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Differential Sensing of Serine and Tyrosine with Aligned CdS Nanowire Arrays Based on pH‐Dependent Photoluminescence Behavior
Author(s) -
Lin YiFeng,
Hsu YungJung,
Cheng WeiYun,
Lu ShihYuan
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800663
Subject(s) - photoluminescence , nanowire , tyrosine , serine , nanotechnology , chemistry , materials science , differential (mechanical device) , optoelectronics , phosphorylation , biochemistry , physics , thermodynamics
Up and down: Differential sensing of serine and tyrosine is achieved with aligned CdS nanowire arrays by exploring the pH‐dependent PL behavior of the nanowire arrays toward exposure to the two amino acid solutions (see picture).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.