Fig. 6: Examples of sweat sensors for heavy metal detection.
From: Wearable and flexible electrochemical sensors for sweat analysis: a review

a Schematic of a wearable sweat sensor for real-time detection of trace amounts of metallic zinc in sweat67. Copyright 2015, Elsevier. b and c Schematic of a wearable sensor for multiplexed heavy metal monitoring of sweat66. Copyright 2016, ACS. d and e A wearable and fully printed microfluidic nanosensor for copper detection in sweat68. Copyright 2022, Elsevier