From:  Harnessing nanomaterials to overcome antimicrobial resistance in Gram-positive bacteria: a systematic review

 Summary of nanomaterial-based antimicrobials targeting Gram-positive bacteria.

S/NCitationCountryNanomaterial type usedNanomaterials classPathogen (s) targetedStudy typeKey findingsMechanism of actionAdvantages over conventional agentsLimitationsTranslational stage/clinical phase
1[20]ChinaQuercetin (Qu) and acetylcholine (Ach) to the surface of Se nanoparticles (Qu–Ach@SeNPs)Metal-basedStaphylococcus (S.) aureusExperimentalEfficient antibacterial and bactericidal activities against superbugs without resistanceCombined with the
acetylcholine receptor on the bacterial cell membrane and increase the permeability of the cell membrane
Efficient antibacterial activity against MDR superbugs-Preclinical (unspecified)
2[21]PakistanCiprofloxacin-loaded gold nanoparticles (CIP-AuNPs)Metal-basedEnterococcus (E.) faecalis JH2-2ExperimentalPromising, biocompatible therapy for drug-resistant E. faecalis infections warrants further studyDisrupts membrane potential, inhibits ATPase, and blocks ribosome–tRNA binding, impairing bacterial metabolismExerted enhanced antibacterial activity compared with free CIPRequired further studies on its effects in animal models, which may aggregate and unload due to high salt concentrationsIn vivo (animal model)
3[22]IndiaCopper oxide nanoparticles (CuO NPs)Metal oxide-basedS. aureusExperimentalStrong antifungal and antibacterial activityEffective against Gram-positive bacteriaLow-cost and possesses a high surface area-Preclinical (unspecified)
4[23]IndiaPlatinum nanoparticles (Pt NPs)Metal-basedBacillus (B.) cereusExperimentalShows dose-dependent antibacterial activityDenature critical bacterial enzyme thiol groupsSynthesized using eco-friendly biological methodsIn vitro only; in vivo efficacy and toxicity not assessedIn vivo (animal model)
5[24]AustraliaSelenium nanoparticles (SeNPs)Metal-basedMRSA, E. faecalisExperimentalStrong antibacterial effect against eight species, including drug-resistant strainsATP depletion, reactive oxygen species (ROS) generation, membrane depolarization, and membrane disruptionUnlike the conventional antibiotic, kanamycin’s NP-ε-PL did not readily induce resistanceFurther work is required to investigate use in a real clinical settingClinical
6[25]South KoreaMagnetic core-shell nanoparticles (MCSNPs)Metal-oxide-basedMRSAExperimentalRadiofrequency (RF) current kills trapped bacteria in 30 minutes by disrupting the membrane potential and complexesRF stimulation of MCSNP-bound bacteria disrupts the membrane potential and complexes-Study performed in vitro; further in vivo validation is necessaryIn vivo (animal model)
7[26]IndiaSilver nanoparticles (AgNPs)Metal-basedS. aureusExperimental< 50 nm AgNPs act against drug-resistant bacteria---Preclinical (unspecified)
8[27]ChinaNanoparticles functionalized with oligo(thiophene ethynylene (OTE) and hyaluronic acid (HA) (OTE-HA nanoparticles)PolymericMRSAExperimentalBacterial hyaluronidase hydrolyzes OTE-HA NPs, releasing OTE fragments to kill bacteriaOTE fragments disrupt bacterial membranes by hydrophobic interactions and van der Waals forcesOTE-HA NPs prevent premature drug leakage and show superior biocompatibilityPotential cytotoxicity of OTE-based agents is a major concern.Preclinical (unspecified)
9[28]IndiaBiogenic copper nanoparticles (CuNPs) and zinc oxide nanoparticles (ZnONPs)Metal-and metal-oxide-basedS. aureus, including MRSAExperimentalExhibit strong low-dose antibiofilm activity and boost antibiotic efficacyNanoparticles interact closely with microbial membranes due to their small sizeSynergistic enhancement with antibiotics-Preclinical (unspecified)
10[29]IndiaAgNPsMetal-basedB. subtilis, S. haemolyticus, and S. epidermidisExperimentalAgNPs block bacterial growth and biofilms below the antibiotic minimum inhibitory concentration (MIC), with minimal cytotoxicity to mammalian cellsMislocalizes FtsZ/FtsA, damages membranes, and blocks cell divisionReduced cytotoxicity towards mammalian cellsLimited Ag+ release and hydrogel shielding reduce AgNP effectivenessPreclinical (unspecified)
11[30]SpainMesoporous silica nanoparticles (MSNs)Inorganic-basedS. aureusExperimentalMSNEPL-Cin demonstrated excellent antimicrobial activity at very low dosesMicrobial proteases trigger cinnamaldehyde release from MSNs for localized antimicrobial actionEnhanced antimicrobial efficacy via biocontrolled uncapping for targeted deliveryRaw data cannot be shared due to technical limitationsIn vivo (animal model)
12[31]ChinaCurcumin-stabilized silver nanoparticles (C-Ag NPs)Metal-based/biologically derivedS. aureus and MRSAExperimentalPolyvinyl alcohol (PVA)/citric acids (CA)/C-Ag nanofibers show sustained broad-spectrum activity, remove biofilms, and suppress MRSA resistance genesAntimicrobial action via ROS and membrane damage; disrupts MRSA carbohydrate and energy metabolism--Preclinical (unspecified)
13[32]IndiaAgNPsMetal-basedS. aureus (tetracycline-resistant)ExperimentalStrong antibacterial at 100 µg/mL, plus antioxidant and anti-HeLa/MCF-7 activityInterrupt genes involved in the cell cycleEnhanced antibacterial properties compared to conventional agents-Preclinical (unspecified)
14[33]ChinaSingle-walled carbon nanotubes (SWCNTs) decorated with AgNPs coated with mesoporous silica via TSD mediation (SWCNTs@mSiO2-TSD@Ag)Carbon/Metal-basedS. aureusExperimentalSignificantly enhanced antibacterial activity against S. aureus, with MICs below commercial AgNPsDamages bacterial cell membranes and accelerates Ag+ release, boosting antibacterial activityOutperformed commercial AgNPs and SWCNTs@mSiO2-TSD, enhancing bacterial clearance and wound healing in vivoGrafting Ag NPs onto CNTs requires complicated procedures, risking structural damagePreclinical (unspecified)
15[34]ChinaAuNPs modified with 5-methyl-2-mercaptobenzimidazole (mMB-AuNPs)Metal-based/organic-functionalizedMRSAExperimentalNeutral MMB-AuNPs destroyed MRSA, unlike charged AMB- and CMB-AuNPsInduce bacterial cell membrane damage, disrupt membrane potential, and downregulate ATP levels, leading to bacterial death--Preclinical (unspecified)
