LINKÖPING UNIVERSITY IMAGE: THE BLACK MATERIAL IS AN ELECTROACTIVE POLYMER, THE VOLUME OF WHICH CHANGES WHEN THE RESEARCHERS APPLY A LOW VOLTAGE, WHICH MAKES THIS SIMPLE “MICROROBOT” BEND. ON THE OTHER SIDE OF THE MATERIAL, YOU CAN SEE THE GEL TO WHICH THE RESEARCHERS HAVE ATTACHED BIOMOLECULES THAT ALLOW THE SOFT GEL MATERIAL TO HARDEN...
