Researchers at ETH Zurich, led by Xiao-Hua Qin and Ralph Müller, have developed a novel, dissolvable hydrogel that mimics the body's natural bone healing process, potentially revolutionizing personalized bone implants. This jelly-like material, composed of 97% water and 3% biocompatible polymer, can be precisely shaped using laser technology, creating intricate structures with resolutions as fine as 500 nanometers. The hydrogel is designed to gradually dissolve in the body, facilitating the colonization of bone-forming cells and the production of collagen, a key component of bone. Early in-vitro tests have shown promising biocompatibility and cell activity, with the team now preparing for animal trials to assess its efficacy in living organisms and its ability to restore bone strength over time.