Polymer Capped CdSe/ZnS Quantum Dots for the Sensitive Detection of Cu2+ and Hg2+ and the Quenching Mechanism

2021 ◽  
Author(s):  
Quanxiu Zhou ◽  
Zhaofa Li ◽  
Qunfang Wang ◽  
Liang Peng ◽  
Shihe Luo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Maleic Anhydride ◽  
Fluorescence Probe ◽  
Sensitive Detection ◽  
Quenching Mechanism

In this wrok, poly (styrene-co-maleic anhydride) capped CdSe/ZnS quantum dots (QDs) aminolyszed by ethanolamine are proposed as a fluorescence probe for the detection of Cu2+ and Hg2+, and two different...

Synthesis of Tin Oxide Quantum Dots-based Fluorescence Probe for AA Sensitive Detection

2019 ◽  
Vol 40 (12) ◽  
pp. 1554-1562
Author(s):  
曾慧慧 ZENG Hui-hui ◽  
肖梅珍 XIAO Mei-zhen ◽  
晏根平 YAN Gen-ping ◽  
刘 芳 LIU Fang ◽  
黄 检 HUANG Jian ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tin Oxide ◽  
Fluorescence Probe ◽  
Sensitive Detection

A fast-responsive fluorescent probe for sensitive detection of graphene oxide based on MoS2 quantum dots

The Analyst ◽  
2018 ◽  
Vol 143 (13) ◽  
pp. 3107-3113 ◽  
Author(s):  
Haiyan Cao ◽  
Yu Huang ◽  
Yuanyang Xie ◽  
Wenbing Shi ◽  
Cuicui Fu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Fluorescent Probe ◽  
Fluorescence Probe ◽  
Sensitive Detection ◽  
Excellent Stability

N-MoS2 QDs showed excellent stability, and were used to build a simple fluorescence probe for the determination of GO.

Sensitive detection of sodium cromoglycate with glutathione-capped CdTe quantum dots as a novel fluorescence probe

Luminescence ◽  
2015 ◽  
Vol 30 (7) ◽  
pp. 1112-1118 ◽  
Author(s):  
Chenxia Hao ◽  
Shaopu Liu ◽  
Dan Li ◽  
Jidong Yang ◽  
Youqiu He
Keyword(s):  
Quantum Dots ◽  
Sodium Cromoglycate ◽  
Fluorescence Probe ◽  
Cdte Quantum Dots ◽  
Sensitive Detection

Turn-on fluorescence probe for selective and sensitive detection of d-penicillamine by CdS quantum dots in aqueous media: Application to pharmaceutical formulation

2015 ◽  
Vol 209 ◽  
pp. 911-918 ◽  
Author(s):  
Samadhan P. Pawar ◽  
Anil H. Gore ◽  
Laxman S. Walekar ◽  
Prashant V. Anbhule ◽  
Shivajirao R. Patil ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Aqueous Media ◽  
Pharmaceutical Formulation ◽  
Sensitive Detection ◽  
Cds Quantum Dots ◽  
Turn On

Synthesized of Carbon Quantum Dots from Red Dates and as A “Off-On ” Fluorescence Probe for High Sensitive Detection of Rutin

2018 ◽  
Vol 39 (4) ◽  
pp. 600-607
Author(s):  
王靖原 WANG Jing-yuan ◽  
张越诚 ZHANG Yue-cheng ◽  
马红燕 MA Hong-yan ◽  
刘晓莉 LIU Xiao-li ◽  
王琦 WANG Qi
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Carbon Quantum Dots ◽  
Sensitive Detection

scholarly journals A Highly Sensitive and Selective Fluorescent Probe Using MPA-InP/ZnS QDs for Detection of Trace Amounts of Cu2+ in Water

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2777
Author(s):  
Zeyu Xu ◽  
Yizhong Wang ◽  
Jiaran Zhang ◽  
Ce Shi ◽  
Xinting Yang
Keyword(s):  
Quantum Dots ◽  
Fluorescence Quenching ◽  
Fluorescence Intensity ◽  
Human Body ◽  
Fluorescence Probe ◽  
Limit Of Detection ◽  
Quenching Mechanism ◽  
Real Water Samples ◽  
Highly Sensitive ◽  
Fluorescence Quenching Mechanism

Detection of copper (II) ions (Cu2+) in water is important for preventing them from entering the human body to preserve human health. Here, a highly sensitive and selective fluorescence probe that uses mercaptopropionic acid (MPA)-capped InP/ZnS quantum dots (MPA-InP/ZnS QDs) was proposed for the detection of trace amounts of Cu2+ in water. The fluorescence of MPA-InP/ZnS QDs can be quenched significantly in the presence of Cu2+, and the fluorescence intensity shows excellent linearity when the concentration of Cu2+ varies from 0–1000 nM; this probe also exhibits an extremely low limit of detection of 0.22 nM. Furthermore, a possible fluorescence-quenching mechanism was proposed. The MPA-InP/ZnS QDs probes were further applied to the detection of trace Cu2+ in real water samples and drink samples, showing good feasibility.

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