Nanowires Interfaced with Electrodes as an Immobilization Matrix

2 Nanowires Interfaced with Electrodes as an Immobilization Matrix 

Gold nanowire arrays were also used by Andreu and coworkers for DNA detection [45]. Anodic aluminum oxide membranes were used as templates for galvanostatic Au electrodeposition followed by treatment in base to dissolve away the template leaving freestanding gold nanowires 330 nm in diameter and 2 fim in length. [Ru(NH3)6] + was used to measure charge before and after 

The use of conducting polyaniline nanowire-modified electrodes for electrochemical DNA detection has also been reported. Zhu etal. 

The first use of vertically aligned conducting diamond nanowires for electrochemical DNA detection was also recently reported 

Multisegment CdTe-Au-CdTe nanowires have also been used for FET-based sensing of DNA [53], Synthesized by consecutive electrodeposition onto an anodized alumina template these metal-semiconductor nanowires exhibit a p-type behavior. Thiol-terminated ssDNA probes were bound via Au-thiol interaction to the Au segment of the nanowires. Target DNA could be detected at 1 fiM and higher concentrations. 

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