Figure 1.

UV–vis spectra observed after 24 h. (a) SPR due to Au NP produced by MBF; (b) no SPR absorbance in soluble fraction; (c) no SPR absorbance in gold ion solution without inoculum. The inset figure corroborating the same in the above-mentioned samples, respectively.

Srivastava et al. Nanoscale Research Letters 2013 8:70   doi:10.1186/1556-276X-8-70
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