Bioinspired Composite Materials with Amplified Clusteroluminescence: Chemodosimetric Interaction Targeting Hypochlorite in Aqueous Medium DOI Creative Commons
Rikitha S. Fernandes, Nilanjan Dey

ACS Materials Au, Journal Year: 2024, Volume and Issue: 5(2), P. 308 - 319

Published: Dec. 13, 2024

Owing to the advantages of cellulose such as exceptional biocompatibility and biodegradability, we synthesized cellulose-grafted bisindolyl methane (BIM) (1. Cell) composite. This biobased smart material was used an effective colorimetric fluorescent sensor for hypochlorite in aqueous medium with a detection limit 0.02 μM. Interestingly, exhibited inherent clusteroluminescence solution, which further intensified by probe acting dopant. Both boronic acid bisindole groups 1 are essential this enhanced fluorescence, enables boronate ester formation cellulose, while facilitate additional hydrogen bonding interactions. unique dual functionality produces strong, solution-phase clusteroluminescent effect, creating rigid microenvironment that promotes long-range exciton migration amplified fluorescence response. Furthermore, 1. Cell ∼2.8-fold quenching, alone negligible change presence hypochlorite. Mechanistic investigation reveals formed via interaction subsequently cleaved The differences response might be attributed distinct nature their self-assemblies; could form highly ordered aggregates, resulted spontaneous random aggregates. Additionally, employed paper strips explore practicability paper-based sensor. chemically modified strips, grafted molecules, were found stable week effectively detect interfering analytes naked eye color-changing

Language: Английский

Conformational Stability of α-Lactalbumin and Lysozyme in Ammonium-Based Ionic Liquids: A Comprehensive Insight into Structure–Activity Relationship DOI
S. K. Patra,

Poonam Singh,

Dharmendra Singh

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

Citations

0
Unravelling Optical Properties and Self-Assembly Behavior of Ciprofloxacin in Ionic Liquid Environments: Probing the Role of Cationic Residues and Counter Anions DOI
S. K. Patra, Nilanjan Dey

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This study investigated the interaction of ciprofloxacin (CIP) with three different ionic liquids (ILs) featuring distinct cationic residues (pyrrolidinium, IL1, vs. imidazolium, IL2, bis(trifluoromethylsulfonyl)imide as counter anion) and anions bis(trifluoromethylsulfonyl)imide, hexafluorophosphate, IL3, imidazolium residue) in an aqueous environment. A series spectroscopic studies have been performed to elucidate role ILs optical properties well aggregation behavior CIP. The fluorescence quenching experiment indicated that IL a pyrrolidinium residue showed stronger binding CIP, while was preferred anion. These effects might be attributed complex formation mediated by charge-pair cation-π interactions, along hydrogen bonding. Stern-Volmer analysis confirmed static mechanism, constants (Kb) reflecting affinity IL1 due hydrophobic butyl group flexible cation, resulting larger aggregates. In contrast, IL2 facilitated π-π hydrogen-bond disrupting CIP smaller clusters. polarizable nature its bond-accepting ability enabled containing this anion compared hexafluorophosphate-containing ILs. Further pH 6 is optimum for CIP-IL where remained zwitterionic form. Increased temperature strength diminished efficiency, consistent reduced stability complexes under such conditions.

Language: Английский

Citations

0
A sensitive colorimetric and “OFF-ON” fluorescent sensor for cyanide ions based on ESIPT-AIE mechanism from a fluorene-hydroxybenzaldehyde Schiff base DOI
Hossein Reza Darabi,

Amin Ghaemi,

Kioumars Aghapoor

et al.

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116295 - 116295

Published: Jan. 1, 2025

Language: Английский

Citations

0
The enhanced ultrafast dissociation of meso-hydrogen of bis(indolyl)methane derivatives under acidic conditions DOI Creative Commons
Vikas Kumar Jha, Sunil Kumar Patel, Devarapalli Chenna Rao

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(19), P. 14778 - 14786

Published: Jan. 1, 2025

The enhanced ultrafast dissociation of meso -H in BIM I under acidic condition. bar graph shows the ratio photoproduct and parent molecule at 500 fs time delay as a function subsequent TA scans.

Language: Английский

Citations

0
Improved Hg2+ detection with surfactant-assisted self-assembled bisindolyl methane derivatives: A smartphone-enabled digital image analysis DOI

M Gayathri,

Rikitha S. Fernandes,

Ram Raseele Awasthi

et al.

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: unknown, P. 126776 - 126776

Published: Dec. 1, 2024

Language: Английский

Citations

0
Bioinspired Composite Materials with Amplified Clusteroluminescence: Chemodosimetric Interaction Targeting Hypochlorite in Aqueous Medium DOI Creative Commons
Rikitha S. Fernandes, Nilanjan Dey

ACS Materials Au, Journal Year: 2024, Volume and Issue: 5(2), P. 308 - 319

Published: Dec. 13, 2024

Owing to the advantages of cellulose such as exceptional biocompatibility and biodegradability, we synthesized cellulose-grafted bisindolyl methane (BIM) (1. Cell) composite. This biobased smart material was used an effective colorimetric fluorescent sensor for hypochlorite in aqueous medium with a detection limit 0.02 μM. Interestingly, exhibited inherent clusteroluminescence solution, which further intensified by probe acting dopant. Both boronic acid bisindole groups 1 are essential this enhanced fluorescence, enables boronate ester formation cellulose, while facilitate additional hydrogen bonding interactions. unique dual functionality produces strong, solution-phase clusteroluminescent effect, creating rigid microenvironment that promotes long-range exciton migration amplified fluorescence response. Furthermore, 1. Cell ∼2.8-fold quenching, alone negligible change presence hypochlorite. Mechanistic investigation reveals formed via interaction subsequently cleaved The differences response might be attributed distinct nature their self-assemblies; could form highly ordered aggregates, resulted spontaneous random aggregates. Additionally, employed paper strips explore practicability paper-based sensor. chemically modified strips, grafted molecules, were found stable week effectively detect interfering analytes naked eye color-changing

Language: Английский

Citations

0