From:  Novel research in the field of non-invasive diagnostics of Helicobacter pylori utilizing a library of chemical piezoelectric sensors and portable devices

 Sensor signals (ΔFmax, Hz) of the “Food” array before and after urea loading on the first day of treatment monitoring on an empty stomach and after eating, V = 5 cm3.

Control pointsPost-meal testFasting test
Sensor number1234567812345678
Original background26101003479622371212648914625
Load 0 min3212963369727341110135610524
5 min2911933479724361212347918523
10 min30109635710625361311641612626
15 min238873046727391111743814623
20 min281010034688294212131481015523
25 min28109335710627411313545914626
30 min2788529477266818187611319835
35 min2610923469724491413643915733
40 min30101073468937451314044912629
45 min2588529365253811117381019727
50 min228812857728
55 min3391093669727