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Quantum dots based “On-Off” fluorescence probe for the selective detection of Cu2+ ion: Application to real sample analysis
- Pawar, Samadhan P;
- Gore, Anil H;
- Walekar, Laxman S;
- Naik, Vaibhav M;
- Anbhule, Prashant V;
- ... Sohn, Daewon;
- 외 1명
SCOPUS
9초록
Turn ‘On-Off’ quantum dot-based fluorescent probe has been developed for the selective detection of Cu2+. This strategy achieved by consecutively fluorescence enhancement and quenching of mercapto propionic acid (MPA) capped cadmium sulphide quantum dots (MPA-CdS QDs) by the addition of D-penicillamine (D-PA) and Cu2+ respectively. After successive addition of Cu2+in CdS QDs-(D-PA) system, the fluorescence intensity of quantum dots decrease due to the removal of D-PA molecules from the surface of QDs as well as selective ion exchange process takes place between Cu2+ and Cd2+ at the surface of QDs. At optimal conditions, probe offers a good response in the linear range between 4 ng/mL and 40 ng/mL with LOD 2.71 ng/mL. This reported strategy is a very simple and selective towards Cu2+. Hence, a new method for the potential detection of Cu2+ in real pharmaceutical samples can be developed by using QDs-based fluorescence probe.
키워드
- 제목
- Quantum dots based “On-Off” fluorescence probe for the selective detection of Cu2+ ion: Application to real sample analysis
- 저자
- Pawar, Samadhan P; Gore, Anil H; Walekar, Laxman S; Naik, Vaibhav M; Anbhule, Prashant V; Sohn, Daewon; Kolekar, Govind B
- 발행일
- 2019-12
- 유형
- Data Paper
- 권
- 24
- 페이지
- 1 ~ 7