16[35]JordanSilver, magnetite nanoparticles (Fe3O4/AgNPs), and magnetite/silver core-shell (Fe3O4/Ag) nanoparticlesMetal/Metal oxide-basedS. aureusExperimentalFe3O4/Ag NPs exhibited superior antibacterial activity compared to Fe3O4 or Ag NPs, strongly inhibiting pathogens---Preclinical (unspecified)
17[36]USAPolydopamine nanoparticles (PD-NPs)Polymer-basedMRSAExperimentalComposite nanoparticles fully eradicated MRSA and removed toxic heavy metals from waterMembrane captures pathogens; ε-poly-L-lysine kills bacteria. Metal is removed by active binding sitesSurface area for enhanced reactivity and effective capture of heavy metals and superbugs-Preclinical (unspecified)
18[37]ChinaMixed-charge hyperbranched polymer nanoparticles (MCHPNs)Polymer-basedS. aureus (ATCC 6538), MRSAExperimentalHighly selective (SI  >  564), eradicates resistant bacteria, delays resistance, and blocks biofilmsCharge-targeted membrane disruption alters permeability, causing bacterial deathOffers 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-basedS. aureus, MRSAExperimentalSilver nanoparticle coatings achieved > 99% bacterial growth inhibition within 24 hNanoparticles disrupt bacterial cell membranes and produce ROSThe nanoparticles overcome biofilm barriers that conventional antibiotics struggle withNeeds further studies on long-term safety, biocompatibility, and large-scale trials; clinical data are lackingClinical
20[39]IndiaAgNPsMetal-basedBacillus licheniformisExperimentalAgNP-treated cotton fabrics showed wash-durable antimicrobial activity with 93.3% inhibitionInduces higher ROS production inside bacterial cellsOffer improved wash durability compared to conventional agentsLimited exploration of AgNPs resistance in various bacterial strainsIn vivo (animal model)
21[40]ChinaAuNPsMetal-basedMRSAExperimentalShowed strong antibacterial effects and enhanced wound healing against MDR bacteriaDisrupts bacterial membrane structure and cytoplasmic leakage--Preclinical (unspecified)
22[41]ChinaAgNPsMetal-basedS. aureusExperimentalShowed strong bactericidal effects on MDR bacteria; biofilm formation was inhibited in a dose-dependent mannerEffectively hinders biofilm formation, with inhibition rising at higher AgNP concentrationsSignificant bactericidal effect on a variety of drug-resistant bacteriaNo regulation on AgNP morphology, size, surface, or antibacterial propertiesPreclinical (unspecified)
23[42]IndiaAgNPs stabilized with poloxamer (AgNPs@Pol)Biologically derivedMRSA and methicillin-susceptible S. aureus (MSSA)ExperimentalSynergistic effect with methicillin was observed. ROS increased, and antimicrobial resistance (AMR)-related genes were downregulatedInduction of ROS and downregulation of AMR and adhesion genesSignificant 100% efficacy against MRSA and MSSA, reduction in colony-forming units (CFU)Further primary cells and in vivo models are required for validationIn vivo (animal model)
24[43]IndiaPalladium nanoparticles (PdNPs)Metal-basedS. aureusExperimentalShowed 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]UAECinnamic acid-coated magnetic iron oxide and mesoporous silica nanoparticlesMetal-based/biologically derivedMRSA, B. cereusExperimentalGreatly enhanced destruction of MDR bacteria over drugs alone, with minimal cytotoxicity-Completely eradicated MRSA at much lower doses than antibiotics aloneFurther in vivo and clinical studies are needed for validationClinical
26[45]Saudi ArabiaAgNPsMetal-basedS. aureus and S. epidermidisExperimentalExhibited strong antibacterial activity with an MIC of 9.375 μg/mL against MDR strainsAg+ ions bind thiols, disrupt membranes, cause oxidative damage, and kill bacterial cellsMetal nanoparticles (m-NPs) bypass resistance mechanisms in bacteria-Preclinical (unspecified)
27[46]NigeriaAgNPsMetal-basedS. aureusExperimentalExhibited 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 synergyIn vivo (animal model)
28[47]MexicoAgNPsMetal-basedS. aureus ATCC 25923ExperimentalSeasonal 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 AgNPsFuture work should test strains with defined virulence and resistance to evaluate clinical relevanceClinical
29[48]ChinaLL-37@MIL-101-Van (MIL-101 nanoparticles loaded with LL-37 peptide and Vancomycin)Biologically derivedMRSAExperimentalShowed strong antibacterial effects, enhanced wound healing, enabled near infrared (NIR) imaging, and synergistically killed MRSA via •OH, LL-37, and vancomycinMIL-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]IndiaAg–Cu NPsMetal-basedS. aureus and MRSAExperimentalEffective at MIC 156.3–312.5 µg/mL. Inhibited growth rapidly, reusable, and eco-friendly synthesisMembrane damage and ROS overproduction leading to lipid oxidationReusability, rapid action (30 min), green synthesis from agro-waste, stability for repeated use-Preclinical (unspecified)
31[50]IranSilver chloride nanoparticles (AgCl NPs)Metal-basedS. aureus and B. subtilisExperimentalShowed strong antibacterial activity against drug-resistant strains and cytotoxicity to MCF-7 and HepG2; MIC 12.5–50 µg/mLDisrupts bacterial membranes and binds to proteins and DNA; Ag+ inhibits replication and inactivates proteins; ROS contributes to cytotoxicityThe nanoparticles exhibit higher antioxidant activity than conventional agents-Preclinical (unspecified)
32[51]NigeriaChitosan nanoparticlesPolymericS. aureus (haemolytic and clinical strains) and S. saprophyticusExperimental39 mm inhibition zone against S. saprophyticus; MIC: 0.0781–0.3125 mg/mLIncreases bacterial membrane permeability and binds DNA, blocking mRNA synthesisMore effective than levofloxacin against S. saprophyticus; comparable efficacy for other tested strains-Preclinical (unspecified)
33[52]ChinaROS-responsive, bacteria-targeted moxifloxacin nanoparticle for moxifloxacin delivery (MXF@UiO-UBI-PEGTK)Biologically derivedS. aureus, and MRSAExperimentalROS-responsive moxifloxacin (MXF) release improved biofilm penetration in vitro and treated endophthalmitis in vivoROS-cleavable poly (ethylene glycol)-thioketal (PEG-TK) triggers MXF release in high ROS; UBI29–41 targets bacteria/biofilms; MXF blocks DNA gyrase and topoisomeraseOutperformed free moxifloxacin in biofilm penetration, ROS-responsive targeted delivery, and in vivo infection resolution with reduced inflammation-In vivo (animal model)
