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Selective and sensitive TNT sensors using biomimetic polydiacetylene-coated CNT-FETs.

Content Provider	Semantic Scholar
Author	Kim, Tae Hyun Lee, Byung Yang Jaworski, Justyn Wayne Yokoyama, Keisuke Chung, Woo-Jae Wang, Eddie Seunghun Majumdar, Arun Lee, Seung-Wuk
Copyright Year	2011
Abstract	Miniaturized smart sensors that can perform sensitive and selective real-time monitoring of target analytes are tremendously valuable for various sensing applications. We developed selective nanocoatings by combining trinitrotoluene (TNT) receptors bound to conjugated polydiacetylene (PDA) polymers with single-walled carbon nanotube field-effect transistors (SWNT-FET). Selective binding events between the TNT molecules and phage display derived TNT receptors were effectively transduced to sensitive SWNT-FET conductance sensors through the PDA coating layers. The resulting sensors exhibited an unprecedented 1 fM sensitivity toward TNT in real time, with excellent selectivity over various similar aromatic compounds. Our biomimetic receptor coating approach may be useful for the development of sensitive and selective micro- and nanoelectronic sensor devices for various other target analytes.
Starting Page	55
Ending Page	56
Page Count	2
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://leelab.berkeley.edu/publications/2011-Kim-ACSnano.pdf
PubMed reference number	21361351v1
Alternate Webpage(s)	https://doi.org/10.1021/nn103324p
DOI	10.1021/nn103324p
Journal	ACS nano
Volume Number	5
Issue Number	4
Language	English
Access Restriction	Open
Subject Keyword	Biomimetics Coating Excipient Heterocyclic Compounds, 3-Ring Immunostimulating conjugate (antigen) Nanotubes Nanotubes, Carbon Phage Display Single-Walled Nanotube Trinitrotoluene analyte anatomical layer polydiacetylene sensor (device)
Content Type	Text
Resource Type	Article

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