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

scholarly journals An ultrasensitive colorimetric and fluorescence dual-readout assay for glutathione with a carbon dot–MnO2 nanosheet platform based on the inner filter effect

RSC Advances ◽  
2021 ◽  
Vol 11 (34) ◽  
pp. 21137-21144
Author(s):  
Mengyuan He ◽  
Ning Shang ◽  
Bo Zheng ◽  
Gege Yue
Keyword(s):  
Human Body ◽  
Body Fluid ◽  
Inner Filter Effect ◽  
Carbon Dot ◽  
Filter Effect ◽  
Human Body Fluid ◽  
Mno2 Nanosheet

An ultrasensitive colorimetric and fluorescence dual-readout assay based on carbon dot–MnO2 nanosheets platform was developed for GSH detection in human body fluid samples.

Facile one-step synthesis of highly luminescent N-doped carbon dots as an efficient fluorescent probe for chromium(vi) detection based on the inner filter effect

2018 ◽  
Vol 42 (5) ◽  
pp. 3729-3735 ◽  
Author(s):  
Haitao Wang ◽  
Shan Liu ◽  
Yisha Xie ◽  
Jingran Bi ◽  
Yao Li ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Inner Filter Effect ◽  
Fluorescence Assay ◽  
Assay System ◽  
Label Free ◽  
Chromium Vi ◽  
Filter Effect ◽  
One Step ◽  
Doped Carbon Dots

Label-free fluorescence assay system is designed for Cr(iv) detection.

Bacterium-Derived Carbon Dots as a Novel “Turn-On-On-Off-On” Sensor for Cr(VI) and 4-Nitrophenol Detection Based on Inner Filter Effect Mechanism

NANO ◽  
2020 ◽  
Vol 15 (06) ◽  
pp. 2050074
Author(s):  
Suping Wang ◽  
Yujiao Tu ◽  
Kunhao Qin ◽  
Xiaotian Yuan ◽  
Wei Chen ◽  
...  
Keyword(s):  
Environmental Pollutants ◽  
Inner Filter Effect ◽  
Environmental Pollutant ◽  
Turn On ◽  
Chromium Vi ◽  
Filter Effect ◽  
Novel Approach ◽  
Fluorescence Nanoprobe ◽  
One Step ◽  
Sensitive Sensor

Phenolic compounds, especially 4-nitrophenol (4-NP), and chromium (VI) are highly toxic environmental pollutants. Thus, it is significantly important to establish a rapid and sensitive sensor for 4-NP and Cr(VI) monitoring in environment. In this paper, a novel approach has been adopted where E. coli-derived CDs (CDs-WT) prepared by one step hydrothermal method previously and sensitized by ampicillin (turn-on) were used as fluorescence nanoprobe (CDs-WT-Amp) for 4-NP and Cr(VI) determination based on the inner filter effect quenching mechanism (turn-off). Then, the quenching fluorescence was reversed by addition of ampicillin (turn-on). The linear ranges of 4-NP and Cr(VI) detection were 0–50[Formula: see text][Formula: see text]M and 0–25[Formula: see text][Formula: see text]M, with the limits of detection 88.89[Formula: see text]nM and 64.75[Formula: see text]nM, respectively. The “turn-on-on-off-on” fluorescent nanosensor system was successfully used to determine Cr(VI) and 4-NP in water with satisfactory results. It shows that the “turn-on-off-on” nanoprobe has great promising potential for application to environmental pollutant detection.

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.

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.

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