Xanthurenic acid: a natural ionophore with high selectivity and sensitivity for potassium ions in an aqueous solution

2016 ◽  
Vol 40 (3) ◽  
pp. 1930-1934 ◽  
Author(s):  
M. Raju ◽  
Tapasya J. Patel ◽  
Ratish R. Nair ◽  
Pabitra B. Chatterjee
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Metal Ions ◽  
High Selectivity ◽  
Xanthurenic Acid ◽  
Potassium Ions ◽  
Turn On ◽  
Tryptophan Metabolite

Synopsis: A well-known tryptophan metabolite, xanthurenic acid, a natural non-fluorescent intermediate siderophore, showed a very selective turn-on response to K+ over other competing metal ions and the detection limit of this natural ionophore was found to be 53 nM at physiological pH.

Colorimetric and Fluorescent Probe for Hypochlorite with High Selectivity

2013 ◽  
Vol 295-298 ◽  
pp. 475-478 ◽  
Author(s):  
Zhi Xiang Han ◽  
Ming Hui Du ◽  
Guo Xi Liang ◽  
Xiang Yang Wu
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Solution ◽  
Detection Limit ◽  
Fluorescent Probe ◽  
Rhodamine B ◽  
High Selectivity ◽  
Reactive Oxygen ◽  
Living Cells ◽  
Oxygen Species ◽  
Turn On

Rhodamine B thiohydrazide (RBS) was firstly employed as turn-on fluorescent probe for hypochlorite in aqueous solution and living cells. It exhibits a stable response to hypochlorite from 1.0×10-6to 1.0×10-5M with a detection limit of 3.3×10-7M. The response of this probe to hypochlorite is fast and highly selective compared with other reactive oxygen species (such as.OH,1O2, H2O2) and other common anions (such as X-, ClO2-, ClO4-, NO3-, NO2-, OH-, Ac-, CO32-, SO42-).

scholarly journals A new 3-hydroxyphthalimide-based turn-on fluorescent probe for Hg2+ detection in aqueous solution

2020 ◽  
Vol 44 (5-6) ◽  
pp. 349-353
Author(s):  
Xue-Tao Pan ◽  
Qiao Li ◽  
Yuan-Yuan Xu ◽  
Sheng-Li Hu
Keyword(s):  
Aqueous Solution ◽  
Excited State ◽  
Detection Limit ◽  
Fluorescent Probe ◽  
High Selectivity ◽  
Intramolecular Proton Transfer ◽  
Recognition Mechanism ◽  
Turn On ◽  
Transfer Mechanisms ◽  
Analytical Detection

A new 3-hydroxyphthalimide-based turn-on fluorescent probe is designed and synthesized. This probe can be used to determine the presence of Hg2+ ions by fluorescence spectroscope with high selectivity over other metal ions in aqueous solution. The analytical detection limit for Hg2+ is as low as 6.5 × 10−7 M. The recognition mechanism is attributed to Hg2+-promoted carbonothioate group cleavage and a subsequent excited-state intramolecular proton transfer mechanisms.

A reusable fluorescent sensor from electrosynthesized water-soluble oligo(1-pyrenesulfonic acid) for effective detection of Fe3+

2018 ◽  
Vol 42 (24) ◽  
pp. 19450-19457 ◽  
Author(s):  
Nannan Jian ◽  
Kaiwen Lin ◽  
Bin Guo ◽  
Ge Zhang ◽  
Ximei Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
High Selectivity ◽  
Fluorescent Sensor ◽  
Water Soluble ◽  
Low Detection Limit

Electrosynthesized oligo(1-pyrenesulfonic acid) displays high selectivity, low detection limit and outstanding reversibility in the detection of Fe3+ in aqueous solution.

scholarly journals A Turn-On Fluorescent Probe for Sensitive Detection of Cysteine in a Fully Aqueous Environment and in Living Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaohua Ma ◽  
Guoguang Wu ◽  
Yuehua Zhao ◽  
Zibo Yuan ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Fluorescent Probe ◽  
High Selectivity ◽  
Coumarin Derivative ◽  
Living Cells ◽  
Sensitive Detection ◽  
Aqueous Environment ◽  
Test Probe ◽  
Aqueous Buffer ◽  
Turn On

