A robust VACNF platform for electrochemical biosensor

Khandaker A. Al Mamun; Fahmida S. Tulip; Kimberly Macarthur; Nicole McFarlane; Syed K. Islam; Dale Hensley; Ivan I. Kravchenko

doi:10.1109/ICSENS.2013.6688578

A robust VACNF platform for electrochemical biosensor

Khandaker A. Al Mamun, Fahmida S. Tulip, Kimberly Macarthur, Nicole McFarlane, Syed K. Islam, Dale Hensley, Ivan I. Kravchenko

Nanofabrication Research Laboratory

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

Vertically aligned carbon nanofiber (VACNF) is a promising electrode structure for electrochemical biosensor platform. In this paper, we address the mechanical stability and reusability issues of VACNF arrays. We demonstrate that improvement in mechanical stability requires special attention to surface treatment. We show that a thin SU8 layer on nanofiber forest forms a flexible passive layer at the base of the array and that wet etching works best to remove the passive layer from the VACNF tips. The optimum time for wet etching was found to be 2-3 minutes. We show that SU8 treated VACNF arrays have improved signal-to-noise response compared to the untreated bare VACNF arrays.

Original language	English
Title of host publication	IEEE SENSORS 2013 - Proceedings
Publisher	IEEE Computer Society
ISBN (Print)	9781467346405
DOIs	https://doi.org/10.1109/ICSENS.2013.6688578
State	Published - 2013
Event	12th IEEE SENSORS 2013 Conference - Baltimore, MD, United States Duration: Nov 4 2013 → Nov 6 2013

Publication series

Name	Proceedings of IEEE Sensors

Conference

Conference	12th IEEE SENSORS 2013 Conference
Country/Territory	United States
City	Baltimore, MD
Period	11/4/13 → 11/6/13

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10.1109/ICSENS.2013.6688578

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@inproceedings{a5c788cfd1da42fe88f78f7f2dbc7a08,

title = "A robust VACNF platform for electrochemical biosensor",

abstract = "Vertically aligned carbon nanofiber (VACNF) is a promising electrode structure for electrochemical biosensor platform. In this paper, we address the mechanical stability and reusability issues of VACNF arrays. We demonstrate that improvement in mechanical stability requires special attention to surface treatment. We show that a thin SU8 layer on nanofiber forest forms a flexible passive layer at the base of the array and that wet etching works best to remove the passive layer from the VACNF tips. The optimum time for wet etching was found to be 2-3 minutes. We show that SU8 treated VACNF arrays have improved signal-to-noise response compared to the untreated bare VACNF arrays.",

author = "{Al Mamun}, {Khandaker A.} and Tulip, {Fahmida S.} and Kimberly Macarthur and Nicole McFarlane and Islam, {Syed K.} and Dale Hensley and Kravchenko, {Ivan I.}",

year = "2013",

doi = "10.1109/ICSENS.2013.6688578",

language = "English",

isbn = "9781467346405",

series = "Proceedings of IEEE Sensors",

publisher = "IEEE Computer Society",

booktitle = "IEEE SENSORS 2013 - Proceedings",

note = "12th IEEE SENSORS 2013 Conference ; Conference date: 04-11-2013 Through 06-11-2013",

}

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T1 - A robust VACNF platform for electrochemical biosensor

AU - Al Mamun, Khandaker A.

AU - Tulip, Fahmida S.

AU - Macarthur, Kimberly

AU - McFarlane, Nicole

AU - Islam, Syed K.

AU - Hensley, Dale

AU - Kravchenko, Ivan I.

PY - 2013

Y1 - 2013

N2 - Vertically aligned carbon nanofiber (VACNF) is a promising electrode structure for electrochemical biosensor platform. In this paper, we address the mechanical stability and reusability issues of VACNF arrays. We demonstrate that improvement in mechanical stability requires special attention to surface treatment. We show that a thin SU8 layer on nanofiber forest forms a flexible passive layer at the base of the array and that wet etching works best to remove the passive layer from the VACNF tips. The optimum time for wet etching was found to be 2-3 minutes. We show that SU8 treated VACNF arrays have improved signal-to-noise response compared to the untreated bare VACNF arrays.

AB - Vertically aligned carbon nanofiber (VACNF) is a promising electrode structure for electrochemical biosensor platform. In this paper, we address the mechanical stability and reusability issues of VACNF arrays. We demonstrate that improvement in mechanical stability requires special attention to surface treatment. We show that a thin SU8 layer on nanofiber forest forms a flexible passive layer at the base of the array and that wet etching works best to remove the passive layer from the VACNF tips. The optimum time for wet etching was found to be 2-3 minutes. We show that SU8 treated VACNF arrays have improved signal-to-noise response compared to the untreated bare VACNF arrays.

UR - http://www.scopus.com/inward/record.url?scp=84893973934&partnerID=8YFLogxK

U2 - 10.1109/ICSENS.2013.6688578

DO - 10.1109/ICSENS.2013.6688578

M3 - Conference contribution

AN - SCOPUS:84893973934

SN - 9781467346405

T3 - Proceedings of IEEE Sensors

BT - IEEE SENSORS 2013 - Proceedings

PB - IEEE Computer Society

T2 - 12th IEEE SENSORS 2013 Conference

Y2 - 4 November 2013 through 6 November 2013

ER -

A robust VACNF platform for electrochemical biosensor

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