A novel and sensitive chemosensor based on a KMnO4–rhodamine B–CdS quantum dot chemiluminescence system for meropenem detection. Issue 2 (14th December 2016)

• Record Type: Journal Article
• Authors: Khataee, Alireza; Lotfi, Roya; Hasanzadeh, Aliyeh
• Is Part Of: Photochemical & photobiological sciences. Volume 16:Issue 2(2017)
• Page Start: 170
• Page End: 177
• Publication Date: 2016-12-14
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; 541.35
• DOI: 10.1039/c6pp00320f
• Languages: English
• ISSNs: 1474-905X

Abstract

Abstract : The reaction of a KMnO4 –Rh B–l -cysteine capped CdS QD system is described as a novel chemiluminescence (CL) reaction. Meropenem exhibits a quenching effect on KMnO4 –Rh B–l -cysteine capped CdS QDs. Abstract : A sensitive and simple flow injection chemiluminescence (CL) system was constructed for the determination of meropenem, in which the CL intensity of the KMnO4 –rhodamine B (Rh B) reaction was enhanced in the presence of CdS quantum dots (QDs). A CL resonance energy transfer (CRET) occurs between CdS QDs as a donor and Rh B as an energy acceptor. Based on the strong specific quenching effect of meropenem on the CL intensity, a novel chemosensor for meropenem sensing was developed. Under the optimized conditions, the quenched CL emission intensity was proportional to the concentration of meropenem in the range of 0.002–10.0 mg L −1 with a detection limit (3 σ ) of 0.8 μg L −1 Moreover, the feasibility of the induced CL system was studied via the meropenem determination in environmental water samples.