Kuhn could have illustrated his point with almost anything: for example, the science of plant leaves and their structure. The networks of veins in leaves share universal features that demand ...

They used laser etching to create intricate graphene trenches within liquid metal/low expansion polyimide (LM@PI) films, mimicking leaf veins. Polydimethylsiloxane (PDMS) was then used to ...

"The design mimics the structure of leaf veins," said LI Xiaofei, a member of the team, "which balances strength and speed of the actuator." The result was published in Advanced Materials.