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The inhibitory effects of different materials on H. pylori were surveyed. The results revealed that AgNP/clay has more obvious inhibitory effect on H. pylori (concentration more than 0.08% of weight). However, clay did not have the inhibitory effect and the AgNP had mild inhibitory effect only in high concentrations. H. pylori: Helicobacter pylori; AgNP: silver nanoparticles.
