Figure 2.

UV–VIS absorption spectra of GNP at different compositions of tomato extract and SDS capped GNP in alkaline medium. UV-VIS spectra of (A) GNP at different compositions and (B) SDS-capped GNP. Insets are digital photographic images of A and B.

Barman et al. Nanoscale Research Letters 2013 8:181   doi:10.1186/1556-276X-8-181
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