Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15186
Title: A new rhodamine-thiourea/Al3+ complex sensor for the fast visual detection of arginine in aqueous media
Authors: He, L
So, VLL
Xin, JH 
Keywords: Aluminum ion
Amino acid
Arginine
Fluorescent chemosensor
Naked-eye recognition
Rhodamine thiourea
Issue Date: 2014
Publisher: Elsevier
Source: Sensors and actuators. B, Chemical, 2014, v. 192, p. 496-502 How to cite?
Journal: Sensors and actuators. B, Chemical 
Abstract: A new naked-eye fluorescent sensor composed of bis-rhodamine-thiourea/ Al3+ complex has been developed targeting the detection of arginine. It displayed high sensitivity and selectivity toward arginine over other analytes in aqueous media. In the presence of arginine, the complex sensor can give dual responsive signals of a visible color change and an 'on-off' fluorescence change within 1 min due to the opening-closure transformation of the spiro ring in rhodamine. More importantly, the complex sensor has a widely linear detection range of 0-1.2 × 10-4 mol L-1 toward arginine under the experimental conditions, which exceeded the concentration range in healthy body plasma samples. It demonstrates the potential application in plasma samples for real-time analysis.
URI: http://hdl.handle.net/10397/15186
ISSN: 0925-4005
EISSN: 1873-3077
DOI: 10.1016/j.snb.2013.11.001
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