Antibacterial effects of silver incorporated zeolite coatings on 3D printed porous stainless steels

Publication date: March 2020Source: Materials Science and Engineering: C, Volume 108Author(s): Yunan Qing, Kaishen Li, Dongdong Li, Yanguo QinAbstractFunctionalization of porous metals with antibacterial coatings is hotly pursued in recent decade. Here we fabricated a highly porous stainless steel component by selective laser melting and then coated with silver incorporated zeolite by in situ hydrothermal crystallization method. The morphology of their surface was investigated by scanning electron microscopy. The inhibition of Escherichia coli and Staphylococcus aureus were identified by bacterial viability studies after 24 h of incubation. More importantly, the obtained coatings show better osteointegration by spreading bone marrow stromal cells (BMSCs) after cultured with different scaffold extract solutions for 1, 3, and 5 days. These results suggest that silver incorporated zeolite coatings on 3D printed porous stainless steels exhibit better antibacterial activity and biocompatibility, showing potential application in the field of medical implant materials.Graphical abstractSilver incorporated zeolite coatings on 3D printed porous stainless steel exhibits better antibacterial activity and biocompatibility.
Source: Materials Science and Engineering: C - Category: Materials Science Source Type: research