Heme-enabled electrical detection of carbon monoxide at room temperature using networked carbon nanotube field-effect transistors

Xiaochen Dong; Dongliang Fu; Moawia O. Ahmed; Yumeng Shi; S. G. Mhaisalkar; Sam Zhang; Shabbir Moochhala; Xinning Ho; John A. Rogers; Lain Jong Li

doi:10.1021/cm702725p

Heme-enabled electrical detection of carbon monoxide at room temperature using networked carbon nanotube field-effect transistors

Xiaochen Dong, Dongliang Fu, Moawia O. Ahmed, Yumeng Shi, S. G. Mhaisalkar, Sam Zhang, Shabbir Moochhala, Xinning Ho, John A. Rogers, Lain Jong Li^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Thiolated heme molecules-enabled electric detection of carbon monoxide at room temperature using single-walled carbon nanotubes (SWNT) network field-effect transistors (SNFET) was used to detect the change of drain current upon exposure to 4.9 ppm of CO. SNFET were fabricated in a top contact device geometry, where a highly p-doped silicon wafer with an 100-nm-thick SiO ₂ layer was used as a back gate. No significant drain current response is observed for the Au-SNFET after the gas flow is switched from N ₂ to CO. The thiolated heme-modified Cr-SNFET could be reused for up to 40 cycles of N₂-CO testing without any deterioration in the sensing response. The results show that for he-Cr-SNFET, the drain current is decreased and there is a small negative shift in threshold voltage while switching from N₂ to 4.9 ppm of CO.

Original language	English (US)
Pages (from-to)	6059-6061
Number of pages	3
Journal	Chemistry of Materials
Volume	19
Issue number	25
DOIs	https://doi.org/10.1021/cm702725p
State	Published - Dec 11 2007
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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10.1021/cm702725p

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@article{e4cb60142b1b4cab9e9fec583e1331fd,

title = "Heme-enabled electrical detection of carbon monoxide at room temperature using networked carbon nanotube field-effect transistors",

abstract = "Thiolated heme molecules-enabled electric detection of carbon monoxide at room temperature using single-walled carbon nanotubes (SWNT) network field-effect transistors (SNFET) was used to detect the change of drain current upon exposure to 4.9 ppm of CO. SNFET were fabricated in a top contact device geometry, where a highly p-doped silicon wafer with an 100-nm-thick SiO 2 layer was used as a back gate. No significant drain current response is observed for the Au-SNFET after the gas flow is switched from N 2 to CO. The thiolated heme-modified Cr-SNFET could be reused for up to 40 cycles of N2-CO testing without any deterioration in the sensing response. The results show that for he-Cr-SNFET, the drain current is decreased and there is a small negative shift in threshold voltage while switching from N2 to 4.9 ppm of CO.",

author = "Xiaochen Dong and Dongliang Fu and Ahmed, {Moawia O.} and Yumeng Shi and Mhaisalkar, {S. G.} and Sam Zhang and Shabbir Moochhala and Xinning Ho and Rogers, {John A.} and Li, {Lain Jong}",

year = "2007",

month = dec,

day = "11",

doi = "10.1021/cm702725p",

language = "English (US)",

volume = "19",

pages = "6059--6061",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "AMER CHEMICAL SOC",

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TY - JOUR

T1 - Heme-enabled electrical detection of carbon monoxide at room temperature using networked carbon nanotube field-effect transistors

AU - Dong, Xiaochen

AU - Fu, Dongliang

AU - Ahmed, Moawia O.

AU - Shi, Yumeng

AU - Mhaisalkar, S. G.

AU - Zhang, Sam

AU - Moochhala, Shabbir

AU - Ho, Xinning

AU - Rogers, John A.

AU - Li, Lain Jong

PY - 2007/12/11

Y1 - 2007/12/11

N2 - Thiolated heme molecules-enabled electric detection of carbon monoxide at room temperature using single-walled carbon nanotubes (SWNT) network field-effect transistors (SNFET) was used to detect the change of drain current upon exposure to 4.9 ppm of CO. SNFET were fabricated in a top contact device geometry, where a highly p-doped silicon wafer with an 100-nm-thick SiO 2 layer was used as a back gate. No significant drain current response is observed for the Au-SNFET after the gas flow is switched from N 2 to CO. The thiolated heme-modified Cr-SNFET could be reused for up to 40 cycles of N2-CO testing without any deterioration in the sensing response. The results show that for he-Cr-SNFET, the drain current is decreased and there is a small negative shift in threshold voltage while switching from N2 to 4.9 ppm of CO.

AB - Thiolated heme molecules-enabled electric detection of carbon monoxide at room temperature using single-walled carbon nanotubes (SWNT) network field-effect transistors (SNFET) was used to detect the change of drain current upon exposure to 4.9 ppm of CO. SNFET were fabricated in a top contact device geometry, where a highly p-doped silicon wafer with an 100-nm-thick SiO 2 layer was used as a back gate. No significant drain current response is observed for the Au-SNFET after the gas flow is switched from N 2 to CO. The thiolated heme-modified Cr-SNFET could be reused for up to 40 cycles of N2-CO testing without any deterioration in the sensing response. The results show that for he-Cr-SNFET, the drain current is decreased and there is a small negative shift in threshold voltage while switching from N2 to 4.9 ppm of CO.

UR - http://www.scopus.com/inward/record.url?scp=38049100796&partnerID=8YFLogxK

U2 - 10.1021/cm702725p

DO - 10.1021/cm702725p

M3 - Article

AN - SCOPUS:38049100796

SN - 0897-4756

VL - 19

SP - 6059

EP - 6061

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 25

ER -

Heme-enabled electrical detection of carbon monoxide at room temperature using networked carbon nanotube field-effect transistors

Abstract

ASJC Scopus subject areas

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