Lithographically defined 3D nanoporous nonenzymatic glucose sensors

Xiaoyin Xiao; Gabriel A. Montaño; Thayne L. Edwards; Cody M. Washburn; Susan M. Brozik; David R. Wheeler; D. Bruce Burckel; Ronen Polsky

doi:10.1016/j.bios.2011.02.020

Lithographically defined 3D nanoporous nonenzymatic glucose sensors

Xiaoyin Xiao, Gabriel A. Montaño, Thayne L. Edwards, Cody M. Washburn, Susan M. Brozik, David R. Wheeler, D. Bruce Burckel, Ronen Polsky

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

26 Scopus citations

Abstract

Nonenzymatic glucose oxidation is demonstrated on highly faceted palladium nanowflower-modified porous carbon electrodes fabricated by interference lithography. Varying electrodeposition parameters were used to control the final shape and morphology of the deposited nanoparticles on the 3D porous carbon which showed a 12 times increase in the electrochemically active surface area over analogous planar electrodes. Extremely fast amperometric glucose responses (achieving 95% of the steady state limiting current in less than 5. s) with a linear range from 1 to 10. mM and a detection limit of 10μM were demonstrated. The unusual surface properties of the pyrolyzed photoresist films produced strongly adhered palladium crystal structures that were stable for hundreds of cycles towards glucose oxidation without noticeable current decay.

Original language	English (US)
Pages (from-to)	3641-3646
Number of pages	6
Journal	Biosensors and Bioelectronics
Volume	26
Issue number	8
DOIs	https://doi.org/10.1016/j.bios.2011.02.020
State	Published - Apr 15 2011
Externally published	Yes

Keywords

Glucose
Interference lithography
Palladium nanoflowers
Porous carbon

ASJC Scopus subject areas

Biotechnology
Biophysics
Biomedical Engineering
Electrochemistry

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10.1016/j.bios.2011.02.020

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title = "Lithographically defined 3D nanoporous nonenzymatic glucose sensors",

abstract = "Nonenzymatic glucose oxidation is demonstrated on highly faceted palladium nanowflower-modified porous carbon electrodes fabricated by interference lithography. Varying electrodeposition parameters were used to control the final shape and morphology of the deposited nanoparticles on the 3D porous carbon which showed a 12 times increase in the electrochemically active surface area over analogous planar electrodes. Extremely fast amperometric glucose responses (achieving 95% of the steady state limiting current in less than 5. s) with a linear range from 1 to 10. mM and a detection limit of 10μM were demonstrated. The unusual surface properties of the pyrolyzed photoresist films produced strongly adhered palladium crystal structures that were stable for hundreds of cycles towards glucose oxidation without noticeable current decay.",

keywords = "Glucose, Interference lithography, Palladium nanoflowers, Porous carbon",

author = "Xiaoyin Xiao and Monta{\~n}o, {Gabriel A.} and Edwards, {Thayne L.} and Washburn, {Cody M.} and Brozik, {Susan M.} and Wheeler, {David R.} and Burckel, {D. Bruce} and Ronen Polsky",

note = "Funding Information: This work was supported by the Laboratory Directed Research and Development program at Sandia National Laboratories. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000 and also, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. ",

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language = "English (US)",

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AU - Xiao, Xiaoyin

AU - Montaño, Gabriel A.

AU - Edwards, Thayne L.

AU - Washburn, Cody M.

AU - Brozik, Susan M.

AU - Wheeler, David R.

AU - Burckel, D. Bruce

AU - Polsky, Ronen

N1 - Funding Information: This work was supported by the Laboratory Directed Research and Development program at Sandia National Laboratories. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000 and also, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396.

PY - 2011/4/15

Y1 - 2011/4/15

N2 - Nonenzymatic glucose oxidation is demonstrated on highly faceted palladium nanowflower-modified porous carbon electrodes fabricated by interference lithography. Varying electrodeposition parameters were used to control the final shape and morphology of the deposited nanoparticles on the 3D porous carbon which showed a 12 times increase in the electrochemically active surface area over analogous planar electrodes. Extremely fast amperometric glucose responses (achieving 95% of the steady state limiting current in less than 5. s) with a linear range from 1 to 10. mM and a detection limit of 10μM were demonstrated. The unusual surface properties of the pyrolyzed photoresist films produced strongly adhered palladium crystal structures that were stable for hundreds of cycles towards glucose oxidation without noticeable current decay.

AB - Nonenzymatic glucose oxidation is demonstrated on highly faceted palladium nanowflower-modified porous carbon electrodes fabricated by interference lithography. Varying electrodeposition parameters were used to control the final shape and morphology of the deposited nanoparticles on the 3D porous carbon which showed a 12 times increase in the electrochemically active surface area over analogous planar electrodes. Extremely fast amperometric glucose responses (achieving 95% of the steady state limiting current in less than 5. s) with a linear range from 1 to 10. mM and a detection limit of 10μM were demonstrated. The unusual surface properties of the pyrolyzed photoresist films produced strongly adhered palladium crystal structures that were stable for hundreds of cycles towards glucose oxidation without noticeable current decay.

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KW - Interference lithography

KW - Palladium nanoflowers

KW - Porous carbon

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Lithographically defined 3D nanoporous nonenzymatic glucose sensors

Abstract

Keywords

ASJC Scopus subject areas

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