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Applied Physics Letters / Volume 96 / Issue 22 / BIOPHYSICS AND BIO-INSPIRED SYSTEMS

Appl. Phys. Lett. 96, 223702 (2010); http://dx.doi.org/10.1063/1.3425895 (3 pages)

Real-time and indicator-free detection of aqueous nitric oxide with hydrogel film

Yu-Chiang Chao1, Shih-De Yeh1, Hsiao-Wen Zan2, Gao-Fong Chang3, Hsin-Fei Meng1, Chen-Hsiung Hung4, Tzu-Ching Meng5, Chain-Shu Hsu6, and Sheng-Fu Horng7

1Institute of Physics, National Chiao Tung University, Hsinchu 300, Taiwan
2Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 300, Taiwan
3Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan and Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan
4Institute of Chemistry, Academia Sinica, Taipei 105, Taiwan
5Institute of Biological Chemistry, Academia Sinica, Taipei 105, Taiwan
6Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
7Institute of Electronics Engineering, National Tsing Hua University, Hsinchu 300, Taiwan

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(Received 28 April 2009; accepted 15 April 2010; published online 2 June 2010)

A sensing hydrogel film is demonstrated for real-time and indicator-free detection of nitric oxide (NO) in aqueous solution. The film composed of NO probe 11,16-bisphenyl-6,6,21,21-tetramethyl-m-benzi-6,21-porphodimetheno-chloro-zinc(II) and host polymer poly(2-hydroxyethyl methacrylate). The water-containing nature of this sensing hydrogel film makes the surface area high. The response time is bellow 10 s. This sensing hydrogel film also shows high selectivity, sensitivity, and stability in various pH values.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

chemical sensors, hydrogels, polymer films, thin film sensors

PACS

  • 07.07.Df

    Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing

  • 82.80.-d

    Chemical analysis and related physical methods of analysis

  • 82.70.Gg

    Gels and sols

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3425895

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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