Articles with "colorimetric aptasensor" as a keyword



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Colorimetric Aptasensor for Detection of Malachite Green in Fish Sample Based on RNA and Gold Nanoparticles

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Published in 2018 at "Food Analytical Methods"

DOI: 10.1007/s12161-017-1144-3

Abstract: A facile colorimetric aptasensor based on unmodified gold nanoparticles (AuNPs) for rapid, highly sensitive and selective detection of malachite green (MG), one of triphenylmethane dyes and antibiotics, was successfully developed. Malachite green RNA aptamer having… read more here.

Keywords: detection; malachite green; gold nanoparticles; colorimetric aptasensor ... See more keywords
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Simple and rapid detection of bisphenol A using a gold nanoparticle-based colorimetric aptasensor.

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Published in 2019 at "Food chemistry"

DOI: 10.1016/j.foodchem.2019.02.079

Abstract: A colorimetric aptasensor was developed for the simple and rapid detection of bisphenol A (BPA). The aptasensor was designed to consist of colloidal gold nanoparticles (AuNPs) and a BPA-specific 24-bp aptamer. The AuNP-aptamer conjugates underwent… read more here.

Keywords: rapid detection; detection; bpa; aptasensor ... See more keywords
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A label-free colorimetric aptasensor based on controllable aggregation of AuNPs for the detection of multiplex antibiotics.

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Published in 2019 at "Food chemistry"

DOI: 10.1016/j.foodchem.2019.125377

Abstract: We devise a novel colorimetric aptasensor for multiplex antibiotics based on an ss-DNA fragment coordinately controlling gold nanoparticles (AuNPs) aggregation. The multifunctional aptamer (Apt) was elaborately designed to be adsorbed on AuNPs surfaces acting as… read more here.

Keywords: aptasensor; detection; multiplex antibiotics; colorimetric aptasensor ... See more keywords
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Colorimetric aptasensor for on-site detection of oxytetracycline antibiotic in milk.

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Published in 2021 at "Food chemistry"

DOI: 10.1016/j.foodchem.2021.129659

Abstract: Oxytetracycline (OTC), one of the largely used antibiotic in veterinary practice has been banned due to its potential side effects. Development of a field applicable and affordable kit to detect OTC will help to eliminate… read more here.

Keywords: milk; otc; colorimetric aptasensor; site detection ... See more keywords
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Colorimetric Aptasensor Based on Truncated Aptamer and Trivalent DNAzyme for Vibrio parahemolyticus Determination.

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Published in 2019 at "Journal of agricultural and food chemistry"

DOI: 10.1021/acs.jafc.8b06893

Abstract: In this work, after optimizing the original aptamer sequence by truncation and site-directed mutagenesis, a simple and sensitive colorimetric aptasensor was established for detecting the widespread food-borne pathogen Vibrio parahemolyticus ( V. parahemolyticus). The detection… read more here.

Keywords: aptasensor; parahemolyticus; vibrio parahemolyticus; colorimetric aptasensor ... See more keywords
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Novel colorimetric aptasensor based on MOF-derived materials and its applications for organophosphorus pesticides determination.

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Published in 2022 at "Journal of hazardous materials"

DOI: 10.2139/ssrn.4122864

Abstract: For the visual detection of four organophosphorus pesticides (OPs), a colorimetric aptasensor was developed based on aptamer-mediated bimetallic metal-organic frameworks (MOFs) nano-polymers. Fe-Co magnetic nanoparticles (MNPs) and Fe-N-C nanozymes were prepared based on pyrolytic reaction,… read more here.

Keywords: complementary chains; novel colorimetric; colorimetric aptasensor; aptasensor based ... See more keywords
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A novel smartphone-based colorimetric aptasensor for on-site detection of Escherichia coli O157:H7 in milk.

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Published in 2021 at "Journal of dairy science"

DOI: 10.3168/jds.2020-19905

Abstract: Effective testing tools for Escherichia coli O157:H7 can prevent outbreaks of foodborne illness. In this paper, a smartphone-based colorimetric aptasensor was developed using functionalized gold nanoparticles (GNP) and multi-walled carbon nanotubes (MWCNT) for monitoring E.… read more here.

Keywords: smartphone based; coli o157; based colorimetric; colorimetric aptasensor ... See more keywords