Specific monitoring of aflatoxin M1 in real samples using aptamer binding to DNFS based on turn‐on method: A novel biosensor

2020 ◽  
Vol 33 (6) ◽  
Author(s):  
Houman Kholafazad Kordasht ◽  
Mohammad Hasanzadeh
Keyword(s):  
Aflatoxin M1 ◽  
Real Samples ◽  
Turn On

A “turn-on” small molecule fluorescent sensor for the determination of Al3+ ion in real samples: theoretical calculations, and photophysical and electrochemical properties

2021 ◽  
Vol 45 (39) ◽  
pp. 18400-18411
Author(s):  
Süreyya Oğuz Tümay ◽  
Ahmet Şenocak ◽  
Arif Mermer
Keyword(s):  
Small Molecule ◽  
Fluorescent Sensor ◽  
Theoretical Calculations ◽  
Sample Analysis ◽  
Fluorescence Sensing ◽  
Paper Test ◽  
Real Samples ◽  
Real Sample Analysis ◽  
Turn On

The fluorescence sensing properties of a naphthalene-based acetohydrazide (3) were investigated. A highly selective “turn-on” response was obtained towards Al3+ ions, and this was used for real sample analysis and development of paper test strips.

A turn-on fluorescent probe for phytic acid based on ferric ion-modulated glutathione-capped silver nanoclusters

2016 ◽  
Vol 8 (34) ◽  
pp. 6382-6387 ◽  
Author(s):  
Q. Chen ◽  
M. Li ◽  
F. Zhang ◽  
R. Li ◽  
G. Chen ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Phytic Acid ◽  
Fluorescence Detection ◽  
Silver Nanoclusters ◽  
Ferric Ion ◽  
Real Samples ◽  
Turn On ◽  
Detection Assay ◽  
High Detection

A sensitive fluorescence detection assay for phytic acid (PA) in real samples was developed based on Fe3+-modulated GSH@AgNCs, with high detection selectivity, repeatability, and stability.

scholarly journals A 2-Hydroxy-1-Naphthaldehyde Schiff Base for Turn-on Fluorescence Detection of Zn2+ based on PET Mechanism

2021 ◽  
Author(s):  
Xinyue Mu ◽  
Liping Shi ◽  
Liqiang Yan ◽  
Ningli Tang
Keyword(s):  
Schiff Base ◽  
Detection Limit ◽  
Human Body ◽  
Rapid Detection ◽  
Zinc Ion ◽  
Living Cells ◽  
Quantitative Detection ◽  
Real Samples ◽  
Turn On ◽  
Low Cytotoxicity

Abstract Zinc ion is closely related to human health. Its content in human body is small, while the effect is large. However, it is not the more the better, must be in a scientific balance. Therefore, it is significant to the rapid detection of Zn2+ in the environment and organism. Herein, a fluorescent probe based on 2-hydroxy-1-naphthalene formaldehyde and furan-2-carbohydrazide was conveniently synthesized via Schiff base reaction. And this probe has been successfully applied to the accurate and quantitative detection of Zn2+ in real samples, showing turn on fluorescence, good selectivity, very low detection limit, real time response and reusability. In addition, this probe has the potential application to trace Zn2+ in living cells with low cytotoxicity.

scholarly journals A New “Turn-On” Fluorescence Probe for Al3+ Detection and Application Exploring in Living Cell and Real Samples

2019 ◽  
Vol 9 (3) ◽  
pp. 577 ◽  
Author(s):  
Zhi-Yan Gao ◽  
Cui-Jiao Zhang ◽  
Xian Zhang ◽  
Shu Xing ◽  
Jin-Shui Yao ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
Fluorescence Spectra ◽  
High Selectivity ◽  
Fluorescence Probe ◽  
High Sensitivity ◽  
Intracellular Imaging ◽  
Real Samples ◽  
Turn On ◽  
Base Derivative ◽  
Analog Experiments

An excess of Al3+ will lead to biological disorders and even many diseases. Therefore, detecting the levels of Al3+ in the human body has drawn great attention for health monitoring. The fluorescence method has been broadly applied because of high sensitivity, real-time detection, and intracellular imaging. In this work, a new probe with “turn-on” fluorescence based on Schiff base derivative, 3,6-imine-triphenylamine-(9-ethyl) carbazole (ITEC), has been successfully synthesized and studied. The high selectivity and sensitivity of ITEC to Al3+ were verified by fluorescence spectra and the detection limit was 2.19 nmol/L. A 1:2 stoichiometry of ITEC-Al3+ was obtained by the 1H NMR spectra and Job’s plot. Furthermore, ITEC was successfully applied to the detection of Al3+ with different concentrations in living HeLa cells. The analog experiments about nature contamination of Al3+ in cells and real samples were finished.

A new salamo-based colorimetric and fluorescent turn-on sensor with aggregation-induced emission for the rapid and highly sensitive detection of cyanide in real samples

2020 ◽  
Vol 44 (48) ◽  
pp. 21038-21048
Author(s):  
Zhuang-Zhuang Chen ◽  
Ruo-Yu Li ◽  
Wen-Ze Zhang ◽  
Yang Zhang ◽  
Wen-Kui Dong
Keyword(s):  
Fluorescence Detection ◽  
Sensitive Detection ◽  
Dual Mode ◽  
Real Samples ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Turn On ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

A new, simple, and easy-to-manufacture highly selective and sensitive dual-mode sensor A1 with the aggregation-induced emission properties is used for CN− colorimetric and fluorescence detection.

A G-quadruplex based fluorescent oligonucleotide turn-on probe towards iodides detection in real samples

2017 ◽  
Vol 230 ◽  
pp. 432-440 ◽  
Author(s):  
Qian Li ◽  
Shuaihua Li ◽  
Xiu Chen ◽  
Liujiao Bian
Keyword(s):  
Real Samples ◽  
Turn On ◽  
G Quadruplex
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