Molecularly anchoring TPE-PDMS micro-dots for rupture-free and high-fidelity deformation mapping

Abstract

We report a molecular grafting strategy to eliminate interfacial rupture in stretchable sensors. By synthesizing tetraphenylethylene-polydimethylsiloxane (TPE-PDMS) copolymers, the sensing dots achieve seamless integration and synchronized co-deformation with substrates via enhanced molecular compatibility. This robust interface ensures high-fidelity strain mapping and reliable fracture warning, maintaining performance over 1,000 cycles.