TY  - JOUR
AU  - Choudhary, Lokesh
AU  - Banerjee, Parama Chakraborty
AU  - Singh Raman, R.K.
AU  - Lobo, Derrek E.
AU  - Easton, Christopher D.
AU  - Majumder, Mainak
AU  - Witte, Frank
AU  - Löffler, Jörg F.
PY  - 2024
TI  - Graphene–calcium carbonate coating to improve the degradation resistance and mechanical integrity of a biodegradable implant
JO  - Journal of Magnesium and Alloys
SN  - 2213-9567
SP  - 394
EP  - 404
VL  - 12
IS  - 1
AB  - Biodegradable implants are critical for regenerative orthopaedic procedures, but they may suffer from too fast corrosion in human-body environment. This necessitates the synthesis of a suitable coating that may improve the corrosion resistance of these implants without compromising their mechanical integrity. In this study, an AZ91 magnesium alloy, as a representative for a biodegradable Mg implant material, was modified with a thin reduced graphene oxide (RGO)-calcium carbonate (CaCO3) composite coating. Detailed analytical and in-vitro electrochemical characterization reveals that this coating significantly improves the corrosion resistance and mechanical integrity, and thus has the potential to greatly extend the related application field.
UR  - https://doi.org/10.1016/j.jma.2023.12.012
DO  - 10.1016/j.jma.2023.12.012