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Zinc Oxide Nanostructures as Electrochemical Biosensors on Flexible Substrates

[+] Author Affiliations
Nandhinee Radha Shanmugam, Shalini Prasad

University of Texas at Dallas, Richardson, TX

Sriram Muthukumar

Enlisense LLC, Allen, TX

Paper No. SMASIS2015-9085, pp. V001T01A022; 4 pages
doi:10.1115/SMASIS2015-9085
From:
  • ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems
  • Colorado Springs, Colorado, USA, September 21–23, 2015
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5729-8
  • Copyright © 2015 by ASME

abstract

A novel flexible electrochemical biosensor for protein biomarker detection was successfully designed and fabricated on a nanoporous polyimide membrane using zinc oxide (ZnO). Nanostructures of ZnO were grown on microelectrode platform using aqueous solution bath. Electrochemical measurements were performed using gold, ZnO seed and nanostructured electrodes to study the influence of electrode surface area on biosensing performance. Feasibility analysis of sensor platforms was evaluated using high concentrations (in ng/mL) of troponin-T. The results showed that improved performance can be obtained on nanostructured platform by careful optimization of growth conditions. This study demonstrates the development of nanostructured ZnO flexible biosensors towards ultra-sensitive protein biosensing.

Copyright © 2015 by ASME

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