34[53]IndiaSilver oxide (Ag2O) nanoparticlesMetal-oxide-basedMRSAExperimentalDemonstrated potent antibacterial activity against MRSA, with a 17.6 ± 0.5 mm inhibition zoneAg2O nanoparticle production may be enzyme-mediatedAg2O nanoparticles are freely dispersed, enhancing their effectiveness-In vivo (animal model)
35[54]EgyptAgNPsMetal-basedS. aureusExperimentalShowed strong activity vs. MDR bacteria (MIC 31–250 µg/mL, MBC 125–500 µg/mL)Disruption of bacterial cell membrane structure, leakage of intracellular contentsAgNPs (S4) showed superior antibacterial activity compared to AgNO3 and ginger extract alone-Preclinical (unspecified)
36[55]IndiaIron oxide nanoparticles (FeONPs)Metal-oxide-basedS. aureusExperimentalStrong antibacterial/antifungal activity; rapid synthesis verified by UV-Vis, XRD, SEM, TEMAct through direct contact with bacterial cell wallsEnhance membrane permeability and cell destruction-Preclinical (unspecified)
37[56]IndiaAgNPsMetal-basedS. aureusExperimentalProduced 27 mm and 32 mm zones vs. MDR S. aureusDisrupts the outer membrane, binds thiols, impairs replication, and generates ROS, causing damage and enzyme inhibitionAgNPs showed 27 mm (S. aureus), far exceeding antibiotics (≤ 5 mm)-
Preclinical (unspecified)
38[57]MalaysiaAgNPsMetal-basedMRSAExperimental-Phyto-AgNPs are antibacterial, and with antibiotics, greatly increase MRSA inhibition zonesAgNP-antibiotic combinations showed significantly larger inhibition zones compared to antibiotics or AgNPs aloneThe precise mechanism of action for nanoparticles remains unclearPreclinical (unspecified)
39[58]LithuaniaNisin-loaded iron oxide magnetic nanoparticles (IONPs)Metal oxide/biologically derivedB. subtilis ATCC 6633ExperimentalNisin-magnetic nanoparticles combined with pulsed electric field (PEF)/pulsed electromagnetic field (PEMF) boost antimicrobial action and resistance synergisticallyNisin resistance mechanisms were identified in Gram-positive bacteriaNanomaterials enhance the stability and activity of antimicrobial agentsMechanism not fully understood and requires further investigationPreclinical (unspecified)
40[59]EthiopiaCopper oxide nanoparticles (CONPs)Metal-oxide-basedS. aureusExperimentalActive 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 structuresCONPs possess strong antioxidant potential compared to conventional agentsStill needs some modifications on CONPs concerning ascorbic acid activityPreclinical (unspecified)
41[60]IranAgNPsMetal-basedS. aureusExperimentalStrong activity MIC  ≈  0.1 µg/mL for S. aureus and degraded pollutants photocatalyticallyMembrane penetration/disruption, thiol binding, DNA replication inhibition, and ROS generationAgNPs@SI had lower MICs than ciprofloxacin for some strains and were eco-friendly synthesized without toxic chemicals-Preclinical (unspecified)
42[61]EgyptAgNPsMetal-basedStreptococcus agalactiaeExperimentalShowed antimicrobial activity against MDR mastitis pathogensAgNPs act by disrupting microbial membranes, causing rupture and content leakageEffective against MDR pathogens with lower cytotoxicity and an alternative to antibiotics in mastitis treatmentNo in vivo studies support the clinical use of these compoundsClinical
43[62]IranChitosan-based nanofibrous mats embedded with silver, copper oxide, and zinc oxide nanoparticles (CS-nACZ)Metal oxide-polymeric basedS. aureusExperimentalStrong 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]LithuaniaMethionine-capped ultra-small gold (Au@Met) nanoparticles and methionine-stabilized magnetite-gold (Fe3O4@Au@Met) nanoparticlesMetal/biologically derivedMRSA, Micrococcus luteusExperimentalShowed 89.1–75.7% against Gram-positive bacteria at 70 mg/L concentrationThe presence of Au+ ions causes interaction with bacterial membranes and metabolic imbalanceHigh biocompatibility, non-toxicity, effective at low concentration, and activity against MDR pathogens-In vivo (animal model)
45[64]IranChitosan NPs and TiO2 NPsPolymer/Metal-basedStreptococcus mutansExperimentalExperimental 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]BrazilTea tree oil and low molecular weight chitosan (TTO-CH) nanoparticlesBiologically derived polymeric-basedStreptococcus sanguinisExperimentalTTO-CH showed strong antimicrobial activity and had synergistic effects, matching azithromycin against mono- and mixed biofilmsAttributed to terpinen-4-ol and terpinene in TTO, the mechanism involves membrane disruption and metabolic interferenceTTO-CH combination matched azithromycin in activity against oral biofilms and offers a natural alternative to antibioticsFurther studies are required to confirm efficacy in vivo and explore potential clinical applicationsClinical
47[66]IndiaAgNPsMetal-basedS. aureusExperimentalExhibited up to 92.41% inhibition of S. aureus biofilms; anti-adhesion and biofilm disruption effectsDisrupt bacterial cell membranes, generate ROS, and interfere with cellular functions to inhibit biofilm formationExhibit stronger biofilm inhibition and penetration against antibiotics; plant-based eco-synthesis improves biocompatibility-Preclinical (unspecified)
48[67]ChinaEpigallocatechin gallate-gold nanoparticles (E–Au NPs)Metal/Biologically derivedMRSA and S. aureusExperimentalNIR-triggered, achieved > 90% MRSA biofilm destruction, strong antibacterial/antibiofilm effects, and promoted wound/keratitis healing with high biocompatibilityCombines mild photothermal therapy (PTT), ROS, quinoprotein formation, gene downregulation, and cell wall disruptionHighly 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]ChinaNano-Germanium dioxide (GeO2)/cetyltrimethylammonium bromide (CTAB) complex (nano-GeO2/CTAB complex)Biologically derivedS. aureusExperimentalNano-GeO2/CTAB complex showed stronger Gram+ antibacterial activity than the individual components--More research is needed on long-term efficacy and environmental safety before usePreclinical (unspecified)
50[69]Iranα-Fe2O3 nanoparticles (α-Fe2O3-NPs)Metal oxide/biologically derivedS. aureus and B. cereusExperimentalExhibited significant antibacterial activity with MIC values between 0.625–5 µg/mL and MBC values between 5–20 µg/mLROS 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 applicationClinical
