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. 2014 Jan 7;8(2):1419–1428. doi: 10.1021/nn405240g

Figure 1.

Figure 1

Measurement of (A) ND particle sizes, (B) mobility (μe), and (C) zeta-potential (ζ) after dilution of the original ND-containing DMSO with acetone, ethanol, isopropyl alcohol (IPA), methanol, and water. Average values are reported from five repeats. (D) On the left is the SEM image showing NDs (bright white spots) seeded on gold surfaces by sonication in solution containing NDs at 0.25% (w/v) for 30 min. On the right is the SEM image after 2D FFT filtering highlights the seeded NDs as red regions. (E) Surface coverage obtained on gold surfaces by sonication in ND solution diluted with acetone, ethanol, IPA, methanol, and water. (F) Surface coverage of NDs obtained on surfaces seeded for varying amounts of times with methanol solutions containing 0.25, 0.125, and 0.08% (w/v) NDs.