Protein Viability on Au Nanoparticles during an Electrospray and Electrostatic-Force-Directed Assembly Process

Figure 4

(a) Schematic illustration of the CNTFET biosensor fabrication process. (b) Gate voltage dependence of the normalized drain current 𝐼_𝑑 for a CNTFET treated with Au NP-anti-HRP conjugates, BSA and HRP (𝑉_𝑑=−0.01 V, HRP concentration = 4.5𝐸−5 M). (c) Drain-source voltage dependence of drain current 𝐼_𝑑 for a CNTFET treated with HRP of concentrations ranging from 4.5𝐸−8 M to 4.5𝐸−5 M.

(a)

(b)

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