROS effectively | Preclinical (unspecified) |
| 115 | [134] | South Korea | C2-coated ZnONPs (C2-ZnONPs) | Inorganic based | S. aureus | Experimental | C2-ZnONPs inhibited biofilm and virulence of S. aureus | Lam-AuNPs disrupt mature biofilm structures in a dose-dependent manner | Lam-AuNPs effectively control biofilm and virulence in pathogens | The need to unravel the molecular mechanism of biofilm and virulence attenuation | Preclinical (unspecified) |
| 116 | [135] | USA | Ag NPs | Metal based | S. aureus | Experimental | Ag NPs do not exhibit cytotoxicity up to 50 µg/mL in each solution | - | Ag NPs/methylene blue (MB) were shown to be more effective than MB and Ag NPs alone | To evaluate its effectiveness against pathogens that cause prosthetic joint infection | Preclinical (unspecified) |
| 117 | [136] | China | Ti3C2Tx MXene loaded with indocyanine green nanoparticles (ICG@Ti3C2Tx MXene NPs) | Biologically derived | Streptococcus mutans | Experimental | ICG-MXene under NIR irradiation killed MRSA; no antibacterial effect without NIR | Combination of the photothermal effect of MXene and the photodynamic effect of ICG | ICG-MXene has a great synergistic PTT/PDT effect against MRSA | - | Preclinical (unspecified) |
| 118 | [137] | India | Zn and Mg substituted β-tricalcium phosphate/functionalized multiwalled carbon nanotube (f-MWCNT) nanocomposites | Metal based | MRSA | Experimental | The in-vitro cell viability and anti-biofilm results of zinc (5%) rich nanocomposite confirmed that prepared nanocomposite has biocompatible and enhanced anti-biofilm property, which will be beneficial candidate for biomedical applications | - | Nanocomposites have the ability to enhance the bioactivity of commercial antibiotics by means of a decrease in drug resistance | - | Preclinical (unspecified) |
| 119 | [138] | Jordan | Tryasine-AgNPs | Metal-based/biologically derived | MRSA | Experimental | More effective with MICs ranging from 30 to 100 µM, while at 100 µM caused only 1% haemolysis on human erythrocytes after 30 min of incubation | Tryasine enters the bacterial cell wall outer membrane, increasing its permeability, and the antibiotic impact of AgNPs | Strong activity against resistant bacteria while exhibiting low haemolytic activity and cytotoxicity | Potential toxicity not extensively evaluated beyond hemolytic assay | Preclinical (unspecified) |
| 120 | [139] | Iraq | AgNPs | Metal-based | S. aureus, S. epidermidis | Experimental | Broad-spectrum antibacterial activity. Synergistic effect with multiple antibiotics, increasing the inhibition fold area | Generation of ROS, disruption of the electron transport chain, decreased ATP levels, interference with the plasma membrane, and inhibition of DNA unwinding | Synergistic combination of AgNPs with conventional antibiotics enhances antibacterial efficacy against resistant strains | Further investigations (e.g., checkerboard assay, cytotoxicity, and blood compatibility studies) are required | Preclinical (unspecified) |
| 121 | [140] | Saudi Arabia | AgNPs | Metal-based | S. aureus, S. saprophyticus, S. sciuri, and S. epidermidis | Experimental | AgNPs (15–25 nm) were not effective against Gram-positive strains (MIC 256 μg/mL). | AgNPs mediate antimicrobial effects via the generation of ROS, direct interaction with and rupture of bacterial membranes | Enhances antimicrobial efficacy, reduces required antibiotic doses, and minimizes toxicity against AMR strains | To evaluate potential cytotoxicity and confirm in vivo effectiveness | In vivo (animal model) |
| 122 | [141] | Turkey | Ag–Pt nanoparticles | Metal based | S. aureus, B. subtilis, S. epidermidis | Experimental | Antimicrobial activity at 25, 50, and 100 µg/mL, with 100 µg/mL achieving low bacterial viability (22.58–29.67%) | Oxidative dissolution leads to the release of silver ions (Ag+), which initiates the antibacterial effect | Propolis in nanoparticle synthesis helps prevent industrial synthesis methods that consume more resources and induce side effects | - | Preclinical (unspecified) |
