Novel fluorescent chemosensing of CN− anions with nanomolar detection using the Zn2+–isonicotinohydrazide metal complex

RSC Advances ◽  
2014 ◽  
Vol 4 (79) ◽  
pp. 41802-41806 ◽  
Author(s):  
Nilesh Khairnar ◽  
Kundan Tayade ◽  
Shilpa Bothra ◽  
Suban K. Sahoo ◽  
Jasminder Singh ◽  
...  
Keyword(s):  
Metal Complex ◽  
Aqueous Medium ◽  
Selective Detection ◽  
Nanomolar Detection

A novel chemosensor based on the Zn2+–isonicotinohydrazide complex ‘(ZnL)’ was developed for the selective detection of cyanide (CN−) over other tested anions, such as HSO4−, F−, Cl−, Br−, I−, NO3−, PO43−, SO42−, SCN−, S2−, CH3COO− and H2PO4− in 100% aqueous medium.

scholarly journals Graphene oxide-derived carbonaceous sensor: turn-off fluorescence sensor for nanomolar detection of ruthenium ions in aqueous medium

2021 ◽  
Author(s):  
Jeyaraj Belinda Asha ◽  
Murugan Karthik ◽  
Palaniswamy Suresh
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Fluorescence Sensor ◽  
Water Medium ◽  
Selective Detection ◽  
Nanomolar Detection ◽  
Modified Graphene Oxide ◽  
Modified Graphene

A novel covalently modified graphene oxide has been synthesised and demonstrated as a carbonaceous chemosensor for the selective detection of Ru(iii) in complete water medium.

scholarly journals Selective Detection of nano-molar range Noxious Anions in Water by a Luminescent Metal-Organic Framework

2021 ◽  
Author(s):  
Sudip Kumar Mondal ◽  
Partha Mahata ◽  
Pooja Daga ◽  
Sourav Sarkar ◽  
Prakash Majee ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Metal Organic Framework ◽  
Selective Detection ◽  
Recognition Ability ◽  
Oxo Anions ◽  
Metal Organic ◽  
Organic Framework

A new metal-organic framework (MOF) showed excellent recognition ability towards five toxic oxo-anions viz. arsenate (HAsO42-), phosphate (PO43-), permanganate (MnO4-), chromate (CrO42-) and dichromate (Cr2O72-) in aqueous medium upon irradiation...

scholarly journals Selective Colorimetric Sensors for Cyanide and Acetate Ion in Partially Aqueous Medium

2018 ◽  
Author(s):  
Divya Singhal ◽  
Neha Gupta ◽  
Ashok Kumar Singh
Keyword(s):  
Detection Limit ◽  
Aqueous Medium ◽  
1H Nmr ◽  
Binding Constant ◽  
High Selectivity ◽  
Good Sensitivity ◽  
Dft Studies ◽  
Nmr Titration ◽  
1H Nmr Titration ◽  
Nanomolar Detection

4-(thiazol-2-yldiazenyl)phenol (L1) and 2-((4-hydroxyphenyl) diazenyl)-5-nitrophenol (L2) based on azo phenol were synthesised and used as selective colorimetric sensor for CN- and AcO− ion in DMSO/H2O-HEPES (v/v; 1:1, pH–7.3 ± 0.2) and showed good sensitivity with large red shifts and nanomolar detection limit for CN- and AcO- ion. The stoichiometry of L1 with CN−/AcO− ion was found to be 1:1 and L2 with CN−/AcO− ion was found to be 1:2. Binding constant for L1+ CN−, L1 + AcO−, L2 + CN− and L2 + AcO− were calculated by B-H plot as 1.6 × 103, 8.0 × 102, 8.4 × 103 and 1.7 × 102 respectively. L2 showed high selectivity towards CN− ion with low detection limit of 81 nM and large binding constant. In addition, 1H NMR titration and DFT studies also supported the deprotonation mechanism of receptors in the presence of selective anions.

scholarly journals Nanomolar Detection of H2S in an Aqueous Medium: Application in Endogenous and Exogenous Imaging of HeLa Cells and Zebrafish

ACS Omega ◽  
2020 ◽  
Vol 5 (31) ◽  
pp. 19896-19904
Author(s):  
Sanay Naha ◽  
Natesan Thirumalaivasan ◽  
Somenath Garai ◽  
Shu-Pao Wu ◽  
Sivan Velmathi
Keyword(s):  
Aqueous Medium ◽  
Hela Cells ◽  
Nanomolar Detection

scholarly journals Rhodamine scaffolds as real time chemosensors for selective detection of bisulfite in aqueous medium

2019 ◽  
Vol 18 (6) ◽  
pp. 1342-1349 ◽  
Author(s):  
Sumit Roy ◽  
Ashim Maity ◽  
Naren Mudi ◽  
Milan Shyamal ◽  
Ajay Misra
Keyword(s):  
Aqueous Medium ◽  
Real Time ◽  
Fluorescent Probes ◽  
Selective Detection ◽  
Turn On

Rhodamine and its derivatives have been widely used in designing fluorescent ‘turn on’ cation sensors, while very few rhodamine based fluorescent probes have been reported to date for the detection of anions in water.

Trace-level and selective detection of uric acid by a luminescent Zn (II) based 1D coordination polymer in aqueous medium

2018 ◽  
Vol 365 ◽  
pp. 125-132 ◽  
Author(s):  
Abir Maji ◽  
Prakash Majee ◽  
Debal Kanti Singha ◽  
Ananta Kumar Ghosh ◽  
Sudip Kumar Mondal ◽  
...  
Keyword(s):  
Uric Acid ◽  
Coordination Polymer ◽  
Aqueous Medium ◽  
Selective Detection ◽  
Trace Level ◽  
1D Coordination Polymer

Fluorescence Quenching of a Benzimidazolium-based Probe for Selective Detection of Picric Acid in Aqueous Medium

2016 ◽  
Vol 1 (8) ◽  
pp. 1756-1762 ◽  
Author(s):  
Sunita Joshi ◽  
Santosh Kumari ◽  
Eduardo Chamorro ◽  
Debi D. Pant ◽  
Rajeev Sakhuja
Keyword(s):  
Fluorescence Quenching ◽  
Aqueous Medium ◽  
Picric Acid ◽  
Selective Detection
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