High-performance sensing, breathable, and biodegradable integrated wearable sweat biosensors for a wireless glucose early warning system

Abstract

A biosensor for glucose early-warning system application is developed using patterned Janus fabrics and non-enzymatic compositions with strong catalytic activity.

Microfluidic Sensing Textile for Continuous Monitoring of Sweat Glucose at Rest

“…The electrochemical behavior of the microfluidic sensing textile was first evaluated by cyclic voltammetry (CV) using a three-electrode system as a research model. An improvement in sensitivity compared to our previous work due to an increased Cu + content arising from the modified deposition time . The Cu + content increased from 33.3 to 75.53% as the deposition time increased from 1 to 48 h (Figure S12).…”

“…An improvement in sensitivity compared to our previous work due to an increased Cu + content arising from the modified deposition time. 66 The Cu + content increased from 33.3 to 75.53% as the deposition time increased from 1 to 48 h (Figure S12). The mechanism for detecting glucose in sweat relies on the current generated by an electrochemical redox reaction between Cu 2 O and glucose.…”

Permeable Bioelectronics toward Biointegrated Systems

“…Recently, Zhao et al developed a breathable and biodegradable glucose-sensing system for sweat (Figure 12B). 326 The system consists of two types of electrospun polycaprolactone (PCL) nanofibers with different pore sizes and hydrophilicities. The diameter and pore size of hydrophobic (water contact angle of 142.5°) PCL nanofibers are 3.…”

“…The skin continuously generates sweat and other biofluids containing various biomarkers, such as glucose, lactate, pH, and ions, and skin-attachable chemical sensors have been intensively developed to monitor various body conditions in a noninvasive manner. − The permeable chemical sensor enables long-term monitoring of such biological fluidics while enabling natural emission of biofluids through the devices over the skin. Liu et al fabricated porous and permeable ascorbic acid (AA) and pH sensors using carbon micromesh electrodes .…”

Smart Janus textiles for biofluid management in wearable applications

“…By analyzing sweat composition, this technology translates chemical data into electrical signals for precise analysis. 63 , 64 Traditional fabrics used in sweat sensing faced challenges in sweat management and comfort. Recent developments aim to create an optimal skin microenvironment, which is crucial for user comfort and accurate physiological monitoring.…”