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

Tae Hyun Kim, Byung Yang Lee, Justyn Jaworski, Keisuke Yokoyama, Woo Jae Chung, Eddie Wang, Seunghun Hong, Arun Majumdar, Seung Wuk Lee

Research output: Contribution to journalArticle

103 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2824-2830
Number of pages7
JournalACS Nano
Volume5
Issue number4
DOIs
Publication statusPublished - 2011 Apr 26
Externally publishedYes

Fingerprint

Trinitrotoluene
trinitrotoluene
biomimetics
Biomimetics
Field effect transistors
Carbon nanotube field effect transistors
field effect transistors
carbon nanotubes
Single-walled carbon nanotubes (SWCN)
sensors
Sensors
Smart sensors
Coatings
Bacteriophages
Nanoelectronics
Aromatic compounds
Conjugated polymers
coatings
Microelectronics
aromatic compounds

Keywords

  • carbon nanotube
  • lipid membrane receptor
  • polydiacetylene
  • TNT sensor
  • trinitrotoluene

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Kim, T. H., Lee, B. Y., Jaworski, J., Yokoyama, K., Chung, W. J., Wang, E., ... Lee, S. W. (2011). Selective and sensitive TNT sensors using biomimetic polydiacetylene-coated CNT-FETs. ACS Nano, 5(4), 2824-2830. https://doi.org/10.1021/nn103324p

Selective and sensitive TNT sensors using biomimetic polydiacetylene-coated CNT-FETs. / Kim, Tae Hyun; Lee, Byung Yang; Jaworski, Justyn; Yokoyama, Keisuke; Chung, Woo Jae; Wang, Eddie; Hong, Seunghun; Majumdar, Arun; Lee, Seung Wuk.

In: ACS Nano, Vol. 5, No. 4, 26.04.2011, p. 2824-2830.

Research output: Contribution to journalArticle

Kim, TH, Lee, BY, Jaworski, J, Yokoyama, K, Chung, WJ, Wang, E, Hong, S, Majumdar, A & Lee, SW 2011, 'Selective and sensitive TNT sensors using biomimetic polydiacetylene-coated CNT-FETs', ACS Nano, vol. 5, no. 4, pp. 2824-2830. https://doi.org/10.1021/nn103324p
Kim, Tae Hyun ; Lee, Byung Yang ; Jaworski, Justyn ; Yokoyama, Keisuke ; Chung, Woo Jae ; Wang, Eddie ; Hong, Seunghun ; Majumdar, Arun ; Lee, Seung Wuk. / Selective and sensitive TNT sensors using biomimetic polydiacetylene-coated CNT-FETs. In: ACS Nano. 2011 ; Vol. 5, No. 4. pp. 2824-2830.
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