EurekAlert November 18, 2020 An international team of researchers (Hong Kong, China) has constructed millirobots by coating inanimate objects with a composited agglutinate magnetic spray. The technique enables a variety of 1D, 2D, or 3D objects to be covered with a thin magnetically drivable film (~100 to 250 micrometers in thickness). The film is thin enough to preserve the original size, morphology, and structure of the objects while providing actuation of up to hundreds of times its own weight. Under the actuation of a magnetic field, the millirobots are able to demonstrate a range of locomotive abilities: crawling, walking, and […]