A rapid and sensitive turn-on fluorescent probe for ascorbic acid detection based on carbon dots–MnO2 nanocomposites

2017 ◽  
Vol 9 (38) ◽  
pp. 5653-5658 ◽  
Author(s):  
Yalei Hu ◽  
Lin Zhang ◽  
Xin Geng ◽  
Jia Ge ◽  
Haifang Liu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Fluorescent Probe ◽  
Carbon Dots ◽  
Turn On ◽  
Specific Determination ◽  
Ascorbic Acid Detection

A rapid turn-on fluorescent probe is proposed for the sensitive and specific determination of ascorbic acid based on carbon dots–MnO2 nanocomposites.

Lysozyme-stabilized bimetallic gold/silver nanoclusters as a turn-on fluorescent probe for determination of ascorbic acid and acid phosphatase

2017 ◽  
Vol 9 (47) ◽  
pp. 6713-6718 ◽  
Author(s):  
Shu Pang ◽  
Siyu Liu
Keyword(s):  
Aqueous Solution ◽  
Ascorbic Acid ◽  
Acid Phosphatase ◽  
Fluorescent Probe ◽  
Reducing Agent ◽  
Silver Nanoclusters ◽  
Turn On ◽  
Gold Silver

Bimetallic gold/silver nanoclusters were synthesized in aqueous solution with lysozyme as a stabilizing and reducing agent.

Turn-on fluorescent probe for dopamine detection in solutions and live cells based on in situ formation of aminosilane-functionalized carbon dots

2021 ◽  
Vol 1157 ◽  
pp. 338394
Author(s):  
Xiao-Yue Tang ◽  
Yi-Ming Liu ◽  
Xiao-Lin Bai ◽  
Hao Yuan ◽  
Yi-Kao Hu ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Live Cells ◽  
Turn On ◽  
Dopamine Detection ◽  
In Situ Formation

scholarly journals Synthesis of Fluorescent Carbon Dots and Their Application in Ascorbic Acid Detection

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1246
Author(s):  
Tengfei Wang ◽  
Hui Luo ◽  
Xu Jing ◽  
Jiali Yang ◽  
Meijun Huo ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Fluorescence Intensity ◽  
Carbon Dots ◽  
Ph Dependence ◽  
Scale Up ◽  
Water Soluble ◽  
Jujube Fruit ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Water-soluble fluorescent carbon dots (CDs) were synthesized by a hydrothermal method using citric acid as the carbon source and ethylenediamine as the nitrogen source. The repeated and scale-up synthetic experiments were carried out to explore the feasibility of macroscopic preparation of CDs. The CDs/Fe3+ composite was prepared by the interaction of the CDs solution and Fe3+ solution. The optical properties, pH dependence and stability behavior of CDs or the CDs/Fe3+ composite were studied by ultraviolet spectroscopy and fluorescence spectroscopy. Following the principles of fluorescence quenching after the addition of Fe3+ and then the fluorescence recovery after the addition of asorbic acid, the fluorescence intensity of the carbon dots was measured at λex = 360 nm, λem = 460 nm. The content of ascorbic acid was calculated by quantitative analysis of the changing fluorescence intensity. The CDs/Fe3+ composite was applied to the determination of different active molecules, and it was found that the composite had specific recognition of ascorbic acid and showed an excellent linear relationship in 5.0–350.0 μmol·L−1. Moreover, the detection limit was 3.11 μmol·L−1. Satisfactory results were achieved when the method was applied to the ascorbic acid determination in jujube fruit. The fluorescent carbon dots composites prepared in this study may have broad application prospects in a rapid, sensitive and trace determination of ascorbic acid content during food processing.

Selective determination of Ag+ using Salecan derived nitrogen doped carbon dots as a fluorescent probe

2017 ◽  
Vol 77 ◽  
pp. 508-512 ◽  
Author(s):  
Junjian Li ◽  
Gancheng Zuo ◽  
Xiaoliang Qi ◽  
Wei Wei ◽  
Xiaohao Pan ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Selective Determination ◽  
Nitrogen Doped ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

N,S co-doped carbon dots based fluorescent “on-off-on” sensor for determination of ascorbic acid in common fruits

2018 ◽  
Vol 258 ◽  
pp. 214-221 ◽  
Author(s):  
Xueli Luo ◽  
Wengang Zhang ◽  
Yong Han ◽  
Xiumei Chen ◽  
Li Zhu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Carbon Dots ◽  
Doped Carbon Dots ◽  
Co Doped

Near-infrared carbon dots-based fluorescence turn on aptasensor for determination of carcinoembryonic antigen in pleural effusion

2019 ◽  
Vol 1068 ◽  
pp. 52-59 ◽  
Author(s):  
Kang Shao ◽  
Lanfang Wang ◽  
Yingting Wen ◽  
Tao Wang ◽  
Yuanjie Teng ◽  
...  
Keyword(s):  
Pleural Effusion ◽  
Carcinoembryonic Antigen ◽  
Carbon Dots ◽  
Near Infrared ◽  
Turn On ◽  
Fluorescence Turn On
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