Electrochemistry in nanovials fabricated by combining screen printing and laser micromachining

J. Christopher Ball; Donna L. Scott; Janet K. Lumpp; Sylvia Daunert; Joseph Wang; Leonidas G. Bachas

doi:10.1021/ac991163c

Electrochemistry in nanovials fabricated by combining screen printing and laser micromachining

J. Christopher Ball, Donna L. Scott, Janet K. Lumpp, Sylvia Daunert, Joseph Wang, Leonidas G. Bachas

Electrical and Computer Engineering

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

53 Scopus citations

Abstract

The coupling of screen-printing and laser micromachining technology has been used to create a nanovial with "built-in" working and reference electrodes. The volume of the nanovial was calculated to be 7.2 nL using dimensions determined by SEM. The electrochemical nanovial was characterized using the ferri/ferrocyanide redox couple. Cyclic voltammetry and chronoamperometry experiments were performed with electrochemical nanovials utilizing 5% (v/v) glycerin in the solutions and a humidified headspace to control evaporation of the small-volume samples. Chronoamperometry experiments gave results consistent with a diffusion-limited process and revealed a working electrode surface area of 2.6 × 10⁴ μm². The ultrasmall-volume cells represent a simple, reliable, low-cost approach for the fabrication of complete electrochemical nanovials.

Original language	English
Pages (from-to)	497-501
Number of pages	5
Journal	Analytical Chemistry
Volume	72
Issue number	3
DOIs	https://doi.org/10.1021/ac991163c
State	Published - Feb 1 2000

ASJC Scopus subject areas

Analytical Chemistry

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abstract = "The coupling of screen-printing and laser micromachining technology has been used to create a nanovial with {"}built-in{"} working and reference electrodes. The volume of the nanovial was calculated to be 7.2 nL using dimensions determined by SEM. The electrochemical nanovial was characterized using the ferri/ferrocyanide redox couple. Cyclic voltammetry and chronoamperometry experiments were performed with electrochemical nanovials utilizing 5% (v/v) glycerin in the solutions and a humidified headspace to control evaporation of the small-volume samples. Chronoamperometry experiments gave results consistent with a diffusion-limited process and revealed a working electrode surface area of 2.6 × 104 μm2. The ultrasmall-volume cells represent a simple, reliable, low-cost approach for the fabrication of complete electrochemical nanovials.",

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AU - Ball, J. Christopher

AU - Scott, Donna L.

AU - Lumpp, Janet K.

AU - Daunert, Sylvia

AU - Wang, Joseph

AU - Bachas, Leonidas G.

PY - 2000/2/1

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N2 - The coupling of screen-printing and laser micromachining technology has been used to create a nanovial with "built-in" working and reference electrodes. The volume of the nanovial was calculated to be 7.2 nL using dimensions determined by SEM. The electrochemical nanovial was characterized using the ferri/ferrocyanide redox couple. Cyclic voltammetry and chronoamperometry experiments were performed with electrochemical nanovials utilizing 5% (v/v) glycerin in the solutions and a humidified headspace to control evaporation of the small-volume samples. Chronoamperometry experiments gave results consistent with a diffusion-limited process and revealed a working electrode surface area of 2.6 × 104 μm2. The ultrasmall-volume cells represent a simple, reliable, low-cost approach for the fabrication of complete electrochemical nanovials.

AB - The coupling of screen-printing and laser micromachining technology has been used to create a nanovial with "built-in" working and reference electrodes. The volume of the nanovial was calculated to be 7.2 nL using dimensions determined by SEM. The electrochemical nanovial was characterized using the ferri/ferrocyanide redox couple. Cyclic voltammetry and chronoamperometry experiments were performed with electrochemical nanovials utilizing 5% (v/v) glycerin in the solutions and a humidified headspace to control evaporation of the small-volume samples. Chronoamperometry experiments gave results consistent with a diffusion-limited process and revealed a working electrode surface area of 2.6 × 104 μm2. The ultrasmall-volume cells represent a simple, reliable, low-cost approach for the fabrication of complete electrochemical nanovials.

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Electrochemistry in nanovials fabricated by combining screen printing and laser micromachining

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