Emerging graphene-based sensors for the detection of food adulterants and toxicants - A review.

Autor: Raghavan VS; Optics and Microfluidics Instrumentation Lab, Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India. Electronic address: vikrams@iisc.ac.in., O'Driscoll B; Wolfson Nanomaterials & Devices Laboratory, School of Engineering, Computing and Mathematics, Plymouth University, Devon PL4 8AA, UK., Bloor JM; Wolfson Nanomaterials & Devices Laboratory, School of Engineering, Computing and Mathematics, Plymouth University, Devon PL4 8AA, UK., Li B; Department of Brain Sciences, Imperial College, London W12 0NN, UK., Katare P; Optics and Microfluidics Instrumentation Lab, Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India., Sethi J; Wolfson Nanomaterials & Devices Laboratory, School of Engineering, Computing and Mathematics, Plymouth University, Devon PL4 8AA, UK., Gorthi SS; Optics and Microfluidics Instrumentation Lab, Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India., Jenkins D; Wolfson Nanomaterials & Devices Laboratory, School of Engineering, Computing and Mathematics, Plymouth University, Devon PL4 8AA, UK.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2021 Sep 01; Vol. 355, pp. 129547. Date of Electronic Publication: 2021 Mar 13.
DOI: 10.1016/j.foodchem.2021.129547
Abstrakt: The detection of food adulterants and toxicants can prevent a large variety of adverse health conditions for the global population. Through the process of rapid sensing enabled by deploying novel and robust sensors, the food industry can assist in the detection of adulterants and toxicants at trace levels. Sensor platforms which exploit graphene-based nanomaterials satisfy this requirement due to outstanding electrical, optical and thermal properties. The materials' facile conjugation with linkers and biomolecules along with the option for further enhancement using nanoparticles results in highly sensitive and selective sensing characteristics. This review highlights novel applications of graphene derivatives for detection covering three important approaches; optical, electrical (field-effect) and electrochemical sensing. Suitable graphene-based sensors for portable devices as point-of-need platforms are also presented. The future scope of these sensors is discussed to showcase how these emerging techniques will disrupt the food detection sector for years to come.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: