Page 43 - Read Online

Page 20 of 34 Ma et al. Soft Sci 2024;4:26 https://dx.doi.org/10.20517/ss.2024.20

Figure 10. LIG-based biochemical skin electronics with single sensing mode for intelligent healthcare. (A) Optical photograph of pH
sensor under longitudinal strain; (B) Outputs of a pH sensor responding to different transverse strains. Reproduced with permission [41] .
Copyright 2017, American Chemical Society; (C) An electrochemical dopamine sensor based on PEDOT-modified LIG; (D) Response of
electrochemical dopamine sensor to different concentrations of dopamine. Reproduced with permission [75] . Copyright 2018, Elsevier
B.V.; (E) Illustration of a packaged wearable non-enzymatic glucose sensor; (F) Experimental results of the glucose sensor, responding
to human sweats at different time points. Reproduced with permission [40] . Copyright 2021, Elsevier B.V.; (G) Schematic of wearable
FeNCs/LIG-based electrochemical patch for sweat metabolites monitoring; (H) Tyr concentrations evaluated by developed
electrochemical patch and LC-MS. Reproduced with permission [103] . Copyright 2024, Elsevier B.V.; (I) A soft electrochemical sensing
patch for cortisol detection; (J) Cortisol monitoring from three physically untrained volunteers (B1, B2, B3) and one trained volunteer
(B4) in a cycling exercise. Reproduced with permission [43] . Copyright 2020, Cell Press; (K) Schematic illustration exhibits the use of
NOx gas as a promising biomarker for representative human diseases; (L) Response of the gas sensor to human exhaled breath
samples from different subjects, including patients (with respiratory diseases) and healthy volunteers. Reproduced with permission [39] .
Copyright 2022, Springer Nature. LIG: Laser-induced-graphene; PEDOT: poly(3,4-ethylenedioxythiophene); FeNCs: iron nano-catalysts;
Tyr: tyrosine; LC-MS: liquid chromatography-mass spectrometry.

a uniaxial tensile strain of 30%. The human experiments showed that the developed gas sensors could