Researchers at the City University of Hong Kong have developed a magnetic spray called "M-spray" that transforms ordinary objects into controllable devices. By applying this spray, objects can interact with magnetic fields, enabling movements like crawling, walking, or rolling. The coating is thin, flexible, and removable, making it suitable for various applications, including biomedical uses like targeted drug delivery. For more content like this, please visit: https://t.co/1glyJr6Zj9 #MagneticSpray# #SmartMaterials# #CityUResearch# #InnovativeTechnology#