Determination of Silver Ion with Cadmium Sulfide Quantum Dots Modified by Bismuthiol II as Fluorescence Probe

2007 ◽  
Vol 97 (1-2) ◽  
pp. 109-121 ◽  
Author(s):  
Shoujun Lai ◽  
Xijun Chang ◽  
Jie Mao ◽  
Yunhui Zhai ◽  
Ning Lian ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cadmium Sulfide ◽  
Fluorescence Probe ◽  
Silver Ion

Boric acid functionalized ratiometric fluorescence probe for sensitive and on-site naked eye determination of dopamine based on two different kinds of quantum dots

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72715-72721 ◽  
Author(s):  
Yeqing Xu ◽  
Xiao Wei ◽  
Hongji Li ◽  
Xudong Zheng ◽  
Kai Lu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Carbon Quantum Dots ◽  
Eye Detection ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Naked Eye ◽  
Aminophenylboronic Acid ◽  
Naked Eye Detection

A simple dual-emission probe based on 3-aminophenylboronic acid functionalized CdTe quantum dots (QDs) and carbon quantum dots (CQDs) was developed for the on-site naked eye detection of dopamine (DA).

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.

Preparation of polyacrylonitrile nanofibers decorated by N-doped carbon quantum dots: application as a fluorescence probe for determination of Cr(vi)

2018 ◽  
Vol 42 (23) ◽  
pp. 18765-18772 ◽  
Author(s):  
Tayyebeh Madrakian ◽  
Amir Hossein Mohammadzadeh ◽  
Somayeh Maleki ◽  
Abbas Afkhami
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Fluorescence Probe ◽  
Carbon Quantum Dots ◽  
New Method ◽  
Carbon Quantum Dot

This study presents a new method to synthesize a fluorescence probe using an N-doped carbon quantum dot decorated polyacrylonitrile nanofiber (N-CQD@NF) nanocomposite.

Mn-doped ZnS quantum dots with a 3-mercaptopropionic acid assembly as a ratiometric fluorescence probe for the determination of curcumin

RSC Advances ◽  
2015 ◽  
Vol 5 (28) ◽  
pp. 21504-21510 ◽  
Author(s):  
Xiaojuan Zhao ◽  
Fengxia Li ◽  
Qingyan Zhang ◽  
Zengbo Li ◽  
Yehong Zhou ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Fluorescence Probe ◽  
Ratiometric Fluorescence ◽  
Mercaptopropionic Acid ◽  
Mn Doped

Mn-doped ZnS quantum dots capped with 3-mercaptopropionic acid (MPA) were synthesized by a facile method in aqueous solution as a ratiometric fluorescent (I590 nm/I458 nm) probe for curcumin.

Sign in / Sign up

Export Citation Format

Share Document