Activity of bismuth subsalicylate (BIS), 3-bromopyruvate (3-BP), sertraline (SER), and amoxicillin (AMX) released from BC carriers against H. pylori 8064 and Tx30a strains measured by a modified disk-diffusion method. Asterisks stand for a statistical significance (K-W test with post-hoc Dunn’s analysis). The dot-line at the value of 15 mm represents the diameter of BC carrier. Representative photos of H. pylori 8064 growth inhibition zones and cell morphology after exposure to BC carriers not chemisorbed (a negative control) or the tested compounds. Columns with the same subscript letters (a, b, c) are not significantly different from each other (p > 0.05). The presented results are the average of three independent biological tests (n = 3). Scale bar is equal to 1 cm.