Figure 6.
Scanning electron microscopy (SEM) images of silica nanorods with aspect ratios of A: 4.5 ± 0.9; B: 8.0 ± 1.0; C: 9.4 ± 0.7; D:1.2 ± 0.5; E:1.1 ± 0.1; and F: 3.1 ± 0.3. Reproduced with permission.[41] Copyright 2013, Wiley-VCH.
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