A yellow to magenta multielectrochromic, pH sensor polymer based on 2,5-di(thienyl)pyrrole modified with methyl orange azo dye

Silva, Luis P.A.; Neto, José Dutra de Oliveira; Santos, Anna Paula L.A.; Silva, Ana Júlia C. da; Lima, Dimas José da Paz; Ribeiro, Adriana S.

doi:10.1016/j.synthmet.2022.117241

Cited by 5 publications

(2 citation statements)

References 51 publications

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“…Methyl orange is broadly utilized as a pH indicator with a pH transition range of 4.4–3.2 [ 99 ]. It is a redox-active dye that can be oxidized and polymerized at the electrodes surfaces for enhancing the sensitivity of the electrochemical sensors during the determination of biological and environmental analytes.…”

Section: Redox-active Dyes For Detecting Analytes In Biological and E...mentioning

confidence: 99%

Conducting dyes as electro-active monomers and polymers for detecting analytes in biological and environmental samples

Zahran

2023

Heliyon

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Section: Redox-active Dyes For Detecting Analytes In Biological and E...mentioning

confidence: 99%

Conducting dyes as electro-active monomers and polymers for detecting analytes in biological and environmental samples

Zahran

2023

Heliyon

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“…It goes as waste in the later industries which leads to water pollution . Hence, if the dye could be recovered and profitably used in the synthesis of fluorescent probes, photovoltaic devices and light emitting diodes, it can not only solve the problem of water pollution but also save the cost of designing multifunctional polymers. , BB dye has three phenylene rings, two azo bonds between first/second and second/third phenylene rings, and several free amino groups that can undergo polymerization, Figure . The dye molecule also has twist in its structure and has long conjugation across two azo bonds …”

Section: Introductionmentioning

confidence: 99%

Dye Modified Phenylenediamine Oligomers: Theoretical Studies on Drug Binding for Their Potential Application in Drug Sensors

Riaz,

Ashraf

2023

ACS Phys. Chem Au

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The present work reports, for the first time, synthesis of dye incorporated o-phenylenediamine (OBB) with a view to obtain a conjugated oligomer with enhanced functionality. The structure was confirmed by IR studies, while the electronic transitions were confirmed by UV visible studies. The dye modified oligomer showed one order higher fluorescence intensity than the pristine Bismarck Brown (BB) dye. Confocal imaging showed red emission which could be utilized in near infra-red imaging. Density functional theory (DFT) studies were carried out to predict the theoretical properties of the oligomers. The energies of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital orbital were computed to explore how the HOMO energies of the reactants initiated the electronic interactions between them. The interaction energies were correlated to conjugation/hyper conjugation stabilization energies of the natural bond orbitals (NBO) via the DFT method using the B3LYP functional with the 6-311G(d) basis set on Gaussian 09 software. Drug binding was evaluated through simulation of interaction energy, (ΔE A–x ) with drugs such as captopril, propranolol, thiazide, and fentanyl. The results predicted that the oligomer could be developed into a fentanyl drug sensor.

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Functional polymers for sensors and other applications

Azad,

Debnath,

Shovon

et al. 2024

Comprehensive Materials Processing

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A yellow to magenta multielectrochromic, pH sensor polymer based on 2,5-di(thienyl)pyrrole modified with methyl orange azo dye

Cited by 5 publications

References 51 publications

Conducting dyes as electro-active monomers and polymers for detecting analytes in biological and environmental samples

Conducting dyes as electro-active monomers and polymers for detecting analytes in biological and environmental samples

Dye Modified Phenylenediamine Oligomers: Theoretical Studies on Drug Binding for Their Potential Application in Drug Sensors

Functional polymers for sensors and other applications

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