Figure 1.

TEM images and XPS spectrum. (a, b, c) TEM images of BSA-Au nanocomplexes with different magnifications and (d) XPS spectrum of BSA-Au nanocomplexes; the inset is the XPS spectrum of the Au 4f band.

Lin et al. Nanoscale Research Letters 2013 8:170   doi:10.1186/1556-276X-8-170
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