Differential sensing of serine and tyrosine with aligned CdS nanowire arrays based on pH-dependent photoluminescence behavior

Yi Feng Lin, Yung-Jung Hsu, Wei Yun Cheng, Shih Yuan Lu*

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

The differential sensing of tyrosine and serine is achieved with well-aligned CdS nanowire arrays by exploring the pH-dependent photoluminescence behavior of the nanowire arrays toward exposure to the two amino acid solutions. The contrasting trend in photoluminescence (PL) intensity with respect to variations in analyte concentration observed at pH 11 served as the check point for the present differential sensing. The application format of the nanowire array is better suited for further sensing device assembly than that of nanocrystal suspensions.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalChemPhysChem
Volume10
Issue number4
DOIs
StatePublished - 9 Mar 2009

Keywords

  • Amino acids
  • CdS
  • Differential sensing
  • Nanostructures
  • Photophysics

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