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Selectively colorimetric detection of cysteine with triangular silver nanoprisms
Authors:Tong Wua  Yuan Fang Lia  Cheng Zhi Huang a College of Pharmaceutical Sciences  MOE Key Laboratory on Luminescence  Real-Time Analysis  Southwest University  Chongqing  PR China b College of Chemistry  Chemical Engineering  PR China
Institution:a College of Pharmaceutical Sciences, MOE Key Laboratory on Luminescence and Real-Time Analysis, Southwest University, Chongqing 400715, PR China;b College of Chemistry and Chemical Engineering, MOE Key Laboratory on Luminescence and Real-Time Analysis, Southwest University, Chongqing 400715, PR China
Abstract:Triangular silver nanoprisms were prepared and applied to make colorimetric detection of cysteine based on our findings that cysteine could lead to the blue shift of the dipole plasmon resonance absorption,but other 19 kinds of natural amino acids could not.Cysteine with a concentration 160 nmol/L can result in a color change that can be discerned with naked eyes.
Keywords:Triangular silver nanoprisms  Cysteine  Colorimetrie detection
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