A pyrene thiazole conjugate as a ratiometric chemosensor with high selectivity and sensitivity for tin (Sn4+) and its application in imaging live cells

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 56605-56614 ◽  
Author(s):  
Ajit Kumar Mahapatra ◽  
Sanchita Mondal ◽  
Kalipada Maiti ◽  
Saikat Kumar Manna ◽  
Rajkishor Maji ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
High Selectivity ◽  
Live Cells ◽  
Ratiometric Detection

A new pyrene thiazole-conjugate amine based fluoroionophore, PTC was developed for ratiometric detection of Sn4+ ion in organo-aqueous medium.

A ratiometric fluorogenic probe for the real-time detection of SO32−in aqueous medium: application in a cellulose paper based device and potential to sense SO32−in mitochondria

The Analyst ◽  
2018 ◽  
Vol 143 (1) ◽  
pp. 250-257 ◽  
Author(s):  
Soham Samanta ◽  
Senjuti Halder ◽  
Poulomi Dey ◽  
Utsab Manna ◽  
Aiyagari Ramesh ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Real Time ◽  
Water Soluble ◽  
Live Cells ◽  
The Real ◽  
Cellulose Paper ◽  
Fluorogenic Probe ◽  
Ratiometric Detection ◽  
Real Time Detection

A new water soluble and fluorogenic probe (L) that can demonstrate the specific ratiometric detection of a SO2derivative (SO32−) in 100% aqueous medium and live cells has been designed and synthesized.

A coumarin-based colorimetric and fluorescent dual probe for palladium(ii) ions that can be used in live cells

2017 ◽  
Vol 41 (16) ◽  
pp. 8026-8030 ◽  
Author(s):  
Xiang-Zhu Chen ◽  
Xiao-Dong Ma ◽  
Hong-Mei Wang ◽  
Mian Wang ◽  
Yuan-Yuan Zhang ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
High Selectivity ◽  
High Sensitivity ◽  
Live Cells ◽  
Oxime Ether ◽  
Dual Probe

The new sensor containing oxime-ether can detect Pd2+with high sensitivity and high selectivity in aqueous medium.

scholarly journals A hybrid upconversion nanoprobe for ratiometric detection of aliphatic biogenic amines in aqueous medium

2021 ◽  
Author(s):  
Shilpi Jaiswal ◽  
Subhankar Kundu ◽  
Sujoy Bandyopadhyay ◽  
Abhijit Patra
Keyword(s):  
Aqueous Medium ◽  
Biogenic Amines ◽  
Real Time ◽  
Inorganic Hybrid ◽  
The Real ◽  
Ratiometric Detection ◽  
Real Time Detection

An organic–inorganic hybrid upconversion nanoprobe was developed for the real-time detection of aliphatic biogenic amines in an aqueous medium, adulterated milk, and rotten fish.

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.

Fast and sensitive fluorescent probe for ratiometric detection of hydrogen sulfide in mitochondria

2019 ◽  
Vol 11 (2) ◽  
pp. 232-235 ◽  
Author(s):  
Na Jiang ◽  
Bin Wang ◽  
Tao Liu ◽  
Qingyu Liu ◽  
Qin Wei ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Response Time ◽  
Fluorescent Probe ◽  
High Selectivity ◽  
Fluorescent Dye ◽  
Rapid Response ◽  
Ratiometric Detection ◽  
In Cells

A hemicyanine-based fluorescent dye, Mito-BT, was developed to ratiometrically detect H2S. This dye was of high selectivity, photostability and sensitivity with a rapid response time of 10 seconds. In addition, Mito-BT was localized in mitochondria, making it a promising probe for detecting H2S in cells.

A novel fluorescent peptidyl probe for highly sensitive and selective ratiometric detection of Cd(ii) in aqueous and bio-samplesviametal ion-mediated self-assembly

2018 ◽  
Vol 42 (22) ◽  
pp. 18143-18151 ◽  
Author(s):  
Kwan Ho Jung ◽  
Semin Oh ◽  
Joohee Park ◽  
Yu Jin Park ◽  
See-Hyoung Park ◽  
...  
Keyword(s):  
Self Assembly ◽  
Live Cells ◽  
Self Assembling ◽  
Highly Sensitive ◽  
Ratiometric Detection

A fluorescent peptidyl probe based on a Cd(ii)-triggered self-assembling process was proposed for ratiometric detection for Cd(ii) in urine and live cells.

Pyrazoloanthrone-functionalized fluorescent copolymer for the detection and rapid analysis of nitroaromatics

2021 ◽  
Vol 5 (1) ◽  
pp. 238-248
Author(s):  
S. Saravanan ◽  
Rafiq Ahmad ◽  
S. Kasthuri ◽  
Kunal Pal ◽  
S. Raviteja ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
High Selectivity ◽  
Rapid Analysis ◽  
Fluorescent Copolymer

Pyrazoloanthrone functionalized copolymer exhibit high selectivity and sensitivity towards TNP in aqueous medium in presence of other competitive explosive analytes.

A highly selective fluorescent chemosensor based on naphthalimide and Schiff base units for Cu2+ detection in aqueous medium

2017 ◽  
Vol 72 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Yuling Xu ◽  
Stephen Opeyemi Aderinto ◽  
Huilu Wu ◽  
Hongping Peng ◽  
Han Zhang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescence Quenching ◽  
Aqueous Medium ◽  
High Selectivity ◽  
Photophysical Properties ◽  
Aqueous Media ◽  
Medium Ph ◽  
Absorption And Fluorescence Spectroscopy ◽  
High Fluorescence ◽  
Base Units

AbstractA new Schiff base, 4-allylamine-N-(N-5-methylsalicylidene)-1,8-naphthalimide (1), has been designed and synthesized by combining a 1,8-naphthalimide moiety as a fluorophore and a Schiff base as a recognition group. Its photophysical properties were investigated by absorption and fluorescence spectroscopy, and this sensor exhibits a high fluorescence quantum yield of 0.75–0.91 inorganic solvents of different polarity. It also shows high selectivity for Cu2+ over other ions with fluorescence quenching in aqueous medium (pH=7.2). The reason for this phenomenon (fluorescence quenching) is attributed to the formation of a 1:1 complex between 1 and Cu2+ according to the Job plot and fluorescence titration. The sensor can be applied to the quantification of Cu2+ in a linear fashion from 0.5 to 5 μM with a detection limit of 0.23 μM. Additionally, the association constant (Ka) between Cu2+ and 1 is 1.328×106 M−1 in aqueous media.

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