Bioabsorbable WE43 Mg alloy wires modified by continuous plasma electrolytic oxidation for implant applications. Part II: Degradation and biological performance

Bioabsorbable WE43 Mg alloy wires modified by continuous plasma-electrolytic oxidation for implant applications. Part I: Processing, microstructure and mechanical properties

“…This new strategy seems suitable for upscaling and thus industrial application using large quantities of Mg wires and seems to be the first to provide high quality surface modification of metallic wires by PEO using a continuous process. While the relationship between the processing conditions (degree of cold work, annealing temperature and time, PEO parameters) and the microstructure of the wires (grain size, dislocation and precipitate structures, oxide layer thickness, porosity and composition) as well as tensile behavior is reported in this first part of our work, further links between the microstructure and the degradation and biological performance of the wires is reported in the second part of our work [38].…”

Medical grade 3D printable bioabsorbable PLDL/Mg and PLDL/Zn composites for biomedical applications

“…They facilitate further water ingress, accelerating the degradation process, which is clear from the secondary electron image in Figure 4B where substantial degradation of the polymer matrix is observed, in agreement with previous studies in fiber-reinforced PLA/Mg composites. 19,49 Moreover, it is also likely that the presence of Mg(OH) 2 catalyzes the hydrolysis of PLDL around the particle. 50 The detail of a Zn particle in the PLDL + Zn composite in the asprinted condition and after 21 weeks in PBS at 37 C is shown in Figure 5A,B, respectively.…”

“…16,17 However, Mg presents high reactivity and short degradation times, with oxide coatings often being needed to ensure good biocompatibility, while Zn and Fe lead to long degradation times. 16,[18][19][20][21] Metal/polymer and ceramic/polymer composites based on bioabsorbable materials have been developed in recent years to broaden the range of available materials with tailored degradation rate, mechanical properties and biocompatibility. 22,23 They are often based on a PLA matrix reinforced with either Mg fibers or Mg or hydroxyapatite particles.…”

Effect of T4 treatment on the corrosion resistance of Mg-4Al-6Er-0.3Mn alloy

“…Efforts to enhance the corrosion resistance of magnesium alloys involve various techniques such as heat treatment [27][28][29], alloying with elements [9], and surface modification [30][31][32][33]. Surface modifications can improve corrosion resistance and durability effectively, while it can be complex, damage the matrix and potentially impact dimensional tolerances.…”