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ZnO Nanowires for Gas and Bio-Chemical Sensing

Chapter
Part of the Integrated Analytical Systems book series (ANASYS)

Abstract

There has been significant recent interest in the use of surface-functionalized thin film and nanowire ZnO for sensing of gases, heavy metals, UV photons and biological molecules. For the detection of gases such as hydrogen, the ZnO is typically coated with a catalyst metal such as Pd or Pt to increase the detection sensitivity at room temperature. Functionalizing the surface with oxides, polymers and nitrides is also useful in enhancing the detection sensitivity for gases and ionic solutions. The use of enzymes or adsorbed antibody layers on the ZnO surface leads to highly specific detection of a broad range of antigens of interest in the medical and homeland security fields. We give examples of recent work showing sensitive detection of glucose and lactic acid and the integration of the sensors with wireless data transmission systems to achieve robust, portable sensors.

Keywords

Drain Current Exhale Breath Condensate Lactic Acid Concentration Gate Area Hydrogen Exposure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The work at UF was partially supported by ONR Grant N000140710982 monitored by Igor Vodyanoy, and the State of Florida, Center of Excellence in Nano-Bio Sensors.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Stephen J. Pearton
    • 1
  • David P. Norton
    • 1
  • Fan Ren
    • 2
  1. 1.Department of Materials Science and EngineeringUniversity of FloridaGainesvilleUSA
  2. 2.Department of Chemical EngineeringUniversity of FloridaGainesvilleUSA

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