A first look at the formation of PEO-PDA coatings on 3D titanium  

作　　者：K.V.Nadaraia D.V.Mashtalyar M.A.Piatkova A.I.Pleshkova I.M.Imshinetskiy M.S.Gerasimenko E.A.Belov G.A.Zverev S.L.Sinebryukhov S.V.Gnedenkov 

机构地区：[1]Institute of Chemistry,Far Eastern Branch,Russian Academy of Sciences,Vladivostok 690022,Russia

出　　处：《ChemPhysMater》2024年第4期451-461,共11页化学物理材料（英文）

基　　金：The formation of coatings,as well as SEM and EDS,was supported by Russian Science Foundation Grant No.22-73-10149,https://rscf.ru/project/22-73-10149/;The electrochemical studies and wettability measurements were supported by the Russian Science Foundation Grant No.23-13-00329,https://rscf.ru/project/23-13-00329/.

摘　　要：Additive manufacturing has revolutionized implantology by enabling the fabrication of customized,highly porous implants.Surface modifications using electrochemical methods can significantly enhance the bioactivity and biocompatibility of biomaterials,including 3D-printed implants.This study investigates novel coatings on 3D titanium(Ti)samples.Mesh Ti samples were designed and subjected to plasma electrolytic oxidation(PEO)to form a calcium phosphate coating.Subsequently,a layer of polydopamine(PDA)was applied.The electrochemical properties and morphology of the coatings were analyzed.Scanning electron microscopy(SEM)and energy-dispersive X-ray spectroscopy(EDS)revealed well-developed coatings containing calcium phosphates(including hydroxyapatite),titanium dioxide,and polymerized dopamine,suggesting promising bioactive potential.Composite layers incorporating PDA exhibited superior protective properties compared to base PEO coatings.

关 键 词：Titanium alloy Plasma electrolytic oxidation HYDROXYAPATITE Bioactive coatings POLYDOPAMINE 

分 类 号：TG146.23[一般工业技术—材料科学与工程]