Directly Using Ti₃C₂T_x MXene for a Solid-Contact Potentiometric pH Sensor toward Wearable Sweat pH Monitoring.

ABSTRACT: The level of hydrogen ions in sweat is one of the most important physiological indexes for the health state of the human body. As a type of two-dimensional (2D) material, MXene has the advantages of superior electrical conductivity, a large surface area, and rich functional groups on the surface. Herein, we report a type of Ti₃C₂T_x-based potentiometric pH sensor for wearable sweat pH analysis. The Ti₃C₂T_x was prepared by two etching methods, including a mild LiF/HCl mixture and HF solution, which was directly used as the pH-sensitive materials. Both etched Ti₃C₂T_x showed a typical lamellar structure and exhibited enhanced potentiometric pH responses compared with a pristi

SUBMITTER: Liang R 

PROVIDER: S-EPMC10141058 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature