Optical fibers sensors for detection of SARS-CoV-2 infection

In this chapter, the main techniques that use light to monitor and detect viruses and biomolecules will be presented, including Surface-Enhanced Raman Spectroscopy (SERS), Localized-Surface Plasmon Resonance (SPR), luminescence, and others. It will also be discussed the devices used to build biosensors and, in addition, the chemical modifications in waveguides to improve and innovate such technologies. Besides, it will also address how optical devices and materials are being explored in the detection and diagnosis of the new coronavirus, as some aspects related to the biological structure of SARS-CoV-2 and its detection. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023. All rights reserved.