Chitosan-ImH@γ-CD: a pH-sensitive smart bio-coating to enhance the corrosion resistance of magnesium alloys in bio-implants.

Magnesium alloys hold promise as bio-implants but are hindered by poor corrosion resistance. To overcome this, a pH-sensitive smart anti-corrosion bio-coating was developed using a layer-by-layer technique. The first layer consists of Imidazol@waterproofed γ-Cyclodextrin metal organic framework (ImH@waterproofed γ-CD MOF), which encapsulates ImH, a green inhibitor, in waterproofed γ-CD MOF.