Fig. 5: Wearable optoelectronic, electrochemical, and temperature sensors/biosensors.
From: Wearable sensors for telehealth based on emerging materials and nanoarchitectonics
a Graphene QD-based photodetector; (i, ii) digital image of a flexible, wearable, and transparent photodetector and (iii) schematic illustration for detecting artery blood flow and heart rate. Reprinted with permission56. Copyright 2019, The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. Distributed under a Creative Commons Attribution-NonCommercial License 4.0 (CC BY-NC) http://creativecommons.org/licenses/by-nc/4.0/. b Graphene-based bio-sensing system for wireless stress hormone monitoring (i) schematic illustration of a stress sensing system for monitoring cortisol levels from sweat and saliva, (ii, iii) conceptual representation of cortisol changes controlled by circadian rhythm and driven by physical and emotional stress, (iv) schematic illustration of stress monitoring and data wirelessly transmitted to a smartphone, and (v) stress monitoring in relation to temperature. Reprinted with permission21. Copyright 2020, Elsevier. c Prussian Blue@Ti3C2-based wearable biosensing patch for remote determination of sweat biomarkers such as lactate, pH level, and glucose. Reprinted with permission58. Copyright 2019, Wiley. d Wireless and battery-free circular biosensor patch for monitoring potassium ions in sweat and wirelessly transmitted to a smartphone. Reprinted with permission20. Copyright 2021, Elsevier. e Telehealth platform for the diagnosis of SARS-CoV-2 in human blood and saliva using a graphene-based electrochemical biosensor. Reprinted with permission59. Copyright 2020, Elsevier. f Wearable and wireless graphene heater for temperature tracking and thermal therapy on a vast region of skin. Reprinted with permission17. Copyright 2022, The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. Distributed under a Creative Commons Attribution-NonCommercial License 4.0 (CC BY-NC) http://creativecommons.org/licenses/by-nc/4.0/. g Wearable Ti3C2-based temperature tag wirelessly measure human wrist, forehead and chest temperature. Reprinted with permission60. Copyright 2022, Springer Nature.
