An organic hydrogel film with micron-sized pillar array for real-time and indicator-free detection of Zn2+

Yu Chiang Chao, Yi Sa Huang, Hsin Ping Wang, Ssu Ming Fu, Chien Hao Huang, Yen Chun Liang, Wen Cheng Yang, Yu Sheng Huang, Gao Fong Chang, Hsiao Wen Zan, Hsin Fei Meng, Chen Hsiung Hung, Chien Chung Fu

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6 Citations (Scopus)

Abstract

A hydrogel sensing film for a real-time and indicator-free detection of Zn2+ is developed by embedding a fluorescent indicator 11,16-bis(phenyl)-6,6,21,21-tetramethyl-m-benzi-6,21-porphodimethene in a hydrogel host poly(2-hydroxyethyl methacrylate). The sensing film shows high stability and selectivity to Zn2+. The sensitivity of the sensing film is increased by fabricating a micron-sized pillar array on the surface of the sensing film to increase the surface area. For Zn2+ concentrations of 10-4 and 10-3 M, the response time is 30 and 3 s, respectively.

Original languageEnglish
Pages (from-to)1899-1902
Number of pages4
JournalOrganic Electronics
Volume12
Issue number11
DOIs
Publication statusPublished - 2011 Nov

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Keywords

  • Hydrogel
  • Indicator-free
  • Real-time
  • Sensor
  • Signaling molecule
  • Zinc

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Chao, Y. C., Huang, Y. S., Wang, H. P., Fu, S. M., Huang, C. H., Liang, Y. C., Yang, W. C., Huang, Y. S., Chang, G. F., Zan, H. W., Meng, H. F., Hung, C. H., & Fu, C. C. (2011). An organic hydrogel film with micron-sized pillar array for real-time and indicator-free detection of Zn2+. Organic Electronics, 12(11), 1899-1902. https://doi.org/10.1016/j.orgel.2011.07.001