Surface modification of biomaterials with proteins means coating the surfaces of biomaterials (like metals, plastics, and ceramics) with proteins. Proteins are special molecules in our bodies that help with things like providing energy, making sure our muscles work, and helping with communication between cells. By coating a biomaterial with proteins, we can help it do a specific job in your body. For example, coating a biomaterial with proteins can help it become more compatible with the cells in your body, allow it to release medicine in a more controlled way, and make it last longer inside your body.