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. Author manuscript; available in PMC: 2010 Aug 3.
Published in final edited form as: Small. 2009 Aug 3;5(15):1784–1790. doi: 10.1002/smll.200900369

Table 1.

Parameters measured by surface characterization of DDPpy electrode.

Polymerization time
(s)		 Particle diameter (nm) Surface coverage
(%)		 Surface concentration
(pmol/cm2)[a]
50 40 0.5 0.02
150 62 5.5 0.24
300 78 8.5 0.35
500 70 35.2 1.21
[a]

The surface concentration is calculated by the surface coverage percentage and the average particle size under the assumption of monolayer for DDPpy film. This assumption is supported by the 50 nm film thickness (see supporting material for detail).