Nanofiber mats from DNA, SWNTs, and poly(ethylene oxide) and their application in glucose biosensors

Yong Liu; Jun Chen; Nguyen Tuan Anh; Chee O. Too; Violeta Misoska; Gordon G. Wallace

doi:10.1149/1.2890417

Nanofiber mats from DNA, SWNTs, and poly(ethylene oxide) and their application in glucose biosensors

Yong Liu^*, Jun Chen, Nguyen Tuan Anh, Chee O. Too, Violeta Misoska, Gordon G. Wallace

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

Ultrafine fibers with diameters ranging from 50 to 300 nm were prepared from DNA/single-walled carbon nanotubes (SWNTs)/poly(ethylene oxide) blended dispersion. Well-defined electrospun fibers were obtained by good control of key dispersion properties related to electrospinning, such as ionic conductivity, surface tension, and viscosity. Raman spectroscopy confirmed the presence of SWNT in the resulting fibers, indicating good interaction between DNA and SWNT. The resulting fibers also exhibited electroactive behavior and could be used as an immobilization matrix for a glucose oxidase enzyme biosensor. The sensor response was linear up to 20 mM glucose with a sensitivity of 2.4 mA cm-2 M-1.

Original language	English
Pages (from-to)	K100-K103
Number of pages	4
Journal	Journal of the Electrochemical Society
Volume	155
Issue number	5
DOIs	https://doi.org/10.1149/1.2890417
Publication status	Published - 2008

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abstract = "Ultrafine fibers with diameters ranging from 50 to 300 nm were prepared from DNA/single-walled carbon nanotubes (SWNTs)/poly(ethylene oxide) blended dispersion. Well-defined electrospun fibers were obtained by good control of key dispersion properties related to electrospinning, such as ionic conductivity, surface tension, and viscosity. Raman spectroscopy confirmed the presence of SWNT in the resulting fibers, indicating good interaction between DNA and SWNT. The resulting fibers also exhibited electroactive behavior and could be used as an immobilization matrix for a glucose oxidase enzyme biosensor. The sensor response was linear up to 20 mM glucose with a sensitivity of 2.4 mA cm-2 M-1.",

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AU - Liu, Yong

AU - Chen, Jun

AU - Anh, Nguyen Tuan

AU - Too, Chee O.

AU - Misoska, Violeta

AU - Wallace, Gordon G.

PY - 2008

Y1 - 2008

N2 - Ultrafine fibers with diameters ranging from 50 to 300 nm were prepared from DNA/single-walled carbon nanotubes (SWNTs)/poly(ethylene oxide) blended dispersion. Well-defined electrospun fibers were obtained by good control of key dispersion properties related to electrospinning, such as ionic conductivity, surface tension, and viscosity. Raman spectroscopy confirmed the presence of SWNT in the resulting fibers, indicating good interaction between DNA and SWNT. The resulting fibers also exhibited electroactive behavior and could be used as an immobilization matrix for a glucose oxidase enzyme biosensor. The sensor response was linear up to 20 mM glucose with a sensitivity of 2.4 mA cm-2 M-1.

AB - Ultrafine fibers with diameters ranging from 50 to 300 nm were prepared from DNA/single-walled carbon nanotubes (SWNTs)/poly(ethylene oxide) blended dispersion. Well-defined electrospun fibers were obtained by good control of key dispersion properties related to electrospinning, such as ionic conductivity, surface tension, and viscosity. Raman spectroscopy confirmed the presence of SWNT in the resulting fibers, indicating good interaction between DNA and SWNT. The resulting fibers also exhibited electroactive behavior and could be used as an immobilization matrix for a glucose oxidase enzyme biosensor. The sensor response was linear up to 20 mM glucose with a sensitivity of 2.4 mA cm-2 M-1.

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Nanofiber mats from DNA, SWNTs, and poly(ethylene oxide) and their application in glucose biosensors

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