Simple preparation of fluorescence probe based on CdTe quantum dots combined with MIP for selective detection of sulfadimidine

2019 ◽  
Vol 30 (24) ◽  
pp. 21177-21184 ◽  
Author(s):  
Jiahong Zheng ◽  
Kangkang Cheng ◽  
Pengfei Yu
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Cdte Quantum Dots ◽  
Selective Detection ◽  
Simple Preparation

Highly sensitive “turn-on” fluorescence probe for the detection of sparfloxacin in human serum using silica-functionalized CdTe quantum dots

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 99454-99460 ◽  
Author(s):  
Dan Li ◽  
Shaojie Jia ◽  
Essy Kouadio Fodjo ◽  
Hu Xu ◽  
Cong Kong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Human Serum ◽  
Fluorescence Probe ◽  
Cdte Quantum Dots ◽  
Selective Detection ◽  
Turn On ◽  
Highly Sensitive

The hydrophilic carboxyl-capped CdTe@SiO2 quantum dots (SQDs) can served as a “turn-on” photoluminescence (PL) probe for highly sensitive and selective detection of sparfloxacin in human serum.

Highly sensitive and selective detection of mercury ions based on up-conversion FRET from NaYF4:Yb3+/Er3+ nanophosphors to CdTe quantum dots

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 99099-99106 ◽  
Author(s):  
Shaobo Cui ◽  
Sai Xu ◽  
Hongwei Song ◽  
Wen Xu ◽  
Xu Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Environmental Problems ◽  
Cdte Quantum Dots ◽  
Selective Detection ◽  
Mercury Ions ◽  
Highly Sensitive

The detection of Hg2+ has attracted considerable attention because of the serious health and environmental problems caused by it.

scholarly journals Selective detection of glufosinate using CuInS2 quantum dots as a fluorescence probe

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 48077-48082 ◽  
Author(s):  
Fengyuan Zhu ◽  
Jing Zhu ◽  
Zhengzhu Zhang
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Selective Detection ◽  
Cuins2 Quantum Dots

This work designed a fluorescence “turn-off-on” probe to detect glufosinate.

scholarly journals Dual-Emission Fluorescence Probe Based on CdTe Quantum Dots and Rhodamine B for Visual Detection of Mercury and Its Logic Gate Behavior

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 713
Author(s):  
Yuefeng Gao ◽  
Sai Xu ◽  
Zhijian Liu ◽  
Kezhen Yu ◽  
Xinxiang Pan
Keyword(s):  
Quantum Dots ◽  
Rhodamine B ◽  
Visual Detection ◽  
Fluorescence Probe ◽  
Limit Of Detection ◽  
Logic Gate ◽  
Cdte Quantum Dots ◽  
Fluorescence Signal ◽  
Dual Emission ◽  
Cdte Qds

It is urgent that a convenient and sensitive technique of detecting Hg2+ be developed because of its toxicity. Conventional fluorescence analysis works with a single fluorescence probe, and it often suffers from signal fluctuations which are influenced by external factors. In this research, a novel dual-emission probe assembled through utilizing CdTe quantum dots (QDs) and rhodamine B was designed to detect Hg2+ visually. Only the emission of CdTe QDs was quenched after adding Hg2+ in the dual-emission probe, which caused an intensity ratio change of the two different emission wavelengths and hence facilitated the visual detection of Hg2+. Compared to single emission QDs-based probe, a better linear relationship was shown between the variation of fluorescence intensity and the concentration of Hg2+, and the limit of detection (LOD) was found to be11.4 nM in the range of 0–2.6 μM. Interestingly, the intensity of the probe containing Hg2+ could be recovered in presence of glutathione (GSH) due to the stronger binding affinity of Hg2+ towards GSH than that towards CdTe QDs. Based on this phenomenon, an IMPLICATION logic gate using Hg2+/GSH as inputs and the fluorescence signal of QDs as an output was constructed.

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