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Nanowire‐Based Electrochemical Biosensors
Author(s) -
Wanekaya Adam K.,
Chen Wilfred,
Myung Nosang V.,
Mulchandani Ashok
Publication year - 2006
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200503449
Subject(s) - nanotechnology , nanowire , nanosensor , biosensor , materials science , surface modification , silicon nanowires , nanostructure , fabrication , field effect transistor , carbon nanotube , conductive polymer , transistor , polymer , chemistry , electrical engineering , engineering , medicine , alternative medicine , pathology , voltage , composite material
We review recent advances in biosensors based on one‐dimensional (1‐D) nanostructure field‐effect transistors (FET). Specifically, we address the fabrication, functionalization, assembly/alignment and sensing applications of FET based on carbon nanotubes, silicon nanowires and conducting polymer nanowires. The advantages and disadvantages of various fabrication, functionalization, and assembling procedures of these nanosensors are reviewed and discussed. We evaluate how they have been used for detection of various biological molecules and how such devices have enabled the achievement of high sensitivity and selectivity with low detection limits. Finally, we conclude by highlighting some of the challenges researchers face in the 1‐D nanostructures research arena and also predict the direction toward which future research in this area might be directed.