Surface Engineering of Biodegradable Magnesium Alloys as Orthopedic Implant Materials: Recent Developments and Future Prospects

Coatings, Journal Year: 2025, Volume and Issue: 15(2), P. 191 - 191

Published: Feb. 6, 2025

Magnesium and its alloys are widely used for bone fixation repair due to their biodegradability. However, application is limited poor corrosion resistance rapid degradation rate in the human body. Surface engineering represents an effective approach modifying characteristics of magnesium meet requirements biological systems. Constructing bioactive coatings on surface substrates essential improve biocompatibility resistance, representing method modification. This review summarizes current research construction alloys, including inorganic coatings, polymer composite which presents analysis respective statuses. Furthermore, this discusses future developments biodegradable alloy systems, focusing achieving satisfactory specifications clinical trials implementation. Its goal provide critical insights materials scientists practitioners involved development applicable alloys.

Language: Английский

Fabrication and characterization of the multifunctional coating composites fabrics: Waterproofing, breathability and daytime radiative cooling

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: May 7, 2025

Abstract The development of high‐performance protective clothing is essential for ensuring the safety and comfort healthcare workers. Traditional materials often face challenges in breathability, waterproofing, thermal management. In this study, we fabricated polylactic acid/silicon dioxide–polyvinylidene fluoride /alumina (PLA/SiO 2 –PVDF/Al O 3 ) composite fabrics by coating PLA/SiO microfibers with PVDF/Al . resulting composites exhibited a microfibrous structure 82.1% porosity fiber diameters 10 μm, leading to enhanced air permeability (115.1 mm/s) water vapor (1686.4 g/m ·24 h). incorporation PVDF Al improved waterproofing properties significantly, increasing contact angle 138.1° hydrostatic pressure resistance 2382.2 Pa. Furthermore, radiative cooling efficiency was markedly enhanced, temperature reduction 9.0°C compared uncoated microfibers, achieving 87.4% reflectance 98.4% emissivity. These results demonstrate that fabrics, through simple process, exhibit excellent efficient daytime cooling, making them highly suitable applications. Highlights breathable acid were developed. fabric demonstrates μm microfibers. coated specimen hydrophobicity, robust protection. High emissivity (98.4%) indicates cooling.

Language: Английский

Study on the role of functional groups of templates in the hydrothermal synthesis of hydroxyapatite on magnesium surfaces: A comparison between ethylenediamine and oxalic acid

Surface and Coatings Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131681 - 131681

Published: Dec. 1, 2024

Language: Английский