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).

Dual-emission ratiometric fluorescence detection of aspirin in human saliva: onsite naked-eye detection and high stability

2017 ◽  
Vol 41 (23) ◽  
pp. 14551-14556 ◽  
Author(s):  
Li Chen ◽  
Lin Sun ◽  
Jiahong Zheng ◽  
Jiangdong Dai ◽  
Yilin Wu ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
High Stability ◽  
Visual Detection ◽  
Fluorescence Probe ◽  
Human Saliva ◽  
Eye Detection ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Naked Eye ◽  
Naked Eye Detection

A highly stable ratiometric fluorescence probe based on dual-emission QDs was designed for the visual detection of aspirin in human saliva.

Highly selective naked eye detection of vitamin B1 in the presence of other vitamins using graphene quantum dots capped gold nanoparticles

2019 ◽  
Vol 43 (5) ◽  
pp. 2111-2117 ◽  
Author(s):  
B. Sinduja ◽  
S. Abraham John
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Graphene Quantum Dots ◽  
Vitamin B1 ◽  
Eye Detection ◽  
Naked Eye ◽  
Sensitive Determination ◽  
Naked Eye Detection

The application of Au-GQDs towards the sensitive determination of thiamine was demonstrated.

Efficient Ratiometric Fluorescence Probe Based on Dual-Emission Quantum Dots Hybrid for On-Site Determination of Copper Ions

2013 ◽  
Vol 85 (13) ◽  
pp. 6461-6468 ◽  
Author(s):  
Jianlei Yao ◽  
Kui Zhang ◽  
Houjuan Zhu ◽  
Fang Ma ◽  
Mingtai Sun ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Copper Ions ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Determination Of Copper

Synthesis of dual-emission fluorescent carbon quantum dots and their ratiometric fluorescence detection for arginine in 100% water solution

2019 ◽  
Vol 43 (33) ◽  
pp. 13234-13239 ◽  
Author(s):  
Yuying Wang ◽  
Hanxiao Liu ◽  
Huanhuan Song ◽  
Mingming Yu ◽  
Liuhe Wei ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Detection ◽  
Water Solution ◽  
Fast Response ◽  
Carbon Quantum Dots ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Detection Range ◽  
Fluorescent Method ◽  
Ph Detection

The dual-emission carbon dots (CDs) can detect arginine in 100% water via ratiometric fluorescent method. The CDs exhibits good photostability, selectivity, and anti-interference ability, fast response time, and wide pH detection range.

scholarly journals Visual test determination of trace amounts of germanium in the form of an ionic associate of 12-molybdogermanate with astrafloxin

2020 ◽  
Vol 166 ◽  
pp. 01013
Author(s):  
Tetiana Selivanova ◽  
Andrey Vishnikin ◽  
Lyudmila Tsiganok
Keyword(s):  
Iron Ore ◽  
Ionic Associate ◽  
Eye Detection ◽  
Triphenylmethane Dyes ◽  
Naked Eye ◽  
Chromaticity Coordinates ◽  
State Pedagogical ◽  
Ionic Associates ◽  
Naked Eye Detection

Sorption-colorimetric and naked eye determination of germanium as ion associates of GeMo O 4– with triphenylmethane dyes is described. The sorption of the ionic associates (IA) of 12molybdogermanat with astrafloxin (AF) on filter paper was studied. The colored scales for naked eye detection and dependence of chromaticity coordinates from the germanium (IV) concentration were obtained. The methods were applied to the determination of germanium (IV) in coked coal, iron ore, and in waters in the concentration range from 4•10–8 to 1•10–6 mol•L–1. The developed test-systems for the determination of Germanium in natural and technological objects were tested in the course of training students of chemistry of Kryvyi Rih State Pedagogical University.

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.

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