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.

scholarly journals A Highly Selective Turn-On Fluorescent Probe for the Detection of Zinc

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3825
Author(s):  
Ling-Yi Shen ◽  
Xiao-Li Chen ◽  
Xian-Jiong Yang ◽  
Hong Xu ◽  
Ya-Li Huang ◽  
...  
Keyword(s):  
High Selectivity ◽  
Fluorescence Probe ◽  
Stoichiometric Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Turn On ◽  
Imine Nitrogen ◽  
System A ◽  
Plot Analysis ◽  
L System

A novel turn-on fluorescence probe L has been designed that exhibits high selectivity and sensitivity with a detection limit of 9.53 × 10−8 mol/L for the quantification of Zn2+. 1H-NMR spectroscopy and single crystal X-ray diffraction analysis revealed the unsymmetrical nature of the structure of the Schiff base probe L. An emission titration experiment in the presence of different molar fractions of Zn2+ was used to perform a Job’s plot analysis. The results showed that the stoichiometric ratio of the complex formed by L and Zn2+ was 1:1. Moreover, the molecular structure of the mononuclear Cu complex reveals one ligand L coordinates with one Cu atom in the asymmetric unit. On adding CuCl2 to the ZnCl2/L system, a Cu-Zn complex was formed and a strong quenching behavior was observed, which inferred that the Cu2+ displaced Zn2+ to coordinate with the imine nitrogen atoms and hydroxyl oxygen atoms of probe L.

A reaction-based fluorescent turn-on probe for Cu2+ in complete aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87110-87114 ◽  
Author(s):  
Dongjian Zhu ◽  
Yanghe Luo ◽  
Xiaowei Yan ◽  
Wei Xie ◽  
Wen Cai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Response Time ◽  
High Selectivity ◽  
High Sensitivity ◽  
Rapid Response ◽  
Turn On

FP can detect Cu2+ in complete aqueous solution with a rapid response time, high sensitivity, and high selectivity.

A Water-Solution Fluorescence Probe for H2O2 Based on Naphthalimide Derivative

2014 ◽  
Vol 1061-1062 ◽  
pp. 978-982
Author(s):  
You Ming Shen ◽  
Si Meng Yang ◽  
Li Chao Xi ◽  
Wen Yan Cao ◽  
Li Li Zhou ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Linear Response ◽  
High Selectivity ◽  
Fluorescence Probe ◽  
Water Solution ◽  
Water Soluble ◽  
Oxygen Species ◽  
Lower Detection Limit ◽  
Turn On ◽  
Lower Detection

A water-soluble fluorescent probe was described for detecting hydrogen peroxide with the naphthalimide derived as fluorophore and boronate moiety as recognition unit. The probe was developed as a turn-on fluorescent chemosensor with fast, high selectivity and sensitivity toward H2O2over other biological reactive oxygen species. What is more, the probe was linear response to H2O2concentration in the range of 2.5×10−8– 3.2×10−5M and lower detection limit down to 12 nM (S / N = 3) was obtained.

A Novel Material Fluorescence Probe Based on Covalently Functionalized Graphene Oxide by Aminocoumarin for Detection of CN−

NANO ◽  
2020 ◽  
Vol 15 (02) ◽  
pp. 2050022
Author(s):  
Wenhui Ma ◽  
Zhaochuan Yu ◽  
Zhongcai Li ◽  
Jing Wen ◽  
Baoru Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fluorescence Spectra ◽  
High Selectivity ◽  
Fluorescence Probe ◽  
Deionized Water ◽  
Selective Detection ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
The World ◽  
Novel Material

Owing to the hazardness, the sensitive and selective detection of cyanide (CN−) in water or water-containing systems has still been a puzzle plaguing scientists all around the world. In this paper, a novel fluorescence probe based on covalently functionalized graphene oxide (GO) by aminocoumarin for highly selective detection of CN− in deionized water was prepared under the action of EDC/NHS. This probe bears aminocoumarin group as the recognition site and fluorophore, and its fluorescence quantum yield is increased by 0.07. Simultaneously, by loading on GO, the dispersibility, selectivity and reversibility were soundly improved, which facilitated the detection process. The fluorescence spectra showed that the probe has high selectivity and sensitivity for cyanide, and has potential application in real water.

Synthesis of a BODIPY disulfonate near-infrared fluorescence-enhanced probe with high selectivity to endogenous glutathione and two-photon fluorescent turn-on through thiol-induced SNAr substitution

2018 ◽  
Vol 6 (19) ◽  
pp. 3023-3029 ◽  
Author(s):  
Xiang Xia ◽  
Ying Qian ◽  
Baoxing Shen
Keyword(s):  
Near Infrared ◽  
High Selectivity ◽  
Fluorescence Probe ◽  
Selective Detection ◽  
Near Infrared Fluorescence ◽  
Two Photon ◽  
Turn On

A BODIPY disulfonate BODIPY-diONs with two-photon fluorescent turn-on effect was developed as fluorescence probe for selective detection of glutathione over cysteine and homocysteine.

Phytic acid functionalized magnetic bimetallic metal–organic frameworks for phosphopeptide enrichment

2021 ◽  
Vol 9 (7) ◽  
pp. 1811-1820
Author(s):  
Shuang Yan ◽  
Bin Luo ◽  
Jia He ◽  
Fang Lan ◽  
Yao Wu
Keyword(s):  
Phytic Acid ◽  
Efficient Method ◽  
High Selectivity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Sensitivity ◽  
Phosphopeptide Enrichment ◽  
Metal Organic ◽  
Organic Framework

Novel bimetallic metal–organic framework nanocomposites were fabricated by a facile yet efficient method. The as-prepared nanomaterial exhibited high sensitivity and high selectivity toward phosphopeptides and good reusability of five cycles for enriching phosphopeptides.

A naked-eye visible and turn-on fluorescence probe for Fe3+ and its bioimaging application in living cells

2016 ◽  
Vol 237 ◽  
pp. 501-508 ◽  
Author(s):  
Yaming Liu ◽  
Jinyu Zhang ◽  
Jiaxi Ru ◽  
Xiang Yao ◽  
Yang Yang ◽  
...  
Keyword(s):  
Fluorescence Probe ◽  
Living Cells ◽  
Naked Eye ◽  
Turn On

A phthalocyanine-based fluorescent sensor for Zn2+ ion

2013 ◽  
Vol 17 (01n02) ◽  
pp. 99-103 ◽  
Author(s):  
Hui He ◽  
Jian-Yong Liu ◽  
Dennis K.P. Ng
Keyword(s):  
Metal Ions ◽  
Spectral Properties ◽  
Fluorescence Spectra ◽  
Near Infrared ◽  
Fluorescent Sensor ◽  
High Sensitivity ◽  
Absorption And Fluorescence Spectra

This paper describes the preparation and spectral properties of a near-infrared fluorophore in which two bis(2-picolyl)amino moieties are axially linked to a silicon(IV) phthalocyanine core. The effects of various metal ions on its absorption and fluorescence spectra have been examined. The results indicate that this compound shows a high sensitivity and moderate selectivity toward Zn2+ ion.

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