Flexible and Stretchable Gold Microstructures on Extra Soft Poly(dimethylsiloxane) Substrates

Stretchable gold microstructures are reliably transferred onto an extra-soft elastomeric substrate. Several major challenges, including failure-free transfer and reliable bonding with the substrate, are addressed. The simple and reproducible fabrication allows extensive study and optimization of the stretchability of meanders in terms of thickness, geometry, and substrate. The results provide new insights for designing stretchable electronics and novel routes for stretch-related, mechanobiological cell-interface applications.