| 123 | [142] | Brazil | Biogenically synthesized silver nanoparticles using Fusarium oxysporum (BioAgNP) | Biologically derived | MRSA | Experimental | BioAgNP and thymol exhibited synergistic antibacterial activity, inhibited biofilm, and prevented the development of MDR | Membrane disruption, leakage of intracellular contents, oxidative stress (ROS, lipid peroxidation) | Combination prevented resistance development, faster antibacterial action, and reduced MIC values | Limited to specific bacterial strains tested in the study. | Preclinical (unspecified) |
| 124 | [143] | South Korea | Thymol-zinc oxide nanocomposite (ZnO NCs) | Metal oxide/biologically derived | Staphylococcus spp. | Experimental | Highly selective and bactericidal against S. epidermidis; MIC 2–32-fold lower than THO alone | Membrane rupture, suppression of biofilm, modulation of cell wall and protein synthesis pathways | Bioconjugation improves the efficacy of natural antibacterial compounds | Thymol has low antibacterial activity and non-selectivity | Preclinical (unspecified) |
| 125 | [144] | Saudi Arabia | Chitosan silver and gold nanoparticles (CS-Ag-Au NPs) | Metal/Polymer-based | B. subtilis and S. aureus | Experimental | Chitosan (Ch)-AgNPs showed strong antibacterial and antibiofilm activities; ch-AuNPs showed moderate to weak activity | Biofilm formation aids bacterial colonization on surfaces | Biogenic nanoparticles do not require rigorous conditions for synthesis like conventional agents | - | In vivo (animal model) |
| 126 | [145] | Mexico | AgNPs | Metal-based | S. aureus | Experimental | Increased susceptibility to antibiotics by 20% (without efflux effect) and 3% (with efflux effect). Decreased isolates with efflux effect by 17.5% | Decreases the portion of bacterial isolates exhibiting efflux activity, indirectly restoring antibiotic susceptibility | AgNPs can restore antibiotic activity and reduce treatment duration | - | Preclinical (unspecified) |
| 127 | [146] | India | AgNPs | Metal-based | S. aureus | Experimental | Best synergistic antibacterial activity against planktonic S. aureus despite lower drug release compared to AgNP-trisodium citrate (TSC)-tannic acid (TA) | AgNPs with mupirocin and antibiofilm agents enhance activity against S. aureus | Nanoparticles enhance antibiotic concentrations at infection sites | - | Preclinical (unspecified) |
| 128 | [147] | Jordan | Tobramycin-chitosan nanoparticles (TOB-CS NPs) coated with zinc oxide nanoparticles (ZnO NPs) | Biologically derived | S. aureus | Experimental | Enhanced antimicrobial activity against S. aureus compared to TOB-CS NPs or ZnO NPs alone | Generated oxidative stress and damage bacterial membranes; TOB inhibits protein synthesis | Nanoparticles can improve drug entrapment efficiency significantly | No MIC data for S. aureus ATCC 29215 was found | Preclinical (unspecified) |
| 129 | [148] | Saudi Arabia | Ceftriaxone-loaded gold nanoparticles (CGNPs) | Metal-based | S. aureus | Experimental | Showed MIC50 values 2× lower compared to pure ceftriaxone and enhanced antibacterial potency | CGNPs increase ceftriaxone concentration by attachment | CGNPs showed two times better antibacterial efficacy compared to pure ceftriaxone | In vivo studies on CGNPsʼ fate and toxicity are needed | Preclinical (unspecified) |
| 130 | [149] | Czech Republic | AgNPs | Metal-based | S. aureus | Experimental | TMPyP and AgNPs showed a synergistic antimicrobial effect, a promising alternative against MDR | Penetrate the bacterial cell and release Ag ions, which attack the respiratory chain, sulfur-containing proteins, and phosphorus-containing compounds such as DNA | Effective fight against MDR | lack of development in new molecules with antibacterial properties | Preclinical (unspecified) |
| 131 | [150] | Iran | Zinc sulfide (ZnS) nanoparticles | Metal-based | Streptococcus pyogenes | Experimental | Antibacterial effects dependent on concentration; 150 μg/mL had the highest antibacterial effect | - | Nanoparticles exhibit enhanced antibacterial effects compared to conventional agents | - | In vivo (animal model) |
-: No details. MDR: multidrug-resistant; MRSA: methicillin-resistant Staphylococcus aureus; XRD: X-ray diffraction patterns; SEM: scanning electron microscopy; TEM: transmission electron microscopy.