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. 2014 May 19;9(5):e97881. doi: 10.1371/journal.pone.0097881

Figure 2. Biosynthesis of AgNPs by supernatant of Serratia sp. BHU-S4 (A).

Figure 2

Culture supernatant without 13 showed no color change (C) and after adding 1 mM AgNO3 showed visual color change from yellow to dark brown. (B) UV-visible absorption spectrum of bsAgNPs and 1 mM aqueous solution of AgNO3.