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. 2022 Jan 25;457:214402. doi: 10.1016/j.ccr.2021.214402

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© 2022 The Authors

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 3 — COVID-19 nanostructured biosensors. (a) Schematic representation of various bioselective layers developed to detect the most common biomarkers of SARS-CoV-2 using nanostructured sensing materials. Copyrights Springer 2020 [77]. (b) Plasmonic-based model for the optical detection of SARS-CoV-2 spike protein using gold nanorods. Copyrights Wiley 2020 [18]. (c) SERS responsive materials implementation into Personal Protective Equipment (PPE) to detect infectious agents (colorimetric sensor). Copyrights MDPI 2020 [60].