51[70]IndiaErythromycin-loaded PLGA nanoparticles (PLGA-Ery NPs)Polymer-basedS. aureusExperimentalEnhanced antibacterial activity (1.5–2.1× MIC) against S. aureus, biofilm inhibitionProvided sustained drug release, better cell penetration, disrupted cell walls, and lowered efflux activityImproved efficacy against resistant strains, biofilm inhibition, sustained drug release, and reduced toxicity-Preclinical (unspecified)
52[71]IranPEG-coated UIO-66-NH2 nanoparticles loaded with vancomycin and amikacin (VAN/AMK-UIO-66-NH2@PEG)Biologically derivedVancomycin-resistant S. aureus (VRSA)ExperimentalStronger antibacterial/antibiofilm effects downregulated mecA, vanA, icaA, icaD; showed potent antioxidant activityInhibits biofilm and MDR gene expression (mecA, vanA, icaA, icaD); PEGylation enhances drug retention and deliveryLower MIC/MBC than free VAN/AMK or VAN/AMK-UIO-66; sustained release, better stability, encapsulation, and bioavailabilityFuture in vivo studies are needed to assess safety, efficacy, and clinical use of these nanoparticlesClinical
53[72]NigeriaAgNPs, AuNPs, and bimetallic gold-silver nanoparticlesMetal-basedS. aureus (ATCC 25923)ExperimentalShowed strong antibacterial activity against S. aureus, with a MIC of 1.953 μg/mLMetal ions are liberated into the cells by oxidation and produce ROS that attack the bacterial cells and cause cell deathOffer a potential indigenous alternative to combat antibiotic resistance-Preclinical (unspecified)
54[73]ChinaCopper-doped hollow mesoporous cerium oxide (Cu-HMCe) nanozymeBiologically derivedS. aureusExperimentalExhibited strong antibacterial properties against S. aureusHMCe reduces bacterial viability via oxidative stress and disrupted nutrient transportShows promise for treating acidified chronic refractory wounds with infectionsFurther research is needed on its biosafety and vascularization mechanismPreclinical (unspecified)
55[74]ChinaBacteria-activated macrophage membrane coated ROS-responsive vancomycin nanoparticles (Sa-MM@Van-NPs)Biologically derivedMRSAExperimentalEfficiently targeted infected sites and released vancomycin to eliminate bacteria, facilitating faster wound healingTargets infections via receptor interactions and releases antibiotics in high ROS to kill bacteriaROS-responsive release of antibiotics improves antibacterial efficacy-Preclinical (unspecified)
56[75]IraqAgNPsBiologically derivedS. sciuri and S. lentusExperimentalStrong Gram+ activity by disrupting membranes and causing nucleic acid/protein leakageDamaged bacterial membranes cause DNA, RNA, and protein leakage-Studies are needed to clarify mechanisms and assess in vivo safetyIn vivo (animal model)
57[76]ChinaPolypeptide-based carbon nanoparticlesCarbon-basedS. aureus, and MRSAExperimentalAchieved 99%+ inhibition of S. aureus and ~99% healing in MRSA wound infectionsNanozyme’s peroxidase, oxidase, catalase, and glutathione peroxidase (GPx)-like activities regulate ROS for bacterial inhibitionShowed high inhibition against Gram-positive S. aureus planktonic bacteria-Preclinical (unspecified)
58[77]EgyptVancomycin functionalized silver nanoparticles (Ag-VanNPs)Metal/Biologically derivedMRSAExperimentalLowered 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]IndiaCuNPsMetalS. aureusExperimentalCuNPs 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]IndiaSarsaparilla root extract fabricated silver nanoparticles (sAgNPs)Metal/Biologically derivedS. aureus and MRSAExperimentalShowed MICs 125 μM S. aureus, MRSA, and protected zebrafish from infectionAt 1×  MIC, sAgNPs generate excess ROS and disrupt membranes, causing depolarizationPotential to act as nanocatalysts and nano-drugs in addressing key challenges in medical and environmental research-Preclinical (unspecified)
61[80]PakistanZnO NPs and aluminum-doped ZnO NPs (Zn1−xAlxO NCs)Biologically derivedS. aureusExperimentalPossess largest inhibition zones (notably vs. B. cereus), with strong antimicrobial effects, low toxicity, and high biocompatibilityZn2+ and ROS damage membranes/DNA, inhibit enzymes, and block biofilm formationAl-doping increases antimicrobial activity through enhanced ROS generation-Preclinical (unspecified)
62[81]IranChitosan, ZnO, and ZnO–Urtica. diocia (ZnO–U. diocia) NPsPolymer and metal-oxide-basedS. aureusExperimentalThe zone of inhibition for was greater for aqueous leaf extract against S. aureusInteract with microbial membranes, results in structural damage, protein denaturation, and generation of ROS leading to cell deathShowed enhanced antimicrobial efficacy over crude extracts and were environmentally friendly-Preclinical (unspecified)
63[82]ItalySurface active maghemite nanoparticles (SAMN), colloidal iron oxide NPs with oxyhydroxide-like surfaceBiologically derivedListeria spp.ExperimentalCaptured 100% of bacteria in wastewater without agitation and bound stably, non-toxically to polysaccharides and cellsBind peptidoglycan and polysaccharides via chelation and electrostatic interactionsNon-toxic, reusable, and highly stable, and enables physical removal of Gram (+) bacteria as an alternative to antibiotics-Preclinical (unspecified)
64[83]ChinaNickel oxide nanoparticles (NiOx NPs)Metal oxideMRSAExperimentalEradicated MRSA and biofilms in vitro and in vivo and promoted wound healing, collagen deposition, and tissue regeneration in animal modelsOxygen vacancies boost ROS and photothermal effects; NiOx mimics oxidase/peroxidase to generate •OH and damage membranes, DNA, and proteinsNon-antibiotic dual-action strategy; effective against drug-resistant biofilms with high biosafety, biocompatibility, and regenerative propertiesThe long-term effects of NiOx NPs were not addressed.In vivo (animal model)
65[84]NigeriaGreen-synthesized AgNPs using Vitex grandifolia leaves extractBiologically derivedStreptococcus pyogenes and S. aureusExperimentalSignificant antibacterial activity against MDR pathogens; inhibition zones up to 15 mm at 100 µg/mL; concentration-dependent responseAg+ release disrupts membranes, inactivates enzymes, generates ROS, and blocks DNA/protein synthesis-Further research is needed to confirm safety and biocompatibilityPreclinical (unspecified)
66[85]ThailandAg/AgCl-NPsMetal/Metal oxide basedS. haemolyticusExperimentalMIC/MBC 7.8–15.6 µg/mL; reduced biofilm biomass ~95% and viability ~78%; caused visible cell damageROS-driven membrane damage, morphological changes, and reduced viability in the biofilm strainThe synthesized Ag/AgCl-NPs show an enhanced antibacterial and antibiofilm agent against S. haemolyticus-Preclinical (unspecified)
67[86]IndiaZnO NPsMetal oxideS. aureus and Streptococcus pyogenesExperimentalInhibited bacterial growth and biofilms in a dose-dependent manner, confirmed by SEM and CFU reductionAntibacterial and antibiofilm effects stem from membrane disruption and ROS-induced stressAntibiotic-loaded ZnO NPs showed stronger antibacterial activity than Li-ZnO NPs or ciprofloxacin alone-Preclinical (unspecified)
68[87]IraqAgNPsMetal-basedMDR bacteria (not specified)ExperimentalAgNPs showed significant dose-dependent antibacterial activity-AgNPs exhibited antibacterial activity against MDR bacteria compared to conventional agentsNanotoxicology studies are needed to find doses balancing antibacterial efficacy and low human toxicityIn vivo (animal model)
69[88]Saudi ArabiaNickel ferrite nanoparticles (NiFe2O4 NPs)Metal-oxide-basedMRSAExperimentalMIC 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 deformationNiFe2O4 NPs not only prevent the formation of biofilm, but also eliminate existing mature biofilms by 50.5–75.79%-Preclinical (unspecified)
70[89]PortugalPhoto-crosslinked chitosan/methacrylated hyaluronic acid nanoparticles (HAMA/CS NPs)Polymer-basedS. aureus, MRSA, and S. epidermidisExperimentalShowed strong antibacterial/antibiofilm effects and boosted mammalian cell growthInhibit growth via contact, cut biofilms, and improve delivery/diffusion for antibacterial action at 37°CStrong antibacterial/anti-biofilm effects in wounds, supports cell growth, is non-cytotoxic, and enables targeted antibiotic delivery-Preclinical (unspecified)
71[90]GermanyPLGA-based NPsPolymer-basedMRSAExperimentalThe efficacy against MSSA and MRSA strains was demonstrated in vitro in several bacteria strains and in vivo in the G. mellonella modelSV7-loaded nanoparticles target intracellular MRSA infections effectivelySV7-loaded nanoparticles show a safe profile at all tested concentrationsFurther in vivo mouse studies are needed to optimize post-infection regimens in complex environmentIn vivo (animal model)
72[91]EgyptZnO NPsMetal oxideS. aureusExperimentalShowed 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 deathZinc nanoparticles exhibit potential antibacterial and anticancer properties-Preclinical (unspecified)
73[92]IndiaIn situ aqueous nanosuspension of PPEF.3HCl (IsPPEF.3HCl-NS) Biologically derivedMRSAExperimentalInhibited bacterial growth, showing promise against intracellular MRSABlocks DNA rejoining and disrupts enzymatic processes as a poison inhibitorIsPPEF.3HCl-NS enhanced log CFU reduction in S. aureus-induced murine sepsis model-Preclinical (unspecified)
74[93]RomaniaAgNPsMetal-basedS. aureus (ATCC 29213), MRSA, E. faecalis (ATCC 29212)ExperimentalExhibit strong antibacterial effects by damaging bacterial cell membranes and generating oxidative stressAg+ ions disrupt membranes, trigger ROS and oxidative stress, block ATP synthesis, alter gene expression, and inhibit respirationNanomaterials offer enhanced antibacterial efficacy against MDR bacteriaMore in vivo studies are needed for satisfactory resultsPreclinical (unspecified)
75[94]ChinaSilver- and zinc-doped silica nanoparticles synthesized using the sol-gel [Ag/Zn–SiO2 NPs (sol-gel)]Metal/Biologically derivedS. aureus, E. faecalisExperimentalDemonstrated antibacterial and antifungal properties against all the tested strainsReleased Ag+, Cu2+, and Zn2+ ions damage bacterial membranes and inhibit growthAg- and Zn-doped silica NPs were found effective against periodontitis microbe-In vivo (animal model)
76[95]ChinaDMY-AgNPs (silver nanoparticles synthesized using dihydromyricetin)Metal/Biologically derivedMRSAExperimentalShowed 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 AgNPsHigh AgNPs concentrations impacted zebrafish embryo developmentIn vivo (animal model)
77[96]PakistanLevofloxacin loaded chitosan and poly-lactic-co-glycolic acid nano-particles (LVX-CS-III PLGA-I NPs)Polymer-basedS. aureusExperimentalBetter antibacterial potency against gram+ve bacteriaCS-NPs enhance antibiotic delivery and pharmacokinetic profilesImproved antibiotic sensitivity without compromising patient safety; enhanced zone of inhibition compared to free LVXConflicting reports exist on mass ratios affecting nanoparticle characteristicsPreclinical (unspecified)
78[97]PakistanAgNPsMetal-basedS. aureusExperimentalAgNPs exhibited significant antibacterial and antifungal activities-Aqueous extract of AgNPs provides a safer alternative to conventional antibacterial agents-Preclinical (unspecified)
79[98]IndiaAgNP-antibiotic combinations (SACs) synthesized using Streptococcus pneumoniae ATCC 49619Metal-basedEnterococcus faecium, S. aureusExperimentalSACs synergized with antibiotics, cutting required doses up to 32× and showing growth inhibition and bactericidal effectsAgNPs in SACs boost local Ag+ release, forming membrane pores, causing leakage, and killing bacteriaUp to 32-fold enhanced antibacterial activity, effective against biofilms, non-cytotoxic to normal cells-Preclinical (unspecified)
80[99]ChinaEpigallocatechin gallate-ferric (EGCG-Fe) complex nanoparticles Biologically derivedS. aureusExperimentalUses photothermal conversion to enhance antibacterial effects on S. aureus, prevent/destroy biofilms, and aid wound healing in vivoPhotothermal effect disrupts bacterial membranes and enhances antibacterial performance upon NIR laser irradiationShows photothermal enhanced antibacterial and wound healing effects compared to conventional agents-In vivo (animal model)
81[100]ArgentinaAgNPsMetal-basedS. aureusExperimentalAgNPs with a diameter of around 11 nm exhibited high antibacterial activity against both tested bacteriaThe AgNPs increased intracellular ROS levels in both bacteria and caused membrane damageAgNPs showed high antibacterial activity against S. aureus-Preclinical (unspecified)
