The influence of ultraviolet irradiation on sandblasted and acid-etching surface adsorbing human fibronectin
10.3760/cma.j.issn.1002-0098.2014.04.009
- VernacularTitle:紫外线辐照对纯钛喷砂酸蚀表面理化性能及人纤连蛋白吸附的影响
- Author:
Shaobing LI
1
;
Xueyang ZHANG
;
Jia NI
;
Congyun WEI
;
Mingdeng RONG
;
Lei ZHOU
Author Information
1. 广东省口腔医院·南方医科大学附属口腔医院牙周种植科
- Keywords:
Titanium;
Ultraviolet rays;
Chemistry,physical;
Fibronectins;
Adsorption
- From:
Chinese Journal of Stomatology
2014;49(4):234-238
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the influence of ultraviolet (UV) irradiation on physical and chemical properties of sandblasted and acid-etched (SA) titanium surface and their ability to adsorb human fibronectin (HFn).Methods SA and UV-SA surfaces were separately prepared.Surface morphology,roughness,elemental composition,wettability and HFn adsorption assay were performed for comparative analysis of these two surfaces.Results SA and UV-SA surface had a similar morphology with multi-holes,and average roughness.UV-SA surface had a lower C content (22.83％) and higher O content (51.20％) and presented hydrophilicity,while SA surface showed hydrophobicity.But the quantity of adsorbed HFn on SA surface at 10 min assay point [(0.41 ±0.07) μg] was statistically higher than that on UV-SA surface [(0.26 ± 0.08) μg] (P =0.007).Conclusions UV irradiation would not change the morphology and roughness of SA surface.However,it could reduce the hydrocarbon and increase the hydroxyl groups,and the absorption of HFn on UV-SA surface at 10 min assay point was statistically lower than that on SA surface.Therefore,the in-vitro bioactivity of UV-SA surface was not as good as that of SA surface.
