Fluorescent sensing of ascorbic acid based on iodine induced oxidative etching and aggregation of lysozyme-templated silver nanoclusters

2018 ◽  
Vol 1003 ◽  
pp. 49-55 ◽  
Author(s):  
Qinchao Mo ◽  
Fang Liu ◽  
Jing Gao ◽  
Meiping Zhao ◽  
Na Shao
Keyword(s):  
Ascorbic Acid ◽  
Silver Nanoclusters ◽  
Fluorescent Sensing ◽  
Oxidative Etching

scholarly journals Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yunpeng Shang ◽  
Hui Gao ◽  
Lei Li ◽  
Chaoqun Ma ◽  
Jiao Gu ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Synthesis Method ◽  
Fluorescence Emission ◽  
Emission Peak ◽  
Silver Nanoclusters ◽  
Synthesis Process ◽  
Blue Fluorescence ◽  
Fluorescent Sensing ◽  
Sensing System ◽  
Ag Ncs

Herein, we prepared the L-histidine- (His-) protected silver nanoclusters (Ag NCs) by the microwave synthesis method. The synthesis process was rapid, facile, and environmentally friendly. Under 356 nm excitation, the as-prepared Ag NCs exhibited the blue fluorescence, and the fluorescence emission peak was located at 440 nm. The Ag NCs could successfully detect trace copper (Cu2+) ions in the aqueous solution and the limit of detection (LOD) was as low as 0.6 pM. Interestingly, the Ag NCs showed a different pH-dependent selectivity for both Cu2+ and iron (Fe3+) ions with no responses to other heavy metal ions. Furthermore, the as-fabricated fluorescent sensing system was utilized to detect glutathione (GSH, the LOD was 0.8 nM) by using the “switch-on” fluorescence recovery of Ag NCs through adding glutathione (GSH) to the Cu2+-Ag NCs solution.

Poly(methacrylic acid)‐Stabilized Silver Nanoclusters as Colorimetric Sensors for the Rapid and Sensitive Detection of Ascorbic Acid

2021 ◽  
Vol 6 (6) ◽  
pp. 1248-1254
Author(s):  
Songtham Ruangchaithaweesuk ◽  
Pattraporn Srirattanasakunsuk ◽  
Chutima Poomuang ◽  
Amornrat Kanokworrakarn ◽  
Thawatchai Tuntulani
Keyword(s):  
Ascorbic Acid ◽  
Methacrylic Acid ◽  
Silver Nanoclusters ◽  
Sensitive Detection ◽  
Colorimetric Sensors

“Switch-On” Fluorescent Sensing of Ascorbic Acid in Food Samples Based on Carbon Quantum Dots–MnO2 Probe

2015 ◽  
Vol 64 (1) ◽  
pp. 371-380 ◽  
Author(s):  
Juanjuan Liu ◽  
Yonglei Chen ◽  
Weifeng Wang ◽  
Jie Feng ◽  
Meijuan Liang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Carbon Quantum Dots ◽  
Food Samples ◽  
Fluorescent Sensing

Papain-stabilized silver nanoclusters: dual emission and ratiometric fluorescent sensing of ferrous ions

2019 ◽  
Vol 11 (7) ◽  
pp. 936-941 ◽  
Author(s):  
Qinchao Mo ◽  
Minna Jia ◽  
Peifeng Zhuang ◽  
Simin Yang ◽  
Wanting Su ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Silver Nanoclusters ◽  
Ferrous Ions ◽  
Dual Emission ◽  
Fluorescent Sensing ◽  
Ag Nanoclusters

Herein, a dual emissive fluorescent probe for Fe2+ based on papain-stabilized Ag nanoclusters was developed.

An inner filter effect based Schiff base chemosensor for recognition of Cr(vi) and ascorbic acid in water matrices

2018 ◽  
Vol 42 (1) ◽  
pp. 293-300 ◽  
Author(s):  
Ambreen Abbasi ◽  
Mohammad Shakir
Keyword(s):  
Ascorbic Acid ◽  
Schiff Base ◽  
Inner Filter Effect ◽  
Fluorescent Sensing ◽  
Filter Effect

An effective and simple fluorescent sensing approach for recognition of Cr(vi) using a Schiff base chemosensor,N′-[(E)-(3,4-dimethoxyphenyl) methylidene] furan-2-carbohydrazide, was developed.

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.

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