RALEIGH, North Carolina, Oct. 18 (TNSjou) -- North Carolina State University issued the following news release: * * * How origami robots with magnetic muscles could make medicine delivery less invasive and more effective A new 3-D printing technique can create paper-thin "magnetic muscles," which can be applied to origami structures to make them move. By infusing rubber-like elastomers with materials called ferromagnetic particles, researchers at North Carolina State University 3-D printed a more PR