Figure 4.

TEM images and size distribution diagrams of GNPs. They were synthesized under labeled NaOH concentration (millimolars) at 85°C (B1-B4) and 70°C (C1-C4), respectively. Scale bar: 100 nm.

Li et al. Nanoscale Research Letters 2011 6:440   doi:10.1186/1556-276X-6-440
Download authors' original image