| Info. | Vol.15 - No.2 (2021.06.20) |
|---|---|
| Title | Using Nanomaterials in Colorimetric Toxin Detection |
| Authors | Quynh Huong Nguyen, Moon Il Kim |
| Institutions | Department of BioNano Technology, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam, Gyeonggi 13120, Republic of Korea |
| Abstract | Exposure to toxins through contaminated food is a serious concern. For the detection of toxins in complex matrices, there are many analytical instrumentation-based methods; however, these approaches are generally expensive, laborious to perform, and require skilled technicians. Thus, they can only be utilized in centralized laboratories. To efficiently prevent the contamination by toxins and improve food safety, the use of on-site toxin detection methods enabling simple, rapid, sensitive, specific, reliable, and affordable identification of toxins is required. A colorimetric toxin detection strategy providing a naked-eye readout platform suits these requirements. Notably, the implementation of nanomaterials in the colorimetric strategy has proven to rapidly generate a higher capacity for detectable color responses owing to their unique physicochemical and catalytic properties. In this review, recent research on colorimetric toxin detection utilizing diverse nanostructures including noble metal nanoparticles and enzyme-like catalytic nanomaterials (nanozymes) is reviewed and discussed. Current challenges and future prospects for the utilization of nanomaterials in colorimetric toxin detection are also discussed. |
| Keyword | Colorimetric biosensors · Toxin detection · Point-of-care testing · Noble metal nanoparticle · Nanozyme |
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