Citrate-stabilized CdSe/CdS quantum dots as fluorescence probe for protein determination

2010 ◽  
Vol 17 (4) ◽  
pp. 720-725 ◽  
Author(s):  
Xin Fu ◽  
Ke-long Huang ◽  
Su-qin Liu
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Cds Quantum Dots ◽  
Protein Determination

A Simple Method for Copper Ion Determination in Beverages Using Mn-Modified CdTe/CdS Quantum Dots as a Fluorescence Probe

2016 ◽  
Vol 16 (12) ◽  
pp. 12282-12287 ◽  
Author(s):  
Fangdi Wei ◽  
Hailin Yu ◽  
Chunting Hu ◽  
Zheng Cai ◽  
Jing Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Copper Ion ◽  
Cds Quantum Dots ◽  
Simple Method

Fluorescent glucose sensing using CdTe/CdS quantum dots–glucose oxidase complex

2016 ◽  
Vol 8 (14) ◽  
pp. 2967-2970 ◽  
Author(s):  
Liyun Ding ◽  
Bingyu Zhang ◽  
Chuang Xu ◽  
Jun Huang ◽  
Zhilin Xia
Keyword(s):  
Quantum Dots ◽  
Glucose Oxidase ◽  
Fluorescence Probe ◽  
Glucose Sensing ◽  
Core Shell ◽  
Glucose Detection ◽  
Cds Quantum Dots ◽  
The Core

The core/shell quantum dots–glucose oxidase complex has been synthesized and proved as a potential fluorescence probe for glucose detection.

Determination of Trace Iron in Chinese Herbal Medicine Using CdS Quantum Dots as Fluorescence Probes

2012 ◽  
Vol 455-456 ◽  
pp. 1195-1199
Author(s):  
Yun Long Zeng ◽  
Xia Fei Li ◽  
Chun Ran Tang ◽  
Hao Wen Huang ◽  
Ya Jing Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Copper Ion ◽  
Water Soluble ◽  
Fluorescence Probes ◽  
Cds Quantum Dots ◽  
Buffer Solution ◽  
Green Protocol ◽  
Quenching Method

A simple A green protocol for synthesis of high quality, water-soluble and biocompatible CdS QDs have been developed in aqueous solution with amylum as stabilizing agent. The QDs were characterized by AMF and spectral methods. A fluorescence quenching method was developed for determination of iron (ΙΙΙ) with water soluble CdS quantum dots (QDs) as fluorescence probe. In pH 8.5 boric acid–borax buffer solution, the QDs show a high selective to ferric ion. The common cations, such as Ca2+, Mg2+, Zn2+, Fe2+ et al, have no effect on interference but copper ion. The fluorescence intensity of the QDs decreased linearly with the iron (QDs ) concentration in the range of 200 μM to 60 nM with a detection limit of 20 nM. It has been applied to determinate of iron in Angelica, Astragalus, Shouwu, ligusticum wallichii and radix rehmanniae recen.

Application of Luminescent BSA-Capped CdS Quantum Dots as a Fluorescence Probe for the Detection of Cu2+

2008 ◽  
Vol 55 (5) ◽  
pp. 1069-1073 ◽  
Author(s):  
Su-Qin Han ◽  
Jian-Li Liu ◽  
Zhi-Gang Gan ◽  
Jian-Gong Liang ◽  
Shou-Miao Zhao
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Cds Quantum Dots

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

scholarly journals L-Aspartic Acid Capped CdS Quantum Dots as a High Performance Fluorescence Assay for Sliver Ions (I) Detection

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1165 ◽  
Author(s):  
Zhezhe Wang ◽  
Xuechun Xiao ◽  
Yue Yang ◽  
Tong Zou ◽  
Xinxin Xing ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Aspartic Acid ◽  
High Performance ◽  
Fluorescence Probe ◽  
Hydrothermal Process ◽  
Fluorescence Emission ◽  
Fluorescence Assay ◽  
Cds Quantum Dots ◽  
Relative Standard ◽  
Cds Qds

A new high performance fluorescence assay for detection of Ag+ based on CdS quantum dots (QDs) using L-Aspartic acid (L-Asp) as a stabilizer was proposed in this work. The CdS quantum dots conjugation with L-Aspartic acid (L-Asp@CdS QDs) were successfully synthesized via a simple hydrothermal process. The QDs have a fluorescence emission band maximum at 595 nm with a quantum yield of 11%. The obtained CdS QDs exhibit a particle size of 1.63 ± 0.28 nm and look like quantum dot flowers. Basically, the fluorescence intensity of L-Asp@CdS QDs can be enhanced only upon addition of Ag+ and a redshift in the fluorescence spectrum was observed. Under optimum conditions, the fluorescence enhancement of L-Asp@CdS QDs appeared to exhibit a good linear relationship in between 100–7000 nM (R2 = 0.9945) with the Ag+ concentration, with a detection limit of 39 nM. The results indicated that the L-Asp@CdS QDs were well used in detection for Ag+ as fluorescence probe in aqueous solution with high sensitivity and selectivity. Moreover, the sensing system has been applied in detection Ag+ in real water samples. The recovery test results were 98.6%~113%, and relative standard deviation (n = 5) is less than 3.6%, which was satisfactory.

Turn-off–on fluorescence probe based on 3-mercaptopropionic acid-capped CdS quantum dots for selective and sensitive lysozyme detection

RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 85795-85801 ◽  
Author(s):  
Xiaotong Liu ◽  
Weidan Na ◽  
Zhengyi Qu ◽  
Xingguang Su
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Fluorescence Assay ◽  
Cds Quantum Dots ◽  
Mercaptopropionic Acid ◽  
Cds Qds

The fluorescence of CdS QDs was first quenched by hemoglobin and then restored with the increasing concentration of the lysozyme in a certain range. Therefore, a fluorescence assay for the determination of lysozyme was established.

Thioglycolic Acid-Capped CdS Quantum Dots Conjugated to α-Amylase as a Fluorescence Probe for Determination of Starch at Low Concentration

2016 ◽  
Vol 26 (5) ◽  
pp. 1787-1794 ◽  
Author(s):  
Mahnoush Tayebi ◽  
Mohammad Tavakkoli Yaraki ◽  
Azadeh Mogharei ◽  
Mahnaz Ahmadieh ◽  
Mohammadreza Tahriri ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Thioglycolic Acid ◽  
Cds Quantum Dots ◽  
Low Concentration
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