Self-Reporting Multiple Microscopic Stresses Through Tunable Microcapsule Arrays.

ABSTRACT: Self-reporting materials have emerged as a promising tool for real-time monitoring of stress and damage in structural materials. When critical stress is applied to these materials, an optical response is triggered - for example by dye release, or molecular cleavage. A key challenge is to extend these systems to respond to multiple different stress levels. To achieve this, a novel microcapsule-based assembly strategy is presented. Microfluidic synthesis is used to create microcapsules that release dye at a precise level of applied force. Subsequently, capillary assembly is used to combine microcapsules with different stress-responsiveness and different fluorescent dyes into chains, which are uniformly patterned into regular arrays, and embed these into the self-reporting materials. Through

SUBMITTER: Hu M 

PROVIDER: S-EPMC11758236 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature