Novel transcatheter aortic heart valves exhibiting excellent hemodynamic performance and low-fouling property
文献类型：期刊论文
| 作者 | Guo, F.2,3; Jiao, K.2,3; Bai, Y.2,3; Guo, J.1; Chen, Q.4; Yang, R.2,3; Zhang, X.2,3 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 35期号:1页码:207-215 |
| 关键词 | Transcatheter aortic heart valve Textile fabric Poly(ethylene glycol) diacrylate Anti-fouling |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2018.09.026 |
| 通讯作者 | Guo, J.(guojing@dlpu.edu.cn) ; Zhang, X.(xingzhang@imr.ac.cn) |
| 英文摘要 | Transcatheter aortic heart valves (TAHVs) have been widely used for aortic valve replacements, with less trauma and lower clinical risk compared with traditional surgical heart valve replacements. In the present study, composites of poly(ethylene glycol) diacrylate (PEGDA) hydrogels and anisotropic high-shrinkage polyethylene terephthalate/polyamide6 (PET-PA6) fabric (PEGDA/PET-PA6) were fabricated as artificial heart valve leaflets. Dynamic mechanical analyses (DMA) indicated that PEGDA/PET-PA6 composites possessed anisotropic mechanical properties (i.e., storage moduli similar to 23.30 +/- 1.36 MPa parallel to the aligned fabric fibers and similar to 9.68 +/- 0.90 MPa perpendicular to the aligned fibers at 1 Hz) that were comparable to aortic valve leaflets. The PEGDA/PET-PA6 composites with smooth surfaces were highly hydrophilic (contact angle similar to 41.6 degrees +/- 3.8 degrees) and had low-fouling properties without platelet adhesion, suggesting a low risk of thrombogenicity when they interacted with blood. Furthermore, transcatheter aortic heart valves were fabricated using nitinol self-expanding frames and PEGDA/PET-PA6 composites as artificial leaflets, which presented excellent hemodynamic performance with a large orifice area (1.75 cm(2)) and low regurgitation (3.41%), thus meeting the requirements of ISO 5840-3 standard. Therefore, PEGDA/PET-PA6 composites had suitable mechanical properties, good biocompatibility, and low-fouling properties, indicating that they might be used for TAHVs in the future. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Natural Science Foundation of China[31670981] ; National Natural Science Foundation of China[31300788] ; Hundred-Talent Program from Chinese Academy of Sciences |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000449263900028 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National Natural Science Foundation of China ; Hundred-Talent Program from Chinese Academy of Sciences |
| 源URL | [http://ir.imr.ac.cn/handle/321006/130209]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Guo, J.; Zhang, X. |
| 作者单位 | 1.Dalian Polytech Univ, Sch Text & Mat Engn, Dalian 116034, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 239056, Anhui, Peoples R China 4.Lumenous Peiertech, Jiangyin 214437, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, F.,Jiao, K.,Bai, Y.,et al. Novel transcatheter aortic heart valves exhibiting excellent hemodynamic performance and low-fouling property[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(1):207-215. |
| APA | Guo, F..,Jiao, K..,Bai, Y..,Guo, J..,Chen, Q..,...&Zhang, X..(2019).Novel transcatheter aortic heart valves exhibiting excellent hemodynamic performance and low-fouling property.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(1),207-215. |
| MLA | Guo, F.,et al."Novel transcatheter aortic heart valves exhibiting excellent hemodynamic performance and low-fouling property".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.1(2019):207-215. |
入库方式： OAI收割
来源：金属研究所
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