Rational design of an ultrabright quinolinium-fused rhodamine turn-on fluorescent probe for highly sensitive detection of SO2 derivatives: applications in food safety and bioimaging

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136291 - 136291

Published: Oct. 24, 2024

Language: Английский

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Background-Free and Reversible Upconversion Hydrogel Sensing Platform for Visual Monitoring of Sulfite

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(6), P. 2711 - 2718

Published: Feb. 1, 2024

Excessive sulfite usage in food and pharmaceutical production causes respiratory neurological diseases, underscoring the need for a sensitive rapid quantification strategy. The portable sensing platform based on luminescent hydrogel sensor is powerful tool on-site, real-time detection of ions. However, lack recyclability almost all reaction-based sensors increases application cost. This study constructed reversible upconversion nanoprobe combining nanoparticles (UCNPs) pararosaniline (PAR) detection. was further encapsulated three-dimensional polyacrylamide matrix to create background-free, sensor. near-infrared excitation UCNPs avoids autofluorescence real samples. Meanwhile, PAR serves as specific recognition unit After addition sulfites, reaction occurs between leading recovery characteristic emission at 540 nm, achieving Importantly, this under thermal treatment, allowing return its initial state thus enabling Furthermore, developed realize point-of-care, quantitative proposed provides new strategy hazardous substances offers insights into preparation reversible, highly sensors.

Language: Английский

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Coumarin-based fluorescent probes for the detection of ions, biomolecules and biochemical species responsible for diseases

Dyes and Pigments, Journal Year: 2024, Volume and Issue: 228, P. 112257 - 112257

Published: June 4, 2024

Language: Английский

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A ratiometric fluorescence probe for bisulfite detection in live cells and meat samples

Methods, Journal Year: 2024, Volume and Issue: 225, P. 100 - 105

Published: March 31, 2024

The development of reliable probe technology for the detection bisulfite (HSO3-) in situ food and biological samples is contributing significantly to quality safety assurance as well community health. In this work, a responsive probe, EHDI, developed ratiometric fluorescence HSO3- aqueous solution, meat samples, living cells. designed based on triggered 1,4-addition electron deficit C = bond EHDI. As result specific 1,4-addition, π-conjugation system was destructed, resulting blue shifts emission from 687 440 nm absorption 577 355 nm. has good water solubility, high sensitivity selectivity, allowing it be used imaging internalization production endogenously. capability EHDI then validated by traditional HPLC technology, enabling accurately detect beef samples. successful thus offers new tool investigating conditions.

Language: Английский

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Near-infrared and multifunctional fluorescent probe enabled by cyanopyridine cyanine dye for bisulfite recognition and biological imaging

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 477, P. 135369 - 135369

Published: July 29, 2024

Language: Английский

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A tetraphenylethylene fused hemicyanine fluorescent probe for detection of sulfur dioxide (SO2) derivatives and its practical applications

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 112865 - 112865

Published: Jan. 1, 2025

Language: Английский

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Nanozyme sensor array based on Fe, Se co-doped carbon material for the discrimination of Sulfur-containing compounds

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 470, P. 134127 - 134127

Published: March 26, 2024

Language: Английский

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A “turn-on” fluorescence probe based on a novel hypochlorous acid-induced cyclization response mechanism, and its applications in real water samples and bioimaging in vitro and in vivo

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1318, P. 139361 - 139361

Published: July 22, 2024

Language: Английский

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SO2 derivatives impair ovarian function by inhibiting Serpine1/NF-κB pathway-mediated ovarian granulosa cell survival

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137116 - 137116

Published: Jan. 5, 2025

Language: Английский

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Construction of Guanidinium-Functionalized Covalent Organic Frameworks via Phototriggered Click Reaction as a Dual-Mode Accurate Sensor for Malondialdehyde

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Malondialdehyde (MDA) serves as a pivotal indicator to estimate the lipid peroxidation status and biomarker for assessment of oxidative stress screening disease by people excretion. However, most existing analytical methods MDA suffer from complicated derivation, leading poor accuracy inconvenience. In this work, guanidinium-functionalized covalent organic framework (COF) was delicacy-designed used tune modular structure building blocks with condensation, phototriggered click reaction, further guanidylation process. A methoxy-group-containing linker in skeleton adopted form lone-pair delocalized oxygen atoms, trigger resonance effect, attenuate polarization C═N bond linkages, weaken interlayer repulsion, supporting stability guest gating COF. The available guanidino groups grew ordered pore walls COF served customized talon an enhanced interaction site density rapidly grab target charge-assisted strong hydrogen bonds electrostatic attraction forces. This distinctive feature significantly bolstered sensitive signal transduction, enabling rapid sensing (within 120 s) without derivation treatment, achieved calculated limit detection (LOD) low 0.08 μM. With accessible image-data transmission process, portable dual-channel platform accurate monitoring.

Language: Английский

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