Gas Sensing With Polymeric Materials: Improved Sensitivity and Selectivity for Acetaldehyde and Formaldehyde

Polymers for Advanced Technologies, Journal Year: 2025, Volume and Issue: 36(4)

Published: March 28, 2025

ABSTRACT Selective detection of volatile organic compounds (VOCs) remains a critical challenge in environmental monitoring and industrial safety. This study investigates the sensitivity selectivity four pristine polymeric backbones—polyaniline (PANI), polypyrrole (PPy), polyvinylpyrrolidone (PVP), polythiophene (PTh)—for acetaldehyde (Ac) formaldehyde (F). Among these, PANI demonstrated significant to both gases, making it promising candidate for detecting F. Conversely, PPy PVP exhibited pronounced Ac, them suitable applications requiring selective Ac sensing. PTh, with negligible sorption analytes, can serve as material indicate sensor baseline. Modifications backbone, including poly(o‐anisidine) (POANI), poly(N‐methyl aniline) (PNMA), poly(2,5‐dimethyl (P25DMA), were also evaluated. While these derivatives improved sensitivity, they reduced F due altered electrostatic interactions. P25DMA displayed relatively higher F, although still needs further refinements. Binary ternary gas mixture analyses conducted simulate real‐world scenarios multiple VOCs, revealing optimal materials detection, good Mechanistic insights that interactions polymer morphology significantly influence behavior. underscores potential tailored specific sensing reports notable achievements polymers structurally functionally diverse analytes.

Language: Английский

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Bioprospecting of Fungi for Therapeutic Enzymes

Published: Jan. 1, 2025

Language: Английский

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How to Keep Lactose Avoiders Healthy

Dairy, Journal Year: 2024, Volume and Issue: 5(4), P. 702 - 726

Published: Nov. 6, 2024

A large portion of the world’s population has lactose intolerance. Fundamentally, this condition occurs when small intestine does not produce enough lactase enzyme, which digests disaccharide in milk. Lactose avoiders might unconsciously decide to limit or exclude milk and dairy products from their diets. This group includes people with intolerance, an allergy protein, vegans, those expressing personal preferences. are often self-reported as being intolerant. In review, specific amounts different types presented. The micro- macronutrients them compared daily requirements established by accepted sources. Foods suggested that can play vital roles permanently avoiding lactose-containing products, for example, brussels sprouts, a good source vitamin B1; kale, K; cereals at breakfast B6. Attention is paid mature cheeses they extremely beneficial health due rich elemental compositions, also suitable intolerance low content. information rarely provided on packaging. addition, current state labeling presence food pharmaceutical discussed. term “hidden lactose” introduced include added unexpected foods, drinks, even medicines.

Language: Английский

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IMMOBILIZATION OF Β-GALACTOSIDASE OF Kluyveromyces lactis IN MESOPOROUS SILICA

Food and Bioproducts Processing, Journal Year: 2024, Volume and Issue: 149, P. 165 - 175

Published: Nov. 15, 2024

Language: Английский

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