fig1
Figure 1. System diagram of flexible optical waveguides for human health assistance[45-56]. Copyright 2020, Elsevier; Copyright 2023, Wiley; Copyright 2020, Wiley; Copyright 2024, American Chemical Society; Copyright 2020, American Chemical Society; Copyright 2022, American Chemical Society; Copyright 2023, Opto-Electronic Journals Group; Copyright 2024, American Association for the Advancement of Science.