82[101]Saudi ArabiaAuNPsMetal-basedS. aureusExperimentalStrong antimicrobial activity, especially at 20 µg/vol; inhibited Gram-positive bacteriaNilavembu choornam-gold nanoparticles (NC-GNPs) disrupt bacterial membrane integrity, leading to cell deathNC-GNPs enhance drug efficacy and combat antibiotic resistanceVariations in drug delivery rates limit therapeutic efficacyIn vivo (animal model)
83[102]IndonesiaAuNPsMetal-basedS. aureus and MRSAExperimentalShowed antibacterial activity; higher metal ion levels increased efficiencyDamaged bacterial cell walls, disrupted metabolism, and ROS generation--Preclinical (unspecified)
84[103]BangladeshGreen synthesized chitosan nanoparticles (ChiNPs)Biologically derivedS. aureus strainsExperimentalReduced zones of inhibition against methicillin-resistant (mecA) and penicillin-resistant (blaZ) S. aureusPositively 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 applicationPreclinical (unspecified)
85[104]New ZealandAuNPsMetal-basedS. aureus (MRSA ATCC 33593)ExperimentalShowed 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]IraqAgNPsMetal-basedStreptococcus mitisExperimentalSynergistic effect in the inhibition when combining AgNPs with some antibiotics-Clear synergistic effect in the inhibition of Streptococcus mitis-Preclinical (unspecified)
87[106]EgyptStreptomycin (Str) and Moringa oleifera leaf extract (MOLe)-loaded ZnONPs (Str/MOLe@ZnONPs)Biologically derivedE. faecalisExperimentalStrongly inhibited E. faecalis growth and biofilm formationEnhance delivery by bacterial binding, blocking efflux pumps, and disrupting membranesNanoparticles enhance antibiotic binding to bacteria, improving efficacy-Preclinical (unspecified)
88[107]ChinaPhenylboronic acid-functionalized BSA@CuS@PpIX (BSA@CuS@PpIX@PBA; BCPP) nanoparticlesBiologically derivedS. aureusExperimentalBCPP exhibited good bacteria-targeting properties for both S. aureusProduces ROS, amplifying Str’s bactericidal actionBCPP shows good hemocompatibility and low cytotoxicity compared to conventional agentsPhotodynamic therapy (PDT) is restricted by poor photosensitizer solubility and a short half-lifePreclinical (unspecified)
89[108]EgyptTiO2, magnesium oxide (MgO), calcium oxide (CaO), and ZnO nanoparticlesMetal/Metal oxide-basedS. aureusExperimentalShowed significant antibacterial effects, particularly MgO- and ZnO-hydrogel typesGenerated free radicals and ROS that damage membranes, proteins, and DNA, causing bacterial deathEmbedding nanoparticles in hydrogels prevents aggregation and boosts antibacterial synergy-Preclinical (unspecified)
90[109]EgyptMyricetin-coated zinc oxide/polyvinyl alcohol nanocomposites (MYR-loaded ZnO/PVA NCs)Biologically derivedClostridium (C.) perfringensExperimentalC. perfringens isolates were most sensitive to MYR-loaded ZnO/PVA, with MICs of 0.125–2 μg/mLMYR inhibits α-hemolysin-induced cell damage without inhibiting bacterial growthNanomaterials exhibit enhanced antimicrobial activity compared to conventional agentsIn vivo studies are needed for validationIn vivo (animal model)
91[110]EgyptCiprofloxacin hydrochloride (CIP) encapsulated in PLGA nanoparticles coated with chitosan (CIP-CS-PLGA-NPs)Polymer-basedE. faecalisExperimentalEnabled controlled release, boosted antibacterial/antibiofilm effects, and improved healing-Exhibited greater antibacterial and anti-biofilm activity than free ciprofloxacin and calcium hydroxideThere is a need to link current findings to short- and long-term periapical healingPreclinical (unspecified)
92[111]IranSilver nanoparticles and propolis (AgNPs@propolis)Biologically derivedS. aureus and E. faecalisExperimentalPossesses a low toxic effect on the cell and has a high effect in inhibiting the growth of various bacteriaMembrane damage, energy transfer disruption, ROS generation, and toxic element releaseGreen synthesis reduces toxic effects compared to conventional methods-Preclinical (unspecified)
93[112]Czech RepublicTiO2 NPsMetal-oxide-basedS. aureusExperimentalOffer a promising alternative to antibiotics, particularly for controlling MDRDisrupts cell wall integrity, leading to cell deathTiO2 NPs exhibit enhanced antimicrobial properties against resistant strainsMore studies are required to explore full applications and possible hazardsPreclinical (unspecified)
94[113]AlgeriaSilver carbonate nanoparticles (BioAg2CO3NPs)Biologically derivedS. aureusExperimentalDisplayed good antibacterial and antibiofilm activityProtein inactivation, production of ROS, and formation of free radicalsPathogens fail to develop resistance to BioAg2CO3NPs, unlike conventional antimicrobials-Preclinical (unspecified)
95[114]TurkeyBiogenic AgNPsBiologically derivedS. aureusExperimentalShowed antibacterial activity against S. aureus-The synergistic effects increased antibacterial effectiveness-Preclinical (unspecified)
96[115]USAPVP- or PEG-coated Ga2(HPO4)3 nanoparticlesBiologically derivedS. aureusExperimentalExhibit potent antimicrobial activity that is comparable to Ga(NO3)3-Showed no bacterial resistance after 30 days, unlike Ga(NO3)3 and ciprofloxacinIneffective against Gram-positive S. aureus even at high concentrationsIn vivo (animal model)
97[116]EthiopiaSilver and cobalt oxide nanoparticles (Ag/Co3O4 NPs)Metal-metal oxide-basedS. aureus and E. faecalisExperimentalShowed promising antibacterial activities, with Ag NPs exhibiting the best inhibitionDisintegration of bacterial cell membranes results in pathogen deathHigh specific surface area of the nanoparticles enhances antibacterial performance-Preclinical (unspecified)
98[117]Saudi ArabiaSaponin-derived AgNPs (AgNPs-S)Biologically derivedMTCC-121 (B. subtilis), MTCC-439 (E. faecalis), and MTCC-96 (S. aureus)ExperimentalExhibited potent antibacterial activity against both Gram-positive and Gram-negative bacteriaDamaged bacterial membranes, causing DNA, RNA, and protein leakage-Further investigations to elucidate the possible mechanism involved and safety concernsPreclinical (unspecified)
