Editing Biosensor (section)

===Food analysis===
There are several applications of biosensors in food analysis.<ref>{{cite journal |last1=Svigelj |first1=Rossella |last2=Zuliani |first2=Ivan |last3=Grazioli |first3=Cristian |last4=Dossi |first4=Nicolò |last5=Toniolo |first5=Rosanna |title=An Effective Label-Free Electrochemical Aptasensor Based on Gold Nanoparticles for Gluten Detection |journal=Nanomaterials |date=17 March 2022 |volume=12 |issue=6 |pages=987 |doi=10.3390/nano12060987|pmid=35335800 |pmc=8953296 |doi-access=free }}</ref><ref>{{cite journal |last1=Svigelj |first1=Rossella |last2=Dossi |first2=Nicolo |last3=Pizzolato |first3=Stefania |last4=Toniolo |first4=Rosanna |last5=Miranda-Castro |first5=Rebeca |last6=de-los-Santos-Álvarez |first6=Noemí |last7=Lobo-Castañón |first7=María Jesús |title=Truncated aptamers as selective receptors in a gluten sensor supporting direct measurement in a deep eutectic solvent |journal=Biosensors and Bioelectronics |date=1 October 2020 |volume=165 |pages=112339 |doi=10.1016/j.bios.2020.112339 |pmid=32729482 |hdl=10651/57640 |s2cid=219902328 |url=https://www.sciencedirect.com/science/article/pii/S0956566320303341 |language=en |issn=0956-5663|hdl-access=free }}</ref><ref>{{cite journal |last1=Svigelj |first1=Rossella |last2=Dossi |first2=Nicolò |last3=Grazioli |first3=Cristian |last4=Toniolo |first4=Rosanna |title=Paper-based aptamer-antibody biosensor for gluten detection in a deep eutectic solvent (DES) |journal=Analytical and Bioanalytical Chemistry |date=6 October 2021 |volume=414 |issue=11 |pages=3341–3348 |doi=10.1007/s00216-021-03653-5 |pmid=34617152 |pmc=8494473 |language=en |issn=1618-2650}}</ref><ref>{{Cite journal |last1=Bolognesi |first1=Margherita |last2=Prosa |first2=Mario |last3=Toerker |first3=Michael |last4=Lopez Sanchez |first4=Laura |last5=Wieczorek |first5=Martin |last6=Giacomelli |first6=Caterina |last7=Benvenuti |first7=Emilia |last8=Pellacani |first8=Paola |last9=Elferink |first9=Alexander |last10=Morschhauser |first10=Andreas |last11=Sola |first11=Laura |last12=Damin |first12=Francesco |last13=Chiari |first13=Marcella |last14=Whatton |first14=Mark |last15=Haenni |first15=Etienne |date=June 2023 |title=A Fully Integrated Miniaturized Optical Biosensor for Fast and Multiplexing Plasmonic Detection of High- and Low-Molecular-Weight Analytes |journal=Advanced Materials |language=en |volume=35 |issue=26 |pages=e2208719 |doi=10.1002/adma.202208719 |pmid=36932736 |bibcode=2023AdM....3508719B |s2cid=257603757 |issn=0935-9648|doi-access=free }}</ref> In the food industry, optics coated with antibodies are commonly used to detect pathogens and food toxins. Commonly, the light system in these biosensors is fluorescence, since this type of optical measurement can greatly amplify the signal.

A range of immuno- and ligand-binding assays for the detection and measurement of small molecules such as [[water-soluble vitamins]] and chemical contaminants ([[drug residues]]) such as [[Sulfonamide (medicine)|sulfonamides]] and [[Beta-agonists]] have been developed for use on [[Surface plasmon resonance|SPR]] based sensor systems, often adapted from existing [[ELISA]] or other immunological assay. These are in widespread use across the food industry.