Scalable and Degradable Dextrin-Based Elastomers for Wearable Touch Sensing

Elastomer-based wearables can improve people's lives; however, frictional wear caused by manipulation may pose significant concerns regarding their durability and sustainability. To address the aforementioned issue, a new class of advanced scalable supersoft elastic transparent material (ASSETm) is reported, which offers a unique combination of scalability (20 g scale), stretchability (up to 235%), and enzymatic degradability (up to 65% in 30 days). The key feature of our design is to render native dextrin hydrophobic, which turns it into a macroinitiator for bulk ring-opening polymerization. Based on ASSETm, a self-powered touch sensor (ASSETm-TS) for touch sensing and non-contact approaching detection, possessing excellent electrical potential (up to 65 V) and rapid response time (60 ms), is fabricated. This work is a step toward developing sustainable soft electronic systems, and ASSETm's tunability enables further improvement of electrical outputs, enhancing human-interactive applications.

Automated summary

Elastomer-based wearables can be improved by using a new class of advanced scalable supersoft elastic transparent material (ASSETm), which offers scalability, stretchability, and enzymatic degradability. A self-powered touch sensor (ASSETm-TS) based on ASSETm has been fabricated for touch sensing and non-contact approaching detection, with excellent electrical potential and rapid response time. This research contributes to the development of sustainable soft electronic systems and enhances human-interactive applications through the tunability of ASSETm's electrical outputs.