Articles with "colorimetric" as a keyword



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A novel label-free colorimetric polyA aptasensing approach based on cationic polymer and silver nanoparticles for detection of tobramycin in milk.

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Published in 2022 at "Food chemistry"

DOI: 10.1016/j.foodchem.2022.132580

Abstract: In this study, a novel colorimetric bioassay method was developed for the sensitive determination of tobramycin (TOB). To detect TOB, silver nanoparticles (AgNPs) were decorated with TOB-specific aptamers (apt), and positively charged poly diallyl dimethyl… read more here.

Keywords: colorimetric; novel label; detection; tob ... See more keywords
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A 4-phenyl thiophene appended 2,4-dinitrophenylhydrazone as a colorimetric chemosensor for selective detection of cyanide ion and its application for real-life samples

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Published in 2022 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2021.131494

Abstract: Abstract A Schiff's base probe PBD was synthesized by the treatment of 4-phenylthiophene-2-carbaldehyde and 2, 4-dinitrophenylhydrazine, which is found to act as a potential colorimetric sensor for CN− ion. The visual color change was noticed… read more here.

Keywords: phenyl thiophene; detection; thiophene appended; probe ... See more keywords
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Polyelectrolyte-functionalized reduced graphene oxide wrapped helical POMOF nanocomposites for bioenzyme-free colorimetric biosensing.

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Published in 2020 at "Talanta"

DOI: 10.1016/j.talanta.2020.121373

Abstract: For the sake of effective colorimetric sensing-pattern, a sensitive colorimetric sensor was conceived based on polyoxometalates based metal-organic frameworks (POMOFs) and polydiallyldimethylammonium chloride functionalized reduced graphene oxide (PDDA-rGO) for the first time, in which PDDA… read more here.

Keywords: graphene oxide; functionalized reduced; colorimetric; pdda ... See more keywords
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A coumarin–chalcone hybrid used as a selective and sensitive colorimetric and turn-on fluorometric sensor for Cd2+ detection

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Published in 2017 at "New Journal of Chemistry"

DOI: 10.1039/c7nj02569f

Abstract: A chalcone-based naked-eye colorimetric chemical sensor, (E)-4-hydroxy-3-(3-(4-methoxyphenyl)acryloyl)-2H-chromen-2-one 1a, was developed for selective and sensitive recognition of Cd2+ in mixed aqueous–organic media. The chemosensor demonstrates a distinct color change as well as a remarkable variation in… read more here.

Keywords: cd2; colorimetric; selective sensitive; coumarin chalcone ... See more keywords
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Quick and Easy Covalent Grafting of Sulfonated Dyes to CMC: From Synthesis to Colorimetric Sensing Applications

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Published in 2022 at "Polymers"

DOI: 10.3390/polym14194061

Abstract: Carboxymethyl cellulose, the most promising cellulose-derivatives, pulls together low cost, abundancy, biocompatibility, unique properties and, unlike the precursor, chemical reactivity. This latter aspect arouses the curiosity of chemists around the possibility of chemical modification and… read more here.

Keywords: grafting sulfonated; easy covalent; quick easy; covalent grafting ... See more keywords