Peptide-Based Fluorescent Probe for Simultaneous Recognition of Ag (I) and Cu(Ii) Ions and its Applications

Published: Jan. 1, 2025

Achieving highly selective detection of silver (Ag+) and copper (Cu2+) ions is important because their large emissions can cause many diseases. Herein, a new fluorescent probe DGCA (Dansyl-Gly-Cys-Ala-NH2) based on dansyl group modified tripeptide molecule was successfully synthesized. acts as promising for simultaneous Ag+ Cu2+ with Stokes shift (230 nm), which displayed fluorescence enhancement by quenching in 100% aqueous solution. In addition, predominantly exhibited high sensitivity recognition Cu2+, the limit detections were 7.4 nM 5.9 nM, respectively. Furthermore, stoichiometry between Ag+/Cu2+ 1:1 means fluorometric titration, Job's plot, resolution mass spectrometry theoretical calculation. The changes upon addition applied an ultrasensitive logic gate at molecular level. Due to low toxicity good permeability, used bioimaging living cells zebrafish larvae differential response. Moreover, it also demonstrated that suitable three water samples. More importantly, smartphone RGB Color Picker employed analyze concentration satisfactory results.

Language: Английский

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Exploring the recognition behavior of a fluorescein-based probe towards the significant detection of Cu2+ and Zn2+ ions: Experimental and computational studies

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116268 - 116268

Published: Jan. 1, 2025

Language: Английский

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A highly sensitive and colorimetric fluorescent sensor for visualizing Zn2+ in aqueous solution

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2025, Volume and Issue: unknown, P. 125793 - 125793

Published: Jan. 1, 2025

Language: Английский

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Novel Benzothiazole Boc-Phe-Phe-Bz Derivative Dipeptide Forming Fluorescent and Nonlinear Optical Self-Assembled Structures

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 942 - 942

Published: Feb. 18, 2025

This work explores the self-assembly and optical properties of a novel chiral, aromatic-rich Boc-Phe-Phe dipeptide derivative functionalized with benzothiazole bicyclic ring that forms supramolecular structures. Leveraging well-known self-assembling capabilities diphenylalanine dipeptides, this modified introduces heterocyclic unit significantly enhances fluorescence resulting nanostructures. The derivative's rich aromatic character drives formation structures through self-organization mechanisms influenced by quantum confinement. By adjusting solvent system, nanostructures exhibit tunable morphologies, ranging from nanospheres to nanobelts. nonlinear these self-assembled were studied an estimated deff ~0.9 pm/V was obtained, which is comparable reported for highly triphenylalanine peptide.

Language: Английский

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Dual-response fluorescent triphenylamine chemoprobe HN2 for the detection of Cu2+ ions and H2S: Applications in real samples and biological imaging

Food Chemistry, Journal Year: 2025, Volume and Issue: 480, P. 143846 - 143846

Published: March 14, 2025

Language: Английский

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ZnO-co-CeO2 decorated chitosan fiber oxidase mimic identified for visual monitoring of NO2−, S2− and Fe2+ in food

Journal of Food Composition and Analysis, Journal Year: 2025, Volume and Issue: unknown, P. 107512 - 107512

Published: March 1, 2025

Language: Английский

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Rational Design of a Peptide-Based Fluorescent Probe for Selective Recognition of Ag+ and Cu2+ Ions and its Multifunctional Applications

Published: Jan. 1, 2025

Language: Английский

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Rational Design of a Peptide-Based Fluorescent Probe for Selective Recognition Of Ag + And Cu 2+ Ions and its Multifunctional Applications

Published: Jan. 1, 2025

Language: Английский

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Naturally Occurring Flavonol, Quercetagetin 5,6,7,3′,4′-Pentamethyl Ether (Marionol), as a Nontoxic Plant-Based Fluorescent Probe for Rapid, Sensitive, and Selective Detection of Cu²⁺ in Water

ACS Omega, Journal Year: 2024, Volume and Issue: 9(47), P. 47342 - 47349

Published: Nov. 12, 2024

Herein, we report a naturally occurring flavonol, quercetagetin 5,6,7,3′,4′-pentamethyl ether (known as marionol), nontoxic fluorescent probe for rapid, sensitive, and selective detection of Cu2+ in water. The interaction between marionol ions is studied by various state-of-the-art spectroscopic techniques such 1H NMR, UV–vis, fluorescence, high-resolution mass spectrometry (HRMS). Marionol shows strong fluorescence quenching the presence Cu2+, whereas other interfering cations Fe3+, Co2+, Al3+, Pb2+, Hg2+, Zn2+, Mg2+, Mn2+, Ca2+, Cu+, Ag+, Na+, K+ produce negligible changes fluorescence. binding stoichiometry found to be 2:1, according Job's plot HRMS analyses. constant (Ka) with calculated 2.89 × 109 M–2, limit 0.15 μM. In addition, further used quantification natural spring water samples. good recoveries (92–110% RSD <5%) its low toxicity MCF-7 human breast cancer cells make unique plant-based ions.

Language: Английский

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A Near-Infrared Multifunctional Fluorescent Bio-probe with Large Stokes Shift and High Quantum Yield for Effective Determination of Heavy Metal Lead and Pesticide Glyphosate In Vitro and Vivo

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: unknown, P. 137017 - 137017

Published: Dec. 1, 2024

Language: Английский

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