Magnesium-based substrate having graded porosity at inner and outer parts double-coated with bioceramic and biodegradable polymer

摘要

A magnesium-containing substrate having a first porosity in order from the center; A magnesium-containing layer having a second porosity different from the first porosity; A crystalline bioceramics layer; And a biodegradable polymer layer, a method for producing the same, and uses thereof.