Academic Journal
Bio-inspired aptamers decorated gold nanoparticles enable visualized detection of malathion
| العنوان: | Bio-inspired aptamers decorated gold nanoparticles enable visualized detection of malathion |
|---|---|
| المؤلفون: | Peng Li, Haonan Zhan, Sijian Tao, Zhuohao Xie, Jiahao Huang |
| المصدر: | Frontiers in Bioengineering and Biotechnology, Vol 11 (2023) |
| بيانات النشر: | Frontiers Media S.A., 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Biotechnology |
| مصطلحات موضوعية: | bio-inspired recognition components, super-hydrophilic nanomaterial, biosensor, enzyme-free system, colorimetric assay, Biotechnology, TP248.13-248.65 |
| الوصف: | Biosensors always respond to the targets of interest in a specific manner, employing biological or bio-mimic recognition elements such as antibodies and aptamers. Inspired by target recognition in nature, an aptamer-mediated, gold nanoparticle-based sensing approach is developed in this work for effective determination of malathion. The sensing system consists of negatively charged aptamer probes, and polycationic proteins, protamine, as well as exceptional colorimetric nanoprobes, barely gold nanoparticles (AuNPs). Protamine molecules bound to aptamer probes hinder the aggregation of AuNPs, while no such inhibition is maintained when aptamer-specific malathion is introduced into the solution, thus leading to the solution colour change from red to blue observable by the naked eye. The assay is accomplished via a mix-and-measure step within 40 min with a detection limit as low as 1.48 μg/L (3σ/s rule). The assay method also exhibits high selectivity and good applicability for the quantification of malathion in tap water with recovery rates of 98.9%–109.4%. Additionally, the good detection accuracy is also confirmed by the high-performance liquid chromatography method. Therefore, the non-enzymatic, label- and device-free characteristics make it a robust tool for malathion assay in agricultural, environmental, and medical fields. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2296-4185 |
| Relation: | https://www.frontiersin.org/articles/10.3389/fbioe.2023.1165724/full; https://doaj.org/toc/2296-4185 |
| DOI: | 10.3389/fbioe.2023.1165724 |
| URL الوصول: | https://doaj.org/article/ccd8149da60a445fbc9f8605bdde81c5 |
| رقم الانضمام: | edsdoj.8149da60a445fbc9f8605bdde81c5 |
| قاعدة البيانات: | Directory of Open Access Journals |
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