A nonconjugated macromolecular luminogen for speedy, selective and sensitive detection of picric acid in water

2017 ◽  
Vol 8 (46) ◽  
pp. 7180-7187 ◽  
Author(s):  
Kamal Bauri ◽  
Biswajit Saha ◽  
Jnansankar Mahanti ◽  
Priyadarsi De
Keyword(s):  
Picric Acid ◽  
Free Water ◽  
Water Soluble ◽  
Sensitive Detection ◽  
Aqueous Environment ◽  
Water Soluble Copolymer ◽  
Prompt Response

A conventional fluorophore-free water-soluble copolymer based on poly(styrene-alt-maleimide) has been found to be selective and sensitive detection of picric acid in a 100% aqueous environment with prompt response.

Selective and sensitive detection of picric acid based on a water-soluble fluorescent probe

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38328-38331 ◽  
Author(s):  
Haiqin Liang ◽  
Zhiyi Yao ◽  
Wenqi Ge ◽  
Yadong Qiao ◽  
Li Zhang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Picric Acid ◽  
Aqueous Media ◽  
Water Soluble ◽  
Sensitive Detection ◽  
Fluorescent Detection ◽  
Test Strips

A pyrene-based probe has been applied for the fluorescent detection of picric acid in aqueous media and on test strips.

Direct photoreactive immobilization of water-soluble phospholipid polymers on substrates in an aqueous environment

2021 ◽  
Vol 199 ◽  
pp. 111507
Author(s):  
Kyoko Fukazawa ◽  
Kazushi Tsuji ◽  
Yuuki Inoue ◽  
Kazuhiko Ishihara
Keyword(s):  
Water Soluble ◽  
Aqueous Environment

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.

scholarly journals Interactions between 4-thiothymidine and water-soluble cyclodextrins: Evidence for supramolecular structures in aqueous solutions

2016 ◽  
Vol 12 ◽  
pp. 549-563 ◽  
Author(s):  
Vito Rizzi ◽  
Sergio Matera ◽  
Paola Semeraro ◽  
Paola Fini ◽  
Pinalysa Cosma
Keyword(s):  
Inclusion Complexes ◽  
Pyrimidine Ring ◽  
Protective Role ◽  
Supramolecular Structures ◽  
Water Soluble ◽  
Aqueous Environment ◽  
Spectroscopic Techniques ◽  
Guest Molecules ◽  
H Nmr ◽  
Cv Measurements

Since several years the inclusion of organic compounds (guests) within the hydrophobic cavity (host) of cyclodextrins (CDs) has been the subject of many investigations. Interestingly, the formation of inclusion complexes could affect the properties of the guest molecules and, for example, the influence of the delivery system can be a method to improve/change the photochemical behavior of the guest. In particular, very recent studies have shown the protective role of CDs preventing the degradation of the encapsulated guest. Starting from this consideration, in this work, only the structure and complexation mode of the inclusion complexes involving 4-thiothymidine (S4TdR, a known photosensitizer) and five CDs, namely 2-hydroxypropyl-α-cyclodextrin (2-HP-α-CD), 2-hydroxypropyl-β-cyclodextrin (2-HP-β-CD), 2-hydroxypropyl-γ-cyclodextrin (2-HP-γ-CD), heptakis-(2,6-di-O-methyl)-β-cyclodextrin (DIMEB CD) and heptakis-(2,3,6-tri-O-methyl)-β-cyclodextrin (TRIMEB CD) were investigated by different spectroscopic techniques (UV–vis, FTIR–ATR, 1H NMR) and cyclic voltammetry analysis (CV). This work is necessary for a prospective research on the photoreactivity of S4TdR in aqueous environment and in the presence of CDs to prevent its degradation under irradiation. UV–vis, FTIR–ATR and CV measurements suggested the formation of supramolecular structures involving the employed CDs and mainly the pyrimidine ring of S4TdR. 1H NMR analyses confirmed such indication, unveiling the presence of inclusion complexes. The strongest and deepest interactions were suggested when TRIMEB and DIMEB CDs were studied. The S4TdR affinity towards CDs was also evaluated by using the Benesi–Hildebrand (B–H) equation at 25 °C employing CV and 1H NMR methods. The stoichiometry of the interaction was also inferred and it appears to be 1:1 for all examined CDs.

Highly Sensitive Detection and Rapid Removal of Picric Acid Using Fe2O3-CdSe Nanocomposite As Fluorescent Probe

2021 ◽  
Vol MA2021-01 (63) ◽  
pp. 1680-1680
Author(s):  
Anshu Kumar ◽  
Prathul Nath ◽  
Vishal Kumar ◽  
Soumitra Satapathi
Keyword(s):  
Fluorescent Probe ◽  
Picric Acid ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Rapid Removal ◽  
Highly Sensitive Detection

The synthesis of water-soluble phosphate pillar[5]arenes functionalized graphene as a fluorescent probe for sensitive detection of paraquat

Talanta ◽  
2019 ◽  
Vol 195 ◽  
pp. 472-479 ◽  
Author(s):  
Xiaoping Tan ◽  
Yue Wu ◽  
Sha Yu ◽  
Tingying Zhang ◽  
Hexiang Tian ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Water Soluble ◽  
Sensitive Detection ◽  
Soluble Phosphate ◽  
Functionalized Graphene
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