A battery-free, soft implantable nerve cuff system provides wireless delivery of light and drugs to modulate nerve activity.

Mechanically guided assembly techniques yield complex 3D microvascular networks with multifunctional characteristics.

This work reports a facile strategy to realize reversible shape-morphing and color-changing capabilities via spatially programmed liquid crystal elastomer structures incorporated with thermochromic dyes as well as thermo-magnetic dual responsiveness.