Fluorescent Property of Chitosan Oligomer and Its Application as a Metal Ion SensorReportar como inadecuado


Fluorescent Property of Chitosan Oligomer and Its Application as a Metal Ion Sensor


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1

Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 34134, Korea

2

Laboratory of Molecular Imaging and Nanomedicine LOMIN, National Institute of Biomedical Imaging and Bioengineering NIBIB, National Institutes of Health NIH, Bethesda, MD 20892, USA





*

Authors to whom correspondence should be addressed.



Academic Editors: David Harding and Hitoshi Sashiwa

Abstract An aqueous solution was successfully prepared using a low-molecular-weight chitosan oligomer and FITC, and its structural and fluorescent properties were observed by using 1H NMR, 13C NMR, FT-IR, XRD, UV-Vis, and PL spectrometry. Its application as a metal ion sensor was also evaluated. The fluorescence in the water-soluble chitosan oligomer was a result of the carbamato anion NHCOO-, and a synthesized FITC-labeled chitosan oligomer exhibited an effective detection effect for copper ion as well as energy transfer by the ion near FITC that caused a fluorescence decrease quenching. The chitosan oligomer was confirmed to be applicable as a selective and sensitive colorimetric sensor to detect Cu2+. View Full-Text

Keywords: chitosan oligomer; fluorescent property; metal ion sensor chitosan oligomer; fluorescent property; metal ion sensor





Autor: Hun Min Lee 1, Min Hee Kim 1, Young Il Yoon 2,* and Won Ho Park 1,*

Fuente: http://mdpi.com/



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