Simple fluorescence sensing of extreme acidity based on inner filter effect of ascorbic acid to fluorescent Au nanoclusters

Nanoscale ◽  
2017 ◽  
Vol 9 (29) ◽  
pp. 10167-10172 ◽  
Author(s):  
Ronghui Zhou ◽  
Yuqin Li ◽  
Yuanyuan Tian ◽  
Qun Sun ◽  
Pengchi Deng ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Organic Synthesis ◽  
Inner Filter Effect ◽  
Fluorescence Sensor ◽  
Fluorescence Sensing ◽  
Au Nanoclusters ◽  
Filter Effect ◽  
Ph Range ◽  
Complex Organic

On the basis of the inner filter effect (IFE) between ascorbic acid (AA) and Au nanoclusters (AuNCs), a simple extreme acidity fluorescence sensor was developed without complex organic synthesis, which can be used to detect acidity within the pH range of 2.4–4.6.

On–Off–On Fluorescent Carbon Dot Nanosensor for Recognition of Chromium(VI) and Ascorbic Acid Based on the Inner Filter Effect

2013 ◽  
Vol 5 (24) ◽  
pp. 13242-13247 ◽  
Author(s):  
Min Zheng ◽  
Zhigang Xie ◽  
Dan Qu ◽  
Di Li ◽  
Peng Du ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Inner Filter Effect ◽  
Carbon Dot ◽  
Chromium Vi ◽  
Filter Effect ◽  
Fluorescent Carbon

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.

scholarly journals “Turn on” Fluorescence Sensor of Glutathione Based on Inner Filter Effect of Co-Doped Carbon Dot/Gold Nanoparticle Composites

2021 ◽  
Vol 23 (1) ◽  
pp. 190
Author(s):  
Thi-Hoa Le ◽  
Ji-Hyeon Kim ◽  
Sang-Joon Park
Keyword(s):  
Gold Nanoparticle ◽  
Fluorescence Intensity ◽  
Limit Of Detection ◽  
Inner Filter Effect ◽  
Fluorescence Sensor ◽  
Fluorescence Emission Spectrum ◽  
Nitrogen And Phosphorus ◽  
Carbon Dot ◽  
Filter Effect ◽  
Co Doped

Glutathione (GSH) is a thiol that plays a significant role in nutrient metabolism, antioxidant defense and the regulation of cellular events. GSH deficiency is related to variety of diseases, so it is useful to develop novel approaches for GSH evaluation and detection. In this study we used nitrogen and phosphorus co-doped carbon dot-gold nanoparticle (NPCD–AuNP) composites to fabricate a simple and selective fluorescence sensor for GSH detection. We employed the reductant potential of the nitrogen and phosphorus co-doped carbon dots (NPCDs) themselves to form AuNPs, and subsequently NPCD–AuNP composites from Au3+. The composites were characterized by using a range of spectroscopic and electron microscopic techniques, including electrophoretic light scattering and X-ray diffraction. The overlap of the fluorescence emission spectrum of NPCDs and the absorption spectrum of AuNPs resulted in an effective inner filter effect (IFE) in the composite material, leading to a quenching of the fluorescence intensity. In the presence of GSH, the fluorescence intensity of the composite was recovered, which increased proportionally to increasing the GSH concentration. In addition, our GSH sensing method showed good selectivity and sensing potential in human serum with a limit of detection of 0.1 µM and acceptable results.

Water-soluble MoS2 quantum dots for facile and sensitive fluorescence sensing of alkaline phosphatase activity in serum and live cells based on the inner filter effect

Nanoscale ◽  
2018 ◽  
Vol 10 (45) ◽  
pp. 21298-21306 ◽  
Author(s):  
Yaping Zhong ◽  
Fengfeng Xue ◽  
Peng Wei ◽  
Ruohan Li ◽  
Chunyan Cao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Alkaline Phosphatase ◽  
Phosphatase Activity ◽  
Alkaline Phosphatase Activity ◽  
Inner Filter Effect ◽  
Water Soluble ◽  
Live Cells ◽  
Fluorescence Sensing ◽  
Filter Effect ◽  
Sensitive Method

We report a facile and sensitive method for the detection of alkaline phosphatase (ALP) activity in serum and live cells using molybdenum disulfide quantum dots (MoS2 QDs) based on the Inner Filter Effect (IFE).

A fluorescence sensing method for brilliant blue with gold nanoclusters based on the inner filter effect

2020 ◽  
Vol 12 (37) ◽  
pp. 4551-4555
Author(s):  
Haijian Liu ◽  
Miao Wang ◽  
Zhenxiang Li ◽  
Chengjie Xin ◽  
Guofu Huang
Keyword(s):  
Gold Nanoclusters ◽  
Inner Filter Effect ◽  
Brilliant Blue ◽  
Fluorescence Sensing ◽  
Filter Effect

Due to the inner filter effect (IFE) between Brilliant Blue (BB) and gold nanoclusters (AuNCs), a simple and rapid approach for BB detection was developed.

Dual-emissive gold nanoclusters for label-free and separation-free ratiometric fluorescence sensing of 4-nitrophenol based on the inner filter effect

2018 ◽  
Vol 6 (18) ◽  
pp. 5033-5038 ◽  
Author(s):  
Tong Shu ◽  
Jianxing Wang ◽  
Xiangfang Lin ◽  
Ziping Zhou ◽  
Feng Liang ◽  
...  
Keyword(s):  
Fluorescent Sensor ◽  
Gold Nanoclusters ◽  
Fluorescence Emission ◽  
Inner Filter Effect ◽  
Label Free ◽  
Ratiometric Fluorescence ◽  
Blue Fluorescence ◽  
Fluorescence Sensing ◽  
Filter Effect ◽  
Ratiometric Fluorescence Sensing

A ratiometric fluorescent sensor based on 4-nitrophenol-induced selective quenching of the blue fluorescence emission of the diTyr residues of the GNCs@BSA via the inner filter effect.

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