Engineered porous bio-ceramic coating with antibacterial and excellent biocompatibility on the surface of low modulus multi-component titanium alloy

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-04-03 DOI:10.1016/j.surfcoat.2025.132121

Hong Wu , Ziqing Duan , Luxin Liang , Gen Li , Qingge Wang , Jingbo Liu , Aqsa Kanwal , Bing Wang , Cuie Wen , Lin Bo

{"title":"Engineered porous bio-ceramic coating with antibacterial and excellent biocompatibility on the surface of low modulus multi-component titanium alloy","authors":"Hong Wu , Ziqing Duan , Luxin Liang , Gen Li , Qingge Wang , Jingbo Liu , Aqsa Kanwal , Bing Wang , Cuie Wen , Lin Bo","doi":"10.1016/j.surfcoat.2025.132121","DOIUrl":null,"url":null,"abstract":"<div><div>In order to integrate biomimetic porous structure with bioactive metal elements, a novel containing-Ag/Mg coating was developed on the surface of Ti-Nb-Zr-Mg (TNZM) alloy with low modulus using micro-arc oxidation (MAO) technology. The thickness of MAO coating with dual-layered structure gradually decreases with the increase of AgNO<sub>3</sub> concentration in the electrolyte. The inner layer in the MAO coating comprising basal elemental oxides (TiO<sub>2</sub>, Nb<sub>2</sub>O<sub>5</sub>, ZrO<sub>2</sub>, and MgO) shows high degree of density and continuity. In contrast, the outer layer in the MAO coating exhibits a morphology typical of a volcanic pile pore surface. In addition to having the same metal oxides as the inner layer, the outer layer also contains hydroxyapatite Ca, P, Ag and O. The MAO coatings provide barrier protection, the ranking for corrosion rate from low to high is: MAO-2 < MAO-3 < MAO-1 < TNZM. The antibacterial rate of MAO-3 against <em>E. coli</em> is as high as 100 %. Meanwhile, the porous structure and released Ca/P/Mg synergistically regulate early osteoblast attachment and activity. This result indicates that the Mg and Ag sustained-release bionic MAO coating has excellent corrosion resistance, antibacterial properties, and cytocompatibility. Engineered porous bio-ceramic coating has potential application prospects in the field of bone implantation.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132121"},"PeriodicalIF":5.3000,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface & Coatings Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0257897225003950","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}

引用次数: 0

Abstract

In order to integrate biomimetic porous structure with bioactive metal elements, a novel containing-Ag/Mg coating was developed on the surface of Ti-Nb-Zr-Mg (TNZM) alloy with low modulus using micro-arc oxidation (MAO) technology. The thickness of MAO coating with dual-layered structure gradually decreases with the increase of AgNO₃ concentration in the electrolyte. The inner layer in the MAO coating comprising basal elemental oxides (TiO₂, Nb₂O₅, ZrO₂, and MgO) shows high degree of density and continuity. In contrast, the outer layer in the MAO coating exhibits a morphology typical of a volcanic pile pore surface. In addition to having the same metal oxides as the inner layer, the outer layer also contains hydroxyapatite Ca, P, Ag and O. The MAO coatings provide barrier protection, the ranking for corrosion rate from low to high is: MAO-2 < MAO-3 < MAO-1 < TNZM. The antibacterial rate of MAO-3 against E. coli is as high as 100 %. Meanwhile, the porous structure and released Ca/P/Mg synergistically regulate early osteoblast attachment and activity. This result indicates that the Mg and Ag sustained-release bionic MAO coating has excellent corrosion resistance, antibacterial properties, and cytocompatibility. Engineered porous bio-ceramic coating has potential application prospects in the field of bone implantation.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.