Figure 4 | Scientific Reports

Figure 4

From: A novel, rapid, seedless, in situ synthesis method of shape and size controllable gold nanoparticles using phosphates

Figure 4

SEM/TEM images of representative samples, along with corresponding size-number distribution histogram. Samples presented are: (a) Standard; (b) GNP synthesized with NaH2PO4 added, the molar ratio of NaH2PO4: HEPES = 3; (c–g) GNPs synthesized with Na2HPO4 added, at molar ratios of Na2HPO4: HEPES = 0.5, 1.5, 3, 12, 30, respectively. SEM/TEM images were taken between 1–2 hours since synthesis started, and the size-number distribution histogram was measured at ~40 minutes since synthesis started.

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