Nano Archive

A novel multivalent nanomaterial based hydrogen peroxide sensor

Mehta, Anjum and Patil, Swanand and Bang, Hyungseok and Cho, Hyoung J. and Seal, Sudipta (2007) A novel multivalent nanomaterial based hydrogen peroxide sensor. Sensors and Actuators A: Physical, 134 (1). 146 - 151.

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Most of the H2O2 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 nm, non-agglomerated 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 1 μM to 30 mM H2O2 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.

Item Type:Article
Additional Information:International Mechanical Engineering congress and Exposition 2005 - IMECE 2005, American Society of Mechanical Engineering International Mechanical Engineering Congress and Exposition
Uncontrolled Keywords:Electrochemical microsensor; Nanoceria; Free radical; Amperometric; Hydrogen peroxide
Subjects:Analytical Science > Nanotechnology for sensing and actuating
Biomedical Science > Nanobiotechnology
Material Science > Nanostructured materials
ID Code:4790
Deposited By:SPI
Deposited On:07 May 2009 10:40
Last Modified:07 May 2009 10:40

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