Conventional fluorophore-free dual pH- and thermo-responsive luminescent alternating copolymer

2016 ◽  
Vol 7 (45) ◽  
pp. 6895-6900 ◽  
Author(s):  
Biswajit Saha ◽  
Kamal Bauri ◽  
Arijit Bag ◽  
Pradip K. Ghorai ◽  
Priyadarsi De
Keyword(s):  
Aqueous Medium ◽  
Free Water ◽  
Water Soluble ◽  
Alternating Copolymer ◽  
Fluorescent Copolymer

Herein, we have designed and synthesized a novel traditional fluorophore-free water-soluble fluorescent copolymer based on a poly(maleimide-alt-styrene) skeleton, which responds to both pH and temperature in 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.

The design and properties study of a novel styryl‐pyridinium‐based water‐soluble fluorescent copolymer as tracing agent

2018 ◽  
Vol 136 (7) ◽  
pp. 47062
Author(s):  
Liwei Yan ◽  
Chunjiao Su ◽  
Linghong Shen ◽  
Mingqian Lv ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Water Soluble ◽  
Fluorescent Copolymer

scholarly journals Synthesis of a Novel Series of Cu(I) Complexes Bearing Alkylated 1,3,5-Triaza-7-phosphaadamantane as Homogeneous and Carbon-Supported Catalysts for the Synthesis of 1- and 2-Substituted-1,2,3-triazoles

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2702
Author(s):  
Ivy L. Librando ◽  
Abdallah G. Mahmoud ◽  
Sónia A. C. Carabineiro ◽  
M. Fátima C. Guedes da Silva ◽  
Carlos F. G. C. Geraldes ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Sodium Azide ◽  
Supported Catalysts ◽  
Cycloaddition Reaction ◽  
Water Soluble ◽  
Terminal Alkynes ◽  
One Pot ◽  
Catalytic Systems ◽  
Immobilized Catalyst ◽  
High Yields

The N-alkylation of 1,3,5-triaza-7-phosphaadamantane (PTA) with ortho-, meta- and para-substituted nitrobenzyl bromide under mild conditions afforded three hydrophilic PTA ammonium salts, which were used to obtain a new set of seven water-soluble copper(I) complexes. The new compounds were fully characterized and their catalytic activity was investigated for the low power microwave assisted one-pot azide–alkyne cycloaddition reaction in homogeneous aqueous medium to obtain disubstituted 1,2,3-triazoles. The most active catalysts were immobilized on activated carbon (AC), multi-walled carbon nanotubes (CNT), as well as surface functionalized AC and CNT, with the most efficient support being the CNT treated with nitric acid and NaOH. In the presence of the immobilized catalyst, several 1,4-disubstituted-1,2,3-triazoles were obtained from the reaction of terminal alkynes, organic halides and sodium azide in moderate yields up to 80%. Furthermore, the catalyzed reaction of terminal alkynes, formaldehyde and sodium azide afforded 2-hydroxymethyl-2H-1,2,3-triazoles in high yields up to 99%. The immobilized catalyst can be recovered and recycled through simple workup steps and reused up to five consecutive cycles without a marked loss in activity. The described catalytic systems proceed with a broad substrate scope, under microwave irradiation in aqueous medium and according to “click rules”.

scholarly journals Cyclopentadienone Iron Tricarbonyl Complexes-Catalyzed Hydrogen Transfer in Water

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 421 ◽  
Author(s):  
Daouda Ndiaye ◽  
Sébastien Coufourier ◽  
Mbaye Diagne Mbaye ◽  
Sylvain Gaillard ◽  
Jean-Luc Renaud
Keyword(s):  
Metal Complexes ◽  
Hydrogen Transfer ◽  
Low Cost ◽  
Pure Water ◽  
Free Water ◽  
Water Soluble ◽  
Tricarbonyl Complex ◽  
Reaction Conditions ◽  
Catalytic Systems ◽  
Iron Tricarbonyl

The development of efficient and low-cost catalytic systems is important for the replacement of robust noble metal complexes. The synthesis and application of a stable, phosphine-free, water-soluble cyclopentadienone iron tricarbonyl complex in the reduction of polarized double bonds in pure water is reported. In the presence of cationic bifunctional iron complexes, a variety of alcohols and amines were prepared in good yields under mild reaction conditions.

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.

Peroxomolybdate supported on water soluble polymers as efficient catalysts for green and selective sulfoxidation in aqueous medium

2016 ◽  
Vol 425 ◽  
pp. 21-30 ◽  
Author(s):  
Jeena Jyoti Boruah ◽  
Kabirun Ahmed ◽  
Srewashi Das ◽  
Sandhya Rani Gogoi ◽  
Gangutri Saikia ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers

scholarly journals Design, synthesis and investigation of water-soluble hemi-indigo photoswitches for bioapplications

2019 ◽  
Vol 15 ◽  
pp. 2822-2829
Author(s):  
Daria V Berdnikova
Keyword(s):  
Aqueous Medium ◽  
Rna Binding ◽  
Water Soluble ◽  
Synthetic Approach ◽  
Fluorescent Properties ◽  
Design Synthesis

A series of hemi-indigo derivatives was synthesized and their photoswitching properties in aqueous medium were studied. The dimethoxy hemi-indigo derivative with the best photochromic performance in water was identified as a promising platform for the development of photoswitchable binders for biomolecules. The synthetic approach towards the introduction of the alkylamino pendant to the dimethoxy hemi-indigo core was developed that allowed to obtain an RNA-binding hemi-indigo derivative with photoswitchable fluorescent properties.

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