A fluorescent chemosensor array for the detection of sulfur-containing amino acids

Abstract

We herein report a chemosensor array for the detection of sulfur-containing amino acids （SCAAs） that play crucial roles in maintaining the homeostasis of organisms in our bodies. The chemosensor array was fabricated using two offthe-shelf coumarin dyes and a zinc（II） ion, which showed various optical changes by adding SCAAs. With pattern recognition techniques, the chemosensor array succeeded in the simultaneous multi-SCAAs recognition and the quantitative detection of SCAA in human blood serum. We believe that the proposed chemosensor array could be used as an easy-to-handle analytical method for biological samples.