Surfactant-induced alterations in optoelectronic properties of perylene diimide dyes: modulating sensing responses in the aqueous environment

Pal, Animesh; Dey, Nilanjan

doi:10.1039/d3sm01694c

Cited by 4 publications

(1 citation statement)

References 40 publications

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“…Considering these, herein we have synthesized one pyridine-end conjugated oligo- p -phenylenevinylene compound ( 1 ) that showed distinct optical response toward two different transition metal ions in THF medium. The scientific community’s interest in this kind of developing method to easily detect and collect varied chemical analytes has already been high. − The colorless solution of free probe changed to yellow and orange in the presence of Cu 2+ and Hg 2+ ions, respectively. In addition, the bright blue fluorescence of the native compound turned into yellow upon addition of the Hg 2+ ion, while Cu 2+ could induce a turn-off response.…”

Section: Introductionmentioning

confidence: 99%

Designing Unconventional Molecular Ternary INHIBIT Logic Gate and Crafting Multifunctional Molecular Logic Systems

Karar,

Barkale,

Vasishtha

et al. 2024

J. Phys. Chem. B

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The paper describes an improved method for building flexible interswitchable logic gates such as rare-type molecular ternary INHIBIT and combinational logic circuits using a specially designed pyridine-end oligo-p-phenylenevinylene compound featuring alkyl substituents (−C 16 H 33 ) in a THF medium. The probe molecule showed distinct opto-chemical signals upon interaction with Cu(II) and Hg(II) in THF medium. It is interesting to note that the presence of certain anions (S 2− , I − , and CN − ) could specifically mask the interaction of either of these metal ions or both. The most exciting thing is that we used a completely new gate design technique to construct a rare-type ternary INHIBIT logic gate using Cu(II), Hg(II), and CN − ions as three chemical inputs. With the identical set of chemical inputs, two more ternary combinational logic circuits were created out of these casespecific, independent reversible and irreversible spectroscopic studies. Finally, we were able to design adaptive molecular logic systems composed of several logic gates, including NOR, AND, IMPLICATION, INHIBIT, TRANSFER, and COMPLEMENT, that in this specific situation change the sort of logic sense by effortless optical toggling.

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Section: Introductionmentioning

confidence: 99%

Designing Unconventional Molecular Ternary INHIBIT Logic Gate and Crafting Multifunctional Molecular Logic Systems

Karar,

Barkale,

Vasishtha

et al. 2024

J. Phys. Chem. B

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Modulating Fluorescent Responses in Organic-Doped Polyethylenimine Composites: Impact on Pyrophosphate Detection and Biogenic Phosphate Analysis

Mondal,

Dey

2024

ACS Appl. Polym. Mater.

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Organic-doped fluorescent polyethylenimine composites have been prepared by incorporating three commercially available aldehydessalicylaldehyde (SA-PEI), 4-hydroxybenzaldehyde (PHB–PEI), and 2-hydroxynaphthaldehyde (NP-PEI)in PBS buffer solution (pH = 7.4). The polymers derived from salicylaldehyde and 4-hydroxybenzaldehyde exhibited opposite responses (turn-on with SA-PEI and turn-off with PHB–PEI) to pyrophosphate (PPi), whereas NP-PEI showed a negligible response. Mechanistic investigations indicated that the electrostatic interaction supplemented by hydrogen bonding is responsible for the phosphate-specific optical response. However, the mode of interaction and fluorescence response depended on the nature of the organic dopant to the PEI polymeric backbone. Mechanistic investigation suggested that the SA-PEI composite showed turn-on response due to the restricted intramolecular motion and enhancement of hydrophobicity surrounding the probe due to PPi addition, and PHB–PEI showed turn-off response due to higher hydrogen-bonding interaction leading to more nonradiative decay by charge transfer. Not only this but also the entanglement of polymer chains, leading to aggregated structures, depends on the degree of anionic charges on phosphate analytes. Further, a similar idea was extended for analysis of biogenic phosphates like Calf Thymus DNA (CT DNA) and adenosine triphosphate (ATP), which was relevant for clinical diagnosis.

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Selective sensing of cyanide ions: impact of molecular design and assembly on the response of π-conjugated acylhydrazone compounds

Barkale,

Dey

2024

RSC Adv.

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Surfactant-induced alterations in optoelectronic properties of perylene diimide dyes: modulating sensing responses in the aqueous environment

Abstract: The compartmentalization effect of microheterogeneous systems, like surfactant aggregates, showcases altered optoelectronic properties of a perylene diimide-based chromogenic dye (PDI-Ala) compared to bulk water. The relatively hydrophobic microenvironment, poor hydration,...

Cited by 4 publications

References 40 publications

Designing Unconventional Molecular Ternary INHIBIT Logic Gate and Crafting Multifunctional Molecular Logic Systems

Designing Unconventional Molecular Ternary INHIBIT Logic Gate and Crafting Multifunctional Molecular Logic Systems

Modulating Fluorescent Responses in Organic-Doped Polyethylenimine Composites: Impact on Pyrophosphate Detection and Biogenic Phosphate Analysis

Selective sensing of cyanide ions: impact of molecular design and assembly on the response of π-conjugated acylhydrazone compounds

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