A novel multivalent nanomaterial based hydrogen peroxide sensor

    Authors

    A. Mehta; S. Patil; H. Bang; H. J. Cho;S. Seal

    Comments

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    Abbreviated Journal Title

    Sens. Actuator A-Phys.

    Keywords

    electrochemical microsensor; nanoceria; free radical; amperometric; hydrogen peroxide; AMPEROMETRIC GLUCOSE SENSOR; GENERATION; Engineering, Electrical & Electronic; Instruments & Instrumentation

    Abstract

    Most of the H(2)O(2) biosensors developed till date are based on enzymes and proteins causing them to have a limited lifetime. Moreover, complex procedures are followed for sensor fabrication. Therefore an inorganic material based sensor, with a simple design and longer shelf-life is highly desirable. In this work, an electrochemical microsensor has been designed, fabricated and tested for hydrogen peroxide detection. The 3-5 run, nonagglomerated cerium oxide particles were synthesized and integrated with the microsensor. This greatly increases the sensor lifetime, sensitivity and robustness. The sensor is characterized and tested using samples from I mu M to 30 mM H(2)O(2) range and a linear response is observed. Miniaturization, low detection limits, high sensitivity as well as ease of fabrication are some of the advantages of this work. Same principle could be extended for the detection of other free radicals as well. (c) 2006 Elsevier B.V. All rights reserved.

    Journal Title

    Sensors and Actuators a-Physical

    Volume

    134

    Issue/Number

    1

    Publication Date

    1-1-2007

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    146

    Last Page

    151

    WOS Identifier

    WOS:000245066000017

    ISSN

    0924-4247

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