Monitoring of Sweat pH and Dual‐Mode Anti‐Counterfeiting from Metal‐Organic Framework‐Based Multifunctional Gel

Abstract

Comprehensive SummaryMonitoring of sweat pH play important roles in physiological health, nutritional balance, psychological stress, and sports performance. The combination of functional MOFs with phosphorescent material to acquire the real‐time physiological information, as well as the application of dual mode anti‐counterfeiting, have seldom been reported. Herein, we reported MOF and phosphorescent dyes based multifunctional gel films with H+ response and the related mechanism was studied in detail. Upon induction of H+, the composite gel film exhibited decreased fluorescent signal but enhanced room temperature phosphorescence (RTP), which could be utilized for sweat pH sensing through a dual‐mode. Moreover, multifunctional gel films exhibited a potential application in information encryption and anti‐counterfeiting by designing of stimulus responsive multiple patterns. This research opens a new avenue for portable and non‐invasive sweat pH monitoring method, provides opportunities for effective anti‐counterfeiting, also offers new insights stimulus‐responsive multifunctional materials and their potential applications.This article is protected by copyright. All rights reserved.