Fabrication of biocompatible Zn-cysteine nanowires and their application in selective fluorescence detection of Cu2+.
Novel Zn-cysteine complex nanowires were successfully fabricated by a facile self-assembly method at room temperature. They were innovatively used as fluorescence probes for the detecting of Cu2+, one of the most important physiological ions related with the neurobiology and general cell biology. A high fluorescence response was obtained, with a detecting limit of 2.1 x 10(-6) mol/L. This work offers a simple and quick strategy to fabricate analytic tools. As-synthesized probes have the advantages of high sensitivity, selectivity and good biocompatibility. They show promising applications as biological probes and assembled ion responsive devices.
Research Center of Materials Science, Beijing Institute of Technology, Beijing 100081, PR China.
Xiaoqiang
X
An
Chuanbao
C
Cao
Xuelian
X
Yu
D000042:Absorption; D001672:Biocompatible Materials / Q000138:chemical synthesis* / Q000737:chemistry; D002413:Cations, Divalent / Q000032:analysis; D003300:Copper / Q000032:analysis*; D003545:Cysteine / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D053770:Nanowires / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013055:Spectrophotometry, Infrared; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction; D015032:Zinc / Q000737:chemistry*
D001672:Biocompatible Materials; D002413:Cations, Divalent; D003300:Copper; D015032:Zinc; D003545:Cysteine