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題 名 | Studies of Cell Adhesion and Growth on Different Material Surfaces by Using a Flow Chamber=以細胞流動室探討不同材料表面對細胞吸附生長之研究 |
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作 者 | 張淑真; 王盈錦; 林立群; 郭士民; | 書刊名 | Journal of Medical and Biological Engineering |
卷 期 | 20:4 2000.12[民89.12] |
頁 次 | 頁231-238 |
分類號 | 410.1644 |
關鍵詞 | 細胞流動室; 細胞吸附; 聚離胺酸; 表面性質; Flow chamber; Cell adhesion; Poly(L-lysine); Surface characteristics; |
語 文 | 英文(English) |
中文摘要 | 分析細胞與材料之間的交互作用在生物相容性的探討、細胞培養、細胞吸附與人造器官的發展上扮演著重要的角色。材料表面的性質例如親疏水性、表面帶電性、表面化性及表面粗糙度都會影響細胞的吸附。在本研究中建立一可高溫高壓滅菌多通道之細胞流動室系統,能提供穩定的生長環境及不同剪應力的流場,藉由此系統評估細胞的吸附及生長情形。研究中製備多種不同表面性質的材料進行探討。結果顯示聚碳酸酯經電漿處理後其細胞吸附生長情形較未處理的聚碳酸酯來得好。帶正電荷的聚離胺酸表面其細胞吸附生長情形較佳,細胞的吸附率 (經過31dyne/cm2的剪應力沖刷後) 分別為玻璃 (0.78) ,及聚離胺酸 (0.82)。然而在poly (HEMA) 水膠上的細胞在剪應力為6 dyne/cm2時已被沖刷掉一半,顯示細胞在poly (HEMA) 水膠上的吸附力不佳。 |
英文摘要 | Analyses of cell-substrate interactions are important in many aspects including biocompatibility, cell culture, cell spreading and development of artificial organs. It is recognized that the adhesion of anchorage cells on materials depends on surface characteristics such as hydrophobicity, surface charge, surface chemistry and roughness. In this study, an autoclavable multi-channel flow chamber and associated medium circulation system was constructed to provide a stable environment and a range of shear stress for evaluation of cell attachment and growth. Surfaces with different chemistry (glass, glass coated with poly(L-lysine) and poly(HEMA)) and wettability (polycarbonate and plasma-modified polycarbonate) were prepared. The preliminary results showed that 3T3 fibroblast cells adhesion strength increased significantly on the plasma-modified polycarbonate. The surface coated with poly(L-lