ArticleMikrochimica acta2019
A composite prepared from carboxymethyl chitosan and aptamer-modified gold nanoparticles for the colorimetric determination of Salmonella typhimurium.
Article in Mikrochimica acta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Advanced biosensing strategies for high-risk foodborne pathogens: a comprehensive review ofFood chemistry. Molecular sciences · 2026Review
- Metal and metal oxide nanoparticle-assisted molecular assays for the detection of Salmonella.Discover nano · 2025Review
- Biosensors for Monitoring, Detecting, and Tracking Dissemination of Poultry-Borne Bacterial Pathogens Along the Poultry Value Chain: A Review.Animals : an open access journal from MDPI · 2024Review
- Advances in aptamer-based biosensors for monitoring foodborne pathogens.Journal of food science and technology · 2024Review
- On-site colorimetric detection of Salmonella typhimurium.NPJ science of food · 2022Article
- Colorimetric detection of Salmonella typhimurium based on hexadecyl trimethyl ammonium bromide-induced supramolecular assembly of β-cyclodextrin-capped gold nanoparticles.Analytical and bioanalytical chemistry · 2022Article
- Gold nanoparticle-based optical nanosensors for food and health safety monitoring: recent advances and future perspectives.RSC advances · 2022Review
- Overview of Rapid Detection Methods forFoods (Basel, Switzerland) · 2021Review
- Recent Advances in Aptamer Sensors.Sensors (Basel, Switzerland) · 2021Review
- Paper chip-based colorimetric assay for detection of Salmonella typhimurium by combining aptamer-modified FeMikrochimica acta · 2020Article
- SiC-functionalized fluorescent aptasensor for determination of Proteus mirabilis.Mikrochimica acta · 2020Article
- Biodegradation of microcystin-RR and nutrient pollutants using Sphingopyxis sp. YF1 immobilized activated carbon fibers-sodium alginate.Environmental science and pollution research international · 2020Article
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Authors and funding
9 authors.
Funding
Abstract
An aptamer-based assay is described for the determination of Salmonella typhimurium (S. typh). Carboxymethyl chitosan was loaded with amino-modified aptamer against S. typh, and then adsorbed on gold nanoparticles by electrostatic interaction to form a composite that acts as the molecular recognition element. In the presence of S. typh, it will be bound by the aptamer, and this changes the structure of the recognition element. On addition of salt solution, the gold nanoparticles agglomerate so that the color of the solution changes from red to blue. S. typh can be detected via measurement of the absorbance at 550 nm. Absorbance increases linearly with the logarithm of the S. typh concentration in the range from 100 to 10
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