Differential sensing of serine and tyrosine with aligned CdS nanowire arrays based on pH-dependent photoluminescence behavior.
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.
Lin
Yi-Feng
YF
Department of Chemical Engineering, National Tsing-Hua University, Hsinchu 30013, Taiwan, ROC.
Hsu
Yung-Jung
YJ
Cheng
Wei-Yun
WY
Lu
Shih-Yuan
SY
D019187:Cadmium Compounds / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D049449:Luminescence; D046529:Microscopy, Electron, Transmission; D053770:Nanowires / Q000737:chemistry*; D012694:Serine / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry*; D014443:Tyrosine / Q000737:chemistry*
D019187:Cadmium Compounds; D013431:Sulfates; D014443:Tyrosine; D012694:Serine; C037123:cadmium sulfate