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. 2019 Dec 12;14:9837–9854. doi: 10.2147/IJN.S228462

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© 2019 Kar et al.

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Antibacterial potency of different hydrogel patches. Digital image showing the antibacterial activity of different hydrogel patches against gram-negative (E. coli. and P. aeruginosa) and gram-positive (B. subtilis and S. Aureus) bacteria. (A) Zone inhibition assay (i = HG, ii = HG-Ag, iii = HG-EGCG, iv = HG-Ag-EGCG (10 ppm), v = HG-Ag-EGCG (50 ppm) treatment time 12hrs). (B) Growth curve analysis (treatment time 24hrs) for E. coli. and B. subtilis. Antibacterial activity data clearly indicate a potent antibacterial property of Hg-Ag-EGCG.