Figure 4.

AFM images of NP-DNA complex. (a) Height image (below is the corresponding topographic height profile along the blue line), (b) phase image, and (c) 3D rendering of AFM images of NP-DNA complex in (b).

Wang et al. Nanoscale Research Letters 2013 8:127   doi:10.1186/1556-276X-8-127
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