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. Author manuscript; available in PMC: 2012 Aug 16.
Published in final edited form as: Langmuir. 2011 Feb 16;27(6):2739–2746. doi: 10.1021/la104313z

Figure 4.

Figure 4

Localization of pDNA on modified surfaces. The samples were prepared by treating SAM-modified gold-coated glass surfaces with 0.1 μg/μL DPP [(A) and (B)] or 0.1 μg/μL pDNA [(C) and (D)] followed by staining with YOYO®-1 Iodide. (A) and (C) The surface modifications observed by AFM imaging. (B) and (D) The fluorescent features observed by confocal microscopy. Color-coded height scale [shown in (A)] = 100 nm and scale bar [shown in (B)] = 10 μm. Each sample was prepared and analyzed 10 times with representative images shown.