The authors retract the article due to unacceptable duplication without proper attribution in sections 2.1, and 2.2 and Figures 1, 2, 5, and 11 from a previously published article, “Effect of Regulation of Surface Charge on Titanium Surfaces for Fibronectin Adsorption” DOI: (http://ci.cqvip.com/Qikan/Article/Detail?id=7102476846). Additionally, the authors have agreed that such actions potentially provide misleading conclusions and analysis of experiments, raising significant doubts on the main findings of the work. As such, the article is being retracted.
The original Article was published on 10/02/2020 and retracted on 08/19/2021.