Composite coatings of S-HA nanoparticles and Schiff base on ZE21B alloy for stronger corrosion resistance and biological performance  

作　　者：Zhonghua Xue Xiaojing Sun Hang Li Mujahid Iqbal Liujie Qi Fei Wang Yachen Hou Jingan Li Shaokang Guan 

机构地区：[1]School of Material Science and Engineering&Henan Key Laboratory of Advanced Magnesium Alloy&Key Laboratory of materials processing and mold technology(Ministry of Education),Zhengzhou University,100 Science Road,Zhengzhou 450001,China [2]Department of Physics,University of Agriculture Faislabad,Agriculture University Road,Faisalabad 38000,Pakistan [3]Department of Cardiology,The First Affiliated Hospital of Zhengzhou University,Zhengzhou,Henan,450052,China

出　　处：《Journal of Magnesium and Alloys》2024年第11期4547-4560,共14页镁合金学报(英文)

基　　金：Joint Fund of the National Natural Science Foundation of China(U2004164);Key Scientific and Technological Research Projects in Henan Province(grant number 232102311155 and 232102230106);Zhengzhou University College Student Innovation and Entrepreneurship Training Program(13210022);Natural Science Foundation of the Jiangsu Higher Education Institutions of China(grant number 21KJB430013)。

摘　　要：In order to prolong the service time and enhance the biocompatibility of magnesium(Mg)alloys used for cardiovascular scaffolds,the composite coatings of Schiff base(corrosion inhibitor)and sulfonated hyaluronic acid(S-HA)nanoparticles(NP@S-HA)with different sulfur content(10.02 wt%and 11.55wt%)were prepared on ZE21B alloy by means of electrostatic spraying with spraying time of 0.5 min,1.0 min and 1.5 min in this paper.Through a series of representations including corrosion experiments and biological characterization,the composite coatings with a sulfur content of 11.55wt%and a spray time of 1.0 min were finally picked due to its better comprehensive performances,which provides a new possibility for the surface modification of degradable Mg alloy cardiovascular scaffolds.

关 键 词：Biodegradable magnesium alloy Sulfonated hyaluronic acid NANOPARTICLES Corrosion resistance BIOCOMPATIBILITY 

分 类 号：TG174.4[金属学及工艺—金属表面处理]