Preparation and fluorescent sensing applications of novel CdSe-chitosan hybrid films

  • Huiyun Xia
  • , Gang He
  • , Junxia Peng
  • , Weiwei Li
  • , Yu Fang

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A novel CdSe-chitosan hybrid fluorescent film has been fabricated by dipping a chitosan film containing Cd(Ac) 2 into NaHSe aqueous solution under a nitrogen atmosphere at room temperature. It has been demonstrated that utilization of a chitosan film as a substrate prohibits the aggregation of the as formed CdSe micro-nano-particles, and enhances the sensing performance of the inorganic-organic hybrid film. It has been also revealed that the amount of CdSe embedded in the hybrid film can be altered by varying the initial concentration of Cd(Ac) 2 . Importantly, the photoluminescence emission of the hybrid film is selectively sensitive to the presence of polyamines. Furthermore, the response is reversible. Accordingly, it is anticipated that the film may be developed into a polyamine sensor. Crown

Original languageEnglish
Pages (from-to)7270-7275
Number of pages6
JournalApplied Surface Science
Volume256
Issue number23
DOIs
StatePublished - 15 Sep 2010
Externally publishedYes

Keywords

  • CdSe
  • Chitosan
  • Fluorescence sensing
  • Hybrid films
  • Polyamines

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