title: The Influence of Electrolytic Concentration on the Electrochemical Deposition of Calcium Phosphate Coating on a Direct Laser Metal Forming Surface.
abstract: A calcium phosphate (CaP) coating on titanium surface enhances its biocompatibility, thus facilitating osteoconduction and osteoinduction with the inorganic phase of the human bone. Electrochemical deposition has been suggested as an effective means of fabricating CaP coatings on porous surface. The purpose of this study was to develop CaP coatings on a direct laser metal forming implant using electrochemical deposition and to investigate the effect of electrolytic concentration on the coating's morphology and structure by X-ray diffraction, scanning electron microscopy, water contact angle analysis, and Fourier transform infrared spectroscopy. In group 10-2, coatings were rich in dicalcium phosphate, characterized to be thick, layered, and disordered plates. In contrast, in groups 10-3and 10-4, the relatively thin and well-ordered coatings predominantly consisted of granular hydroxyapatite. Further, the hydrophilicity and cell affinity were improved as electrolytic concentration increased. In particular, the cells cultured in group 10-3appeared to have spindle morphology with thick pseudopodia on CaP coatings; these spindles and pseudopodia strongly adhered to the rough and porous surface. By analyzing and evaluating the surface properties, we provided further knowledge on the electrolytic concentration effect, which will be critical for improving CaP coated Ti implants in the future.
authors.affiliation: Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China; Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China.
authors.forename: Qianyue
authors.identifier: 0000-0002-6180-4649
authors.initials: Q
authors.lastname: Sun
authors.affiliation: Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China.
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China.
authors.forename: Wenjing
authors.initials: W
authors.lastname: Luo
authors.affiliation: Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China.
authors.forename: Jinghui
authors.identifier: 0000-0001-7714-9733
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China.
authors.forename: Yanmin
authors.identifier: 0000-0002-4173-6765
authors.initials: Y
authors.lastname: Zhou