A novel chemosensor with visible light excitability for sensing CN− in aqueous medium and living cells via a Cu2+ displacement approach

2017 ◽  
Vol 9 (2) ◽  
pp. 259-266 ◽  
Author(s):  
Liyuan Qin ◽  
Lingjie Hou ◽  
Jia Feng ◽  
Jianbin Chao ◽  
Yu Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Aqueous Medium ◽  
Living Cells ◽  
Receptor System ◽  
System L ◽  
Displacement Approach

A new and simple julolidine based molecular receptor system L linked to 4-phenylsemicarbazide through an imine moiety has been synthesized and characterized.

Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels

1999 ◽  
Vol 64 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Gabriel Čík ◽  
František Šeršeň ◽  
Alena Bumbálová
Keyword(s):  
Reactive Oxygen Species ◽  
Ion Exchange ◽  
Visible Light ◽  
Aqueous Medium ◽  
Exchange Reaction ◽  
Epr Spectroscopy ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Water Reduction ◽  
Ion Exchange Reaction

The formation of reactive oxygen species due to irradiation by a visible light of the polythiophene deposited in ZSM-5 zeolite channels in aqueous medium has been studied. Polymerization of thiophene was carried out in zeolite channels after the ion-exchange reaction of Na+ for Fe3+. By means of EPR spectroscopy, the temporarily generated 1O2 in irradiated aqueous medium was proved. The formation of O2-• was confirmed by the reduction of Fe3+-cytochrome c. Irradiation led to the water reduction to hydrogen.

Visible light-induced direct conversion of aldehydes into nitriles in aqueous medium using Co@g-C3N4 as photocatalyst

2019 ◽  
Vol 119 ◽  
pp. 76-81 ◽  
Author(s):  
Fooleswar Verma ◽  
Prashant Shukla ◽  
Smita R. Bhardiya ◽  
Manorama Singh ◽  
Ankita Rai ◽  
...  
Keyword(s):  
Visible Light ◽  
Aqueous Medium ◽  
Direct Conversion

scholarly journals Fluorimetric and CD Recognition between Various ds-DNA/RNA Depends on a Cyanine Connectivity in Cyanine-guanidiniocarbonyl-pyrrole Conjugate

Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4470
Author(s):  
Tamara Šmidlehner ◽  
Marta Košćak ◽  
Ksenija Božinović ◽  
Dragomira Majhen ◽  
Carsten Schmuck ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Cell Lines ◽  
Human Tumor ◽  
Living Cells ◽  
Normal Lung ◽  
Thiazole Orange ◽  
Induced Circular Dichroism ◽  
Cytotoxic Effects ◽  
Preliminary Screening ◽  
Lead Compounds

Two novel isosteric conjugates of guanidiniocarbonyl-pyrrole and 6-bromo-TO (thiazole orange) were prepared, differing only in linker connectivity to cyanine (benzothiazole nitrogen vs. quinoline nitrogen). The quinoline analog was significantly more susceptible to aggregation in an aqueous medium, which resulted in induced circular dichroism (ICD; λ = 450–550 nm) recognition between A-T(U) and G-C basepair containing polynucleotides. The benzothiazole-isostere showed pronounced (four-fold) fluorimetric selectivity toward ds-RNA in comparison to any ds-DNA, at variance to its quinoline-analogue fluorescence being weakly selective to GC-DNA. Preliminary screening on human tumor and normal lung cell lines showed that both dyes very efficiently enter living cells and accumulate in mitochondria, causing moderate cytotoxic effects, and thus could be considered as lead compounds toward novel theragnostic mitochondrial dyes.

A smart rhodamine–pyridine conjugate for bioimaging of thiocyanate in living cells

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103350-103357 ◽  
Author(s):  
Sandip Mandal ◽  
Animesh Sahana ◽  
Arnab Banerjee ◽  
Damir A. Safin ◽  
Maria G. Babashkina ◽  
...  
Keyword(s):  
Visible Light ◽  
Living Cells ◽  
Kidney Cells ◽  
Human Embryonic Kidney ◽  
Eye Detection ◽  
Human Embryonic Kidney Cells ◽  
Naked Eye ◽  
Naked Eye Detection

A rhodamine–pyridine conjugate, REDA-2PC, can selectively monitor NCS− in human embryonic kidney cells 293. Visible light excitable probe allows fluorescence and naked eye detection of nanomolar NCS−.

Fluorinated near-infrared fluorescent probes for specific detection of Hg2+ in an aqueous medium and mitochondria of living cells

2017 ◽  
Vol 41 (17) ◽  
pp. 8899-8904 ◽  
Author(s):  
Lei Long ◽  
Xu Tan ◽  
Shenglin Luo ◽  
Chunmeng Shi
Keyword(s):  
Aqueous Medium ◽  
Fluorescent Probe ◽  
Fluorescent Probes ◽  
Near Infrared ◽  
Living Cells ◽  
Specific Detection

A near-infrared fluorescent probe (IR-DFT) could be used for specifically and sensitively detecting Hg2+ in mitochondria of living cells.

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