BioMed Research International / 2012 / Article / Fig 4

Research Article

Electric-Field-Directed Self-Assembly of Active Enzyme-Nanoparticle Structures

Figure 4

ESEM images of a microelectrode in each region (A), (B), and (C) after enzyme-NP assembly. Top row: microelectrodes after assembling 31 total alternating layers of 200 nm biotin NPs and streptavidin-AP. Bottom row: microelectrodes after assembling 21 layers of 40 nm biotin NPs and streptavidin-AP.

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