Squid-inspired soft material is a switchable shield for light, heat, microwaves

https://phys.org/news/2023-06-squid-inspired-soft-material-switchable-shield.html

"soft film regulate its transparency across large range wavelengths simultaneously.... 2 layer film spraying coating of silver nanowires onto stretched elastomer. Stretching and contracting produced cracks and bumpy wrinkles... contracted -30% strain, blocked light, trapped infrared heat and shielded >=99.9% microwaves... expansion related to increased optical transparency and heat and microwaves transmitted... transmit or block wireless electrocardiography signals, blanket to trap body heat or allow escape, tracking movements"

Related: Scientists develop self-healing elastomer for flexible electronics

https://phys.org/news/2023-09-scientists-self-healing-elastomer-flexible-electronics.html