Results obtained by using disk diffusion tests (Fig. 5) were
also in good agreement with the MIC/MBC tests, where AgNPs
up to 10 nm size showed a clear zone of inhibition (ZoI) on agar
plates spread with E. coli MTCC 443 strain. The diameter of the
ZoI was measured as 12.4 mm, 11.2 mm, 11.1 mm, and 6 mm
for Ag(5), Ag(7), Ag(10), and Ag(15) impregnated disks respectively