Adsorption behavior of low density lipoprotein on titanium surface

doi:10.19439/j.sjos.2021.01.010

Abstract

Abstract: PURPOSE: The purpose of this study was to investigate the adsorption of low density lipoprotein (LDL) on titanium surface. METHODS: Pure titanium specimens were soaked with different concentrations of LDL (0, 1, 2 mg/mL). Low density lipoprotein essay was used to analyze the change of LDL adsorption on titanium surface with time going on. Scanning electron microscope(SEM) and X-ray photoelectron spectroscopy(XPS) were used to observe and analyze the adsorption of LDL on titanium surface and its effect on element composition of titanium surface. Contact angle of titanium surface was detected before and after LDL adsorption. SPSS 22.0 software package was used for statistical analysis of the data. RESULTS: The adsorption amount of LDL on titanium surface gradually increased as time went on. XPS analysis results showed that LDL was adsorbed on the titanium surface, the content of titanium and oxygen elements seemed to decrease on the titanium surface, and the hydrophilicity of the titanium surface declined. CONCLUSIONS: LDL can adsorb on titanium surface, which can change the physical and chemical properties of titanium surface to a certain extent.

Key words: Low density lipoprotein, Titanium, Adsorption

CLC Number:

R783.1

XU Li-na, YU Ying-juan, SUN Jian. Adsorption behavior of low density lipoprotein on titanium surface[J]. Shanghai Journal of Stomatology, 2021, 30(1): 50-54.

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