99[118]USAAgNPsMetal-basedS. aureusExperimentalKenaf-based activated carbon (KAC)-chitosan (CS)-AgNPs exhibited a strong bactericidal effect with an MIC of 43.6 µg/mL for S. aureusDisruption of bacterial cell walls, generation of ROS, interaction with sulfur and phosphorus of DNA, and cell deathEnvironmentally friendly synthesis method compared to conventional agents-Preclinical (unspecified)
100[119]United Arab EmiratesCuO, ZnO, and tungsten trioxide (WO3) nanoparticlesMetal-oxide-basedS. aureus and MRSAExperimentalExhibited 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 stainingNanomaterials exhibit > 90% antimicrobial activity at low concentrationsVarying results based on the NPs sizePreclinical (unspecified)
101[120]SpainAuNPsMetal-basedS. aureusExperimentalThe 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 antibioticInternalization into bacteria, damage to the bacterial surface, production of ROS, and disruption of biosynthetic machinery led to microbial deathActs quickly, favoring microbial death with a small antibiotic, thereby combating resistance and avoiding side effects derived from high dosesFurther investigations to identify possible long-term adverse effectsIn vivo (animal model)
102[121]SpainSilver, gold, zinc, and copper nanoparticles (Ag, Au, Zn, and Cu NPs)Metal-basedEnterococcus spp.ExperimentalEffectively 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 disinfectantsFurther studies are required to confirm the compatibility and cytotoxicity of the most successful combinationsIn vivo (animal model)
103[122]EgyptLiposomal nanoparticles (LNPs)Lipid-basedMRSAExperimentalCombination therapies (AuNPs/AgNPs) and traditional antibiotics, provided enhanced antimicrobial efficacy and inhibited biofilm formation-This combination may overcome resistance and restore sensitivity in MDR bacteriaFurther investigations are necessary to establish the safety and cytotoxicity profiles of these nanocomplexesPreclinical (unspecified)
104[123]EgyptZnONPsMetal-oxide-basedEnterococcus spp. and MRSAExperimentalExhibited a synergistic antibacterial effect, showing enhanced inhibition compared to individual NPsBased on the generation of ROS, leading to lipid peroxidation and membrane damageOffers a non-toxic, non-invasive, and cost-effective alternative to conventional antimicrobialsFurther in vivo investigations are required to validate the safety and efficacyIn vivo (animal model)
105[124]Australia(Rif)-loaded MSN and organo-modified (ethylene-bridged) MSN (MON)Inorganic basedS. aureusExperimentalThe combined effects reduced the CFU of intracellular SCV-SA 28 times and 65 times compared to MSN-Rif and non-encapsulated Rif, respectivelyIncreased uptake of MON is five-fold compared to MSNMON reduced CFU of intracellular SCV-SA significantly compared to MSN-RifFurther in vivo validation would be requiredIn vivo (animal model)
106[125]SpainSilica MSNsInorganic-basedS. aureus and E. faecalisExperimentalDisplayed antibacterial activity against S. aureus with Ag-containing materials, showing the highest effectivenessBacterial death, including interactions with the outer and inner membranes, and alterations in the cytoplasmic membraneAct as carriers of antibiotics, increasing their ability to penetrate the biofilm bacteria often developed to conventional antibioticsFurther in vivo studies will be necessary to validate their biomedical applicationIn vivo (animal model)
107[126]RomaniaZnO NPsMetal-oxide-basedS. aureusExperimentalThe hydrogels containing 4% and 5% ZnO NPs, respectively, showed good antimicrobial activityDirect 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 quantityPreclinical (unspecified)
108[127]USAAgNPsMetal-basedMRSAExperimentalPromising clinical application as a potential stand-alone therapy or antibiotic adjuvant-Synergy with clinically relevant antibiotics reduced the MIC of aminoglycosides by approximately 22-foldExhibits cytotoxicity, which could limit its application as a broad oral antimicrobialClinical
109[128]IndiaZnO NPsMetal-oxide-basedB. cereusExperimentalExhibited 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/mLZnO NPs target the cell membrane-induced ROS generation as a bactericidal mechanismZnO NPs reduced the bacterial cell viability and eradicate the biofilms-Preclinical (unspecified)
110[129]Saudi ArabiaAgNPsMetal-basedS. aureusExperimentalEnhanced antibacterial activity by increasing inhibition zones and reducing MIC values compared to lincomycin or AgNPs aloneThe ROS, along with free radicals, damaged the bacterial cell wall and also inhibited the respiratory enzymesEnhanced antibacterial efficacy compared to lincomycin alone, reducing MIC and increasing inhibition zone diametersLincomycin has restricted Gram-positive antibacterial activity and is developing resistancePreclinical (unspecified)
111[130]IranAg Np conjugated to chitosan (Ag Np and Chitosan NpInorganic metal-basedMRSAExperimentalAg 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 ArabiaCNPsPolymer-basedStreptococcus pneumoniaeExperimentalEnhanced antibacterial activity compared to C3-005 aloneC3-005 reduces ATP generation in Streptococcus pneumoniaePrecise mechanism of haemolysis reduction by CNPs has not been determined-Preclinical (unspecified)
113[132]Saudi ArabiaAgNPsMetal-basedMRSAExperimentalExhibited high antimicrobial activity and a synergistic effect with penicillin against MRSA strainsAgNPs enhance antibiotic efficiency through synergistic effects with penicillinAgNPs exhibited high antimicrobial activity and a synergistic effect with penicillin against MRSA strainsPhenotype from healthcare-associated (HA)-MRSA lacks plasmid DNA, limiting resistance understandingPreclinical (unspecified)
114[133]ChinaAgNPsMetal-basedStreptococcus suisExperimentalSignificantly inhibited the growth of MDR Streptococcus suis, disrupted bacterial morphology and cell walls, and destroyed biofilm structuresROS overproduction inhibited peptidoglycan biosynthesis, downregulated bacterial division proteins, and interfered with quorum sensingAgNPs are effective against MDR bacteria, unlike conventional antibioticsInsufficient antioxidant enzyme expression to eliminate excessive ROS effectivelyPreclinical (unspecified)
115[134]South KoreaC2-coated ZnONPs (C2-ZnONPs)Inorganic basedS. aureusExperimentalC2-ZnONPs inhibited biofilm and virulence of S. aureusLam-AuNPs disrupt mature biofilm structures in a dose-dependent mannerLam-AuNPs effectively control biofilm and virulence in pathogensThe need to unravel the molecular mechanism of biofilm and virulence attenuationPreclinical (unspecified)
116[135]USAAg NPsMetal basedS. aureusExperimentalAg 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 aloneTo evaluate its effectiveness against pathogens that cause prosthetic joint infectionPreclinical (unspecified)
117[136]ChinaTi3C2Tx MXene loaded with indocyanine green nanoparticles (ICG@Ti3C2Tx MXene NPs)Biologically derivedStreptococcus mutansExperimentalICG-MXene under NIR irradiation killed MRSA; no antibacterial effect without NIRCombination of the photothermal effect of MXene and the photodynamic effect of ICGICG-MXene has a great synergistic PTT/PDT effect against MRSA-Preclinical (unspecified)
118[137]IndiaZn and Mg substituted β-tricalcium phosphate/functionalized multiwalled carbon nanotube (f-MWCNT) nanocompositesMetal basedMRSAExperimentalThe 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]JordanTryasine-AgNPsMetal-based/biologically derivedMRSAExperimentalMore effective with MICs ranging from 30 to 100 µM, while at 100 µM caused only 1% haemolysis on human erythrocytes after 30 min of incubationTryasine enters the bacterial cell wall outer membrane, increasing its permeability, and the antibiotic impact of AgNPsStrong activity against resistant bacteria while exhibiting low haemolytic activity and cytotoxicityPotential toxicity not extensively evaluated beyond hemolytic assayPreclinical (unspecified)
120[139]IraqAgNPsMetal-basedS. aureus, S. epidermidisExperimentalBroad-spectrum antibacterial activity. Synergistic effect with multiple antibiotics, increasing the inhibition fold areaGeneration of ROS, disruption of the electron transport chain, decreased ATP levels, interference with the plasma membrane, and inhibition of DNA unwindingSynergistic combination of AgNPs with conventional antibiotics enhances antibacterial efficacy against resistant strainsFurther investigations (e.g., checkerboard assay, cytotoxicity, and blood compatibility studies) are requiredPreclinical (unspecified)
121[140]Saudi ArabiaAgNPsMetal-basedS. aureus, S. saprophyticus, S. sciuri, and S. epidermidisExperimentalAgNPs (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 membranesEnhances antimicrobial efficacy, reduces required antibiotic doses, and minimizes toxicity against AMR strainsTo evaluate potential cytotoxicity and confirm in vivo effectivenessIn vivo (animal model)
122[141]TurkeyAg–Pt nanoparticlesMetal basedS. aureus, B. subtilis, S. epidermidisExperimentalAntimicrobial 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 effectPropolis in nanoparticle synthesis helps prevent industrial synthesis methods that consume more resources and induce side effects-Preclinical (unspecified)
123[142]BrazilBiogenically synthesized silver nanoparticles using Fusarium oxysporum (BioAgNP)Biologically derivedMRSAExperimentalBioAgNP and thymol exhibited synergistic antibacterial activity, inhibited biofilm, and prevented the development of MDRMembrane disruption, leakage of intracellular contents, oxidative stress (ROS, lipid peroxidation)Combination prevented resistance development, faster antibacterial action, and reduced MIC valuesLimited to specific bacterial strains tested in the study.Preclinical (unspecified)
124[143]South KoreaThymol-zinc oxide nanocomposite (ZnO NCs)Metal oxide/biologically derivedStaphylococcus spp.ExperimentalHighly selective and bactericidal against S. epidermidis; MIC 2–32-fold lower than THO aloneMembrane rupture, suppression of biofilm, modulation of cell wall and protein synthesis pathwaysBioconjugation improves the efficacy of natural antibacterial compoundsThymol has low antibacterial activity and non-selectivityPreclinical (unspecified)
125[144]Saudi ArabiaChitosan silver and gold nanoparticles (CS-Ag-Au NPs)Metal/Polymer-basedB. subtilis and S. aureusExperimentalChitosan (Ch)-AgNPs showed strong antibacterial and antibiofilm activities; ch-AuNPs showed moderate to weak activityBiofilm formation aids bacterial colonization on surfacesBiogenic nanoparticles do not require rigorous conditions for synthesis like conventional agents-In vivo (animal model)
126[145]MexicoAgNPsMetal-basedS. aureusExperimentalIncreased 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 susceptibilityAgNPs can restore antibiotic activity and reduce treatment duration-Preclinical (unspecified)
127[146]IndiaAgNPsMetal-basedS. aureusExperimentalBest 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. aureusNanoparticles enhance antibiotic concentrations at infection sites-Preclinical (unspecified)
128[147]JordanTobramycin-chitosan nanoparticles (TOB-CS NPs) coated with zinc oxide nanoparticles (ZnO NPs)Biologically derivedS. aureusExperimentalEnhanced antimicrobial activity against S. aureus compared to TOB-CS NPs or ZnO NPs aloneGenerated oxidative stress and damage bacterial membranes; TOB inhibits protein synthesisNanoparticles can improve drug entrapment efficiency significantlyNo MIC data for S. aureus ATCC 29215 was foundPreclinical (unspecified)
129[148]Saudi ArabiaCeftriaxone-loaded gold nanoparticles (CGNPs)Metal-basedS. aureusExperimentalShowed MIC50 values 2× lower compared to pure ceftriaxone and enhanced antibacterial potencyCGNPs increase ceftriaxone concentration by attachmentCGNPs showed two times better antibacterial efficacy compared to pure ceftriaxone​In vivo studies on CGNPsʼ fate and toxicity are neededPreclinical (unspecified)
130[149]Czech RepublicAgNPsMetal-basedS. aureusExperimentalTMPyP and AgNPs showed a synergistic antimicrobial effect, a promising alternative against MDRPenetrate the bacterial cell and release Ag ions, which attack the respiratory chain, sulfur-containing proteins, and phosphorus-containing compounds such as DNAEffective fight against MDRlack of development in new molecules with antibacterial propertiesPreclinical (unspecified)
131[150]IranZinc sulfide (ZnS) nanoparticlesMetal-basedStreptococcus pyogenesExperimentalAntibacterial 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.