We reported here a turn-on fluorescent probe (1) for the detection of cysteine (Cys) by incorporating the recognition unit of 2,4-dinitrobenzenesulfonyl ester (DNBS) to a coumarin derivative. The structure of the obtained probe was confirmed by NMR and HRMS techniques. The probe shows a remarkable fluorescence off-on response (∼52-fold) by the reaction with Cys in 100% aqueous buffer. The sensing mechanism was verified by the HPLC test. Probe 1 also displays high selectivity towards Cys. The detection limit was calculated to be 23 nM. Moreover, cellular experiments demonstrated that the probe is highly biocompatible and can be used for monitoring intracellular Cys.

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.

1,8-Naphthyridine Modified Rhodamine B Derivatives: Turn-On Colorimetric Sensor for Cu2+

2014 ◽  
Vol 881-883 ◽  
pp. 1079-1082 ◽  
Author(s):  
Gao Zhang Gou ◽  
He Ping Yan ◽  
Shi Juan Xu ◽  
Na Wu ◽  
Bo Zhou ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Metal Complex ◽  
Rhodamine B ◽  
Ring Opening ◽  
High Selectivity ◽  
Colour Change ◽  
Detection Mechanism ◽  
Biologically Relevant ◽  
Turn On

A 1,8-naphthyridine modified rhodamine B derivative, one Cu2+-selective chemosensors was designed, synthesized and characterized, which display a high selectivity for Cu2+among environmentally and biologically relevant metal ions. It can detect Cu2+in aqueous solution selectively with a dramatic colour change from colorless to magenta. The detection mechanism involves a ring-opening process as a consequence of metal complex formation. Jobs plots study indicated that the chemosensor chelated Cu2+with 2:1 stoichiometry.

A novel turn-on Schiff-base fluorescent sensor for aluminum(iii) ions in living cells

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 107012-107019 ◽  
Author(s):  
Jianfei Tian ◽  
Xiaxia Yan ◽  
Hui Yang ◽  
Fuli Tian
Keyword(s):  
Schiff Base ◽  
Metal Ions ◽  
High Selectivity ◽  
Fluorescence Enhancement ◽  
Fluorescent Sensor ◽  
Living Cells ◽  
Excitation Wavelength ◽  
Turn On

Quinoline Schiff base L exhibits a more than 38-fold fluorescence enhancement after addition of Al3+ ions at an excitation wavelength of 373 nm, and shows a high selectivity for Al3+ over other metal ions.

Post-synthetic modification of a Tb-based metal–organic framework for highly selective and sensitive detection of metal ions in aqueous solution

2019 ◽  
Vol 43 (26) ◽  
pp. 10232-10236 ◽  
Author(s):  
Mengjie Huangfu ◽  
Xueqin Tian ◽  
Shuang Zhao ◽  
Pengyan Wu ◽  
Huacong Chu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Metal Ions ◽  
Metal Organic Framework ◽  
Sensitivity Enhancement ◽  
Sensitive Detection ◽  
Metal Organic ◽  
Organic Framework

Post-synthetic modification of a MOF led to selectivity and sensitivity enhancement for Fe3+ detection in water with a detection limit of 70 nM.

Conjugation-induced fluorescence labelling of mesoporous silica nanoparticles for the sensitive and selective detection of copper ions in aqueous solution

2014 ◽  
Vol 38 (12) ◽  
pp. 6017-6024 ◽  
Author(s):  
Jingjing Cui ◽  
Shangfeng Wang ◽  
Kai Huang ◽  
Yongsheng Li ◽  
Wenru Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
High Selectivity ◽  
Copper Ions ◽  
Mesoporous Silica Nanoparticles ◽  
Selective Detection ◽  
Fluorescence Labelling

A newly developed fluorescent “on–off” chemosensor presents high selectivity towards Cu2+ with detection limit as low as 0.28 μM.

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