Biosensor Nanomaterials - download pdf or read online

By Songjun Li, Jagdish Singh, He Li, Ipsita A. Banerjee

ISBN-10: 3527328416

ISBN-13: 9783527328413

Targeting the fabrics compatible for biosensor purposes, comparable to nanoparticles, quantum dots, meso- and nanoporous fabrics and nanotubes, this article permits the reader to arrange the respective nanomaterials to be used in real units through applicable functionalization, floor processing or directed self-assembly. the most detection equipment used are electrochemical, optical, and mechanical, supplying suggestions to not easy tasks.The result's a reference for researchers and builders, disseminating first-hand details on which nanomaterial is most suitable to a selected software -- and why.

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3 Conductive Polymer Nanostructures sitivity comparable with florescence-based DNA microarray techniques (hundreds of hybridized targets per spot) [83]. Recently, this method has been further developed [84] by coupling optical and electron beam lithography with CVD in order to obtain a chip formed of nine individually addressable arrays of vertically aligned carbon nanofibers. Thanks to the combination of the three techniques, nanofibers were precisely grown on 100-nm nickel dots deposited with 1-μm spacing on each of the nine micro pads that formed the array.

Conductance changes after the hybridization with different amounts of complementary DNA sequence were measured by depositing functionalized fibers on gold pads and high sensitivity at low analyte concentration was obtained (1 nM). Moreover, this particular sensor design showed promise for future application as a nanosensor and for lab-on-a-chip technology, due the possibility of manipulating and contacting a single nanofiber to act as sensor. In 2006, Zhu et al. [117] fabricated PANI nanowires and modified them with oligonucleotides probes for DNA hybridization detection.

A significant improvement was demonstrated in the amperometric responses compared to analogous nonnanostructured PPy films created on indium/tin oxide (ITO) electrodes. Carboxylated PPy monomers were also employed by Shamsipur et al. [92] in order to obtain cauliflower-like nanostructures by electropolymerization on platinum disks. 25 μM), and stability. A higher sensitivity was obtained by Lupu et al. [93] using a new sensor platform based on nanoarrays of PPy nanopillars, obtained using nanosphere lithography.

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Biosensor Nanomaterials by Songjun Li, Jagdish Singh, He Li, Ipsita A. Banerjee


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