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Your search keyword '"Hou, Ruiqing"' showing total 42 results
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42 results on '"Hou, Ruiqing"'

24. Study on Degradation Behavior of Porous Magnesium Alloy Scaffold Loaded with Rhbmp-2 and Repair of Bone Defects

Author

Zhang, Yuan, primary, Ding, Yan, additional, Wang, Jun, additional, Hou, Ruiqing, additional, Zheng, Mingran, additional, Ma, Delin, additional, Huang, Junfei, additional, Li, Wenxiang, additional, Zhao, Qichao, additional, Sun, Zhaotong, additional, Li, Wancheng, additional, Wang, Jie, additional, Zhu, Shijie, additional, Wang, Liguo, additional, Wu, Xiaochao, additional, and Guan, Shaokang, additional

Published
2023
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26. Effects of proteins on magnesium degradation - static vs. dynamic conditions.

Author

Hou, Ruiqing, Feyerabend, Frank, Helmholz, Heike, Garamus, Vasil M., and Willumeit-Römer, Regine

Subjects
PROTEOLYSIS, CALCIUM ions, PHYSIOLOGIC salines, PROTEIN-protein interactions, FLUID flow, SERVICE life, SERUM albumin
Abstract

• Proteins promote the formation of Ca/P-rich products on mg surface in static immersion. • Protein adsorption is largely reduced during mg degradation under flow condition. • Interaction between proteins and released ions/products is enhanced in solution under flow conditions. • Fluid flow leads to protein-accelerated degradation of mg. The interaction between organic molecules and biomaterial surfaces determines the fate of biomaterials during their service life, which is also the research hotspots in the field of biomaterials. To understand the mechanism of protein interaction with magnesium (Mg) degradation, alloying elements, immersion time, protein concentration and surface conditions have been previously considered for the effect of proteins on Mg degradation. However, fluid flow, as one of the critical factors, drew little attention in this case. In the present study, the effect of bovine serum albumin (BSA) and fetal bovine serum (FBS) on Mg degradation was compared under static and dynamic conditions. The results revealed that both BSA and FBS slightly decreased the degradation rate of Mg in Hanks' balanced salt solution (HBSS) under static immersion due to the protein adsorption and the formation of a Ca/P-rich top layer on Mg surface, whereas under dynamic flow condition the degradation of Mg was significantly accelerated in the presence of BSA or FBS. The reasons seemed to stem from the weakened protein adsorption on Mg surface in this case and the dynamically enhanced interaction between proteins and ions/products in solutions, which largely weaken the combination of the top Ca/P-rich layer with the inner corrosion product layer. These results highlight the importance of testing conditions for Mg characterization in vitro and the synergistic effect between different parameters on Mg degradation. [ABSTRACT FROM AUTHOR]

Published
2023
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31. Improved biocompatibility and degradation behavior of biodegradable Zn-1Mg by grafting zwitterionic phosphorylcholine chitosan (PCCs) coating on silane pre-modified surface

Author

Sheng, Yinying, primary, Yang, Junjie, additional, Hou, Ruiqing, additional, Chen, Lianxi, additional, Xu, Jiesheng, additional, Liu, Hui, additional, Zhao, Xueyan, additional, Wang, Xiaojian, additional, Zeng, Rong, additional, Li, Wei, additional, and Xie, Yimin (Mike), additional

Published
2020
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41. First Isolation and Characterization of Ochrobactrum anthropifrom Pig

Author

Gu, Shijiang, Hou, Ruiqing, Gao, Shengguo, Sun, Zhe, Li, Xiangdong, Zhai, Lufeng, Jin, Yunyun, Zhu, Qiaoyan, Liao, Yonghong, and Tian, Kegong

Abstract

One Gram-negative Bacilluswas isolated from a brain sample of a pig with neurological symptoms. Pathological examination showed meningitis at necropsy. Ochrobactrum anthropi(O. anthropi) was successfully isolated from the brain sample and was confirmed by biochemical reaction results (API 20 NE) and gene sequencing. The strain was highly resistant to β-lactam antibiotics. Mice were experimentally infected with O. anthropiand showed typical meningitis. This is the first report on O. anthropiisolated from a pig, and indicates that O. anthropimay have a broader host spectrum of infection.

Published
2020
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