Magnesium (Mg) and magnesium-based alloys have favorable properties as biomedical materials due to their biocompatibility, mechanical properties and resorption in the body. However, Mg by itself suffers from a high corrosion rate, traditionally managed by alloying it with other elements, which may be toxic.
Recently, researchers at the University of Cincinnati have explored the use of Mg single crystal as an alternative to its polycrystalline form. Mg single crystal is typically grown with directional solidification methods where the metal is melted and then cooled extremely slowly, starting from one side of the melt and using a seed crystal. This approach does not allow for customization of the crystal shape and size, thus limiting the use of Mg single crystal for commercial applications.