ArticleMikrochimica acta2024
A smartphone-integrated aptasensor for pesticide detection using gold-decorated microparticles.
Article in Mikrochimica acta, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- Elucidating the Mechanism of Interactions Between Aminoglycosides and AuNPs: Why the Classical Colorimetric Assay May Falsely Report Aptamer Affinity.Biosensors · 2026Article
- SELEX-Based Aptamer Technologies for Toxin Analysis: Screening, Optimization, and Computational Assisted Design.Toxins · 2026Review
- [Polydimethylsiloxane microfluidic aptasensor： opening a new era of biomarker point-of-care testing].Se pu = Chinese journal of chromatography · 2026Review
- Microfluidic Sensors for Micropollutant Detection in Environmental Matrices: Recent Advances and Prospects.Biosensors · 2025Review
- Current Advances in Aptasensors for Pesticide Detection.Topics in current chemistry (Cham) · 2025Review
- Development of colloidal carbon-based immunoassay for the determination of thiamethoxam in medicinal and edible Lonicerae Japonicae Flos.Analytical and bioanalytical chemistry · 2025Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
The increasing incidence of environmental concerns related to excessive use of pesticides, such as imidacloprid and carbendazim, poses risks to pollinators, water bodies, and human health, prompting regulatory scrutiny and bans in developed countries. In this study, we propose a portable smartphone-based biosensor for rapid and label-free colorimetric detection by using the gold-decorated polystyrene microparticles (Ps-AuNP) functionalized with specific aptamers to imidacloprid and carbendazim on a microfluidic paper-based analytical device (μ-PAD). Four aptamers were selected for the detection of these pesticides and their sensitivity and selectivity performance was evaluated. The sensitivity results show a detection limit for imidacloprid of 3.12 ppm and 1.56 ppm for carbendazim. The aptamers also exhibited high selectivity performance against other pesticides, such as thiamethoxam, fenamiphos, isoproturon, and atrazine. However, the platform presented cross-selectivity when detecting imidacloprid, carbendazim, and linuron, which is discussed herein. Overall, we present a promising platform for simple, on-site, and rapid colorimetric screening of specific pesticides, while highlighting the challenges of aptasensors in achieving selectivity amidst diverse molecular structures.
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Registered trials
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