Figure 1.

SEM images of silver nanocrystals synthesized using PVP with varying MWs. Varying MWs (a) 8,000, (b) 29,000, (c) 40,000, and (d) 1,300,000. The insets are photographs of the corresponding silver colloids.

Song et al. Nanoscale Research Letters 2014 9:17   doi:10.1186/1556-276X-9-17
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