D–π–A chalcone analogue as a metal ion selective turn-on-off-on fluorescent chemosensor with cellular imaging and corrosion protection

New piperazine-based aminonaphthalimide imidazolium podands as fluorescent chemosensor was designed and synthesized for selectively sensing Cu(ClO4)2 and Cu(NO3)2 over a wide range of tested metal ion pairs.

Download Full-text

Synthesis and characterization of a highly selective turn-on fluorescent chemosensor for Sn2+ derived from diimine Schiff base

Synthetic Metals ◽

10.1016/j.synthmet.2020.116668 ◽

2021 ◽

Vol 272 ◽

pp. 116668

Author(s):

Feyza Kolcu ◽

Diğdem Erdener ◽

İsmet Kaya

Keyword(s):

Schiff Base ◽

Fluorescent Chemosensor ◽

Synthesis And Characterization ◽

Turn On

Download Full-text

A dual‐channel “turn‐on” fluorescent chemosensor for high selectivity and sensitivity detection of CN¯ based on a coumarin‐Schiff base derivative in aqueous system

Luminescence ◽

10.1002/bio.4058 ◽

2021 ◽

Author(s):

Wen‐Min Ding ◽

Ya Wu ◽

Shu‐Zhen Zhang ◽

Jing Li ◽

Li Xu ◽

...

Keyword(s):

Schiff Base ◽

High Selectivity ◽

Aqueous System ◽

Fluorescent Chemosensor ◽

Turn On ◽

Dual Channel ◽

Base Derivative ◽

Sensitivity Detection

Download Full-text

Chromogenic ‘naked eye’ and fluorogenic ‘turn on’ sensor for mercury metal ion using thiophene-based Schiff base

RSC Advances ◽

10.1039/c5ra11043b ◽

2015 ◽

Vol 5 (81) ◽

pp. 65731-65738 ◽

Cited By ~ 36

Author(s):

Divya Singhal ◽

Neha Gupta ◽

Ashok Kumar Singh

Keyword(s):

Schiff Base ◽

Binding Affinity ◽

Metal Ion ◽

Limit Of Detection ◽

Electrochemical Behaviour ◽

Naked Eye ◽

Turn On

2-((3-Methylthiophen-2-yl)methyleneamino)benzenethiol (Probe 1) is selective for Hg2+. The binding affinity of Hg2+ with Probe 1 was confirmed by DFT and electrochemical behaviour. The limit of detection was 20 μM with 2 : 1 stoichiometry of 1 + Hg2+ complex.

Download Full-text

Cysteine-based fluorescence “turn-on” sensors for Cu2+ and Ag+

RSC Advances ◽

10.1039/c4ra10936h ◽

2014 ◽

Vol 4 (99) ◽

pp. 56539-56542 ◽

Cited By ~ 3

Author(s):

V. Haridas ◽

P. P. Praveen Kumar ◽

Cherumuttathu H. Suresh

Keyword(s):

Amino Acid ◽

Computational Methods ◽

Metal Ion ◽

Ion Binding ◽

Metal Ion Binding ◽

Turn On ◽

Fluorescence Turn On

Amino acid cysteine was transformed to fluorescent turn-on sensors for Cu+2 and Ag+. The metal ion binding was studied in detail by spectroscopic, microscopic, calorimetric and computational methods.

Download Full-text

A Chromone Based Fluorescent Probe for the Effective Detection of Aluminium Ion

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2020.17463 ◽

2020 ◽

Vol 20 (5) ◽

pp. 2840-2846

Author(s):

Hyorim Kim ◽

Ramalingam Manivannan ◽

Young-A Son

Keyword(s):

Metal Ion ◽

Color Change ◽

Test Strip ◽

Phenyl Hydrazine ◽

Mass Spectral ◽

H Nmr ◽

Turn On ◽

Molecular Charge ◽

Intra Molecular Charge Transfer ◽

Significant Interference

A new chromone moiety fused with phenyl hydrazine carboxamide as a binding site for metal ion was designed and synthesized as a colorimetric/fluorimetric probe for selective sensing of Al3+ ion. The absorption and fluorescence spectral results showed selective and sensitive recognition of Al3+ with no significant interference from other competitive metal ions. The addition of Al3+ to R brought a prompt color change from colorless to yellow and the turn-on fluorescence response with Al3+ among different cations was studied. The visible color change and turn-on fluorescence Al3+ ion with R was attributed to the intra molecular charge transfer transition. The plausible binding nature of the receptor with Al3+ has also been anticipated by the results of 1H NMR and mass spectral analysis. For the practical effectiveness, test strip prepared using probe R was successfully applied to monitor the presence of Al3+ ion in aqueous medium.

Download Full-text