A2 Review article in a scientific journal

Biosensing based on upconversion nanoparticles for food quality and safety applications

List of Authors: Riikka Peltomaa, Elena Benito-Peña, Hans H Gorris, María C Moreno-Bondi

Publisher: Royal Society of Chemistry

Publication year: 2021

Journal: Analyst

Journal acronym: Analyst

Volume number: 146

Issue number: 1

eISSN: 1364-5528

DOI: http://dx.doi.org/10.1039/D0AN01883J

URL: https://pubs.rsc.org/en/content/articlelanding/2021/AN/D0AN01883J#!divAbstract


Food safety and quality regulations inevitably call for sensitive and accurate analytical methods to detect harmful contaminants in food and to ensure safe food for the consumer. Both novel and well-established biorecognition elements, together with different transduction schemes, enable the simple and rapid analysis of various food contaminants. Upconversion nanoparticles (UCNPs) are inorganic nanocrystals that convert near-infrared light into shorter wavelength emission. This unique photophysical feature, along with narrow emission bandwidths and large anti-Stokes shift, render UCNPs excellent optical labels for biosensing because they can be detected without optical background interferences from the sample matrix. In this review, we show how this exciting technique has evolved into biosensing platforms for food quality and safety monitoring and highlight recent applications in the field.

Last updated on 2021-04-11 at 13:50