王天笑

Assistant Professor   Supervisor of Master's Candidates

Gender:Male

Alma Mater:吉林大学

Degree:Doctoral Degree

School/Department:化工学院

Discipline:Chemical Engineering

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Paper Publications

A polydopamine-based calcium phosphate/graphene oxide composite coating on magnesium alloy to improve corrosion resistance and biocompatibility for biomedical applications

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Date:2026-01-13

Links to Published Journals:https://www.sciencedirect.com/science/article/pii/S2589152922000023

Indexed by:Journal Article

Date of Publication:2022-01-10

Journal:Materialia

Included Journals:SCI

Volume:21

ISSN:2589-1529

Key Words:Magnesium alloy, Composite coating, Corrosion resistance, Biocompatibility

Abstract:In order to improve the corrosion resistance and biocompatibility of magnesium (Mg) alloy and reduce the rapid degradation rate, which limits its biomedical application, a calcium phosphate (CaP)/graphene oxide (GO) composite coating based on polydopamine (PDA) was prepared. PDA was used as a pretreatment layer to induce biomimetic deposition of CaP, and then GO as a sealing layer was spin-coated with ethanol and water as dispersants, respectively. The composition, morphology, corrosion resistance and biocompatibility of the composite coating were characterized and tested. The result of electrochemical and immersion test shows that the corrosion resistance of the PDA/CaP/GO composite coating was significantly enhanced. Meanwhile, the in vitro cell experiments indicates that the composite coating promotes cell adhesion and improves biocompatibility. Moreover, the corrosion resistance and biocompatibility of the PDA/CaP/GO composite coating with water as the dispersant is better than that with ethanol, and is significantly improved compared with the Mg alloy, indicating the good potential for development in the biomedical field.

DOI Number:10.1016/j.mtla.2022.101315

Impact Factor:2.9

Personal Profile

Tianxiao Wang, the assistant professor, obtained his doctoral degree from Jilin University, China in 2023. Then, he worked as a postdoc at Umeå University, Sweden from 2023 to 2025. His research interests include anti-fouling coating, microbiological influenced corrosion and biomedical materials especially magnesium alloy based biomaterials. He have published over 10 papers on journals including Journal of Magnesium Alloys, Progess of Organic Coatings and Ceramisc International and so on. The students who are interested in corrosion resistant coatings and biomaterials are welcomed.

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