Surface modification is an effective method to endow the biomedical metals with bio-functions.

The bioactivity, osteoinductivity, and anti-microbial property can be realized by bio-functionalization on biomedical titanium.

The biomedical magnesium can not only be used in orthopedic field but can also be endowed with bio-function of anti-tumor property.

Biomedical metals can be modified to obtain the function of anticoagulation and even drug loading properties.