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. 2013 Oct 9;8(10):e77043. doi: 10.1371/journal.pone.0077043

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© 2013 Balachandran et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Viability of E. coli cells in solid agar and NB liquid media on exposure to antibiotic (ampicillin) and Ag NPs. Percentage histogram plot of the number of E. coli colonies as a function of the concentration of (a) ampicillin, (b) A. indica Ag NPs and (c) pectin Ag NPs in agar plates. Growth curve of E. coli in NB medium supplemented with (d) ampicillin, (e) A. indica Ag NPs and (f) pectin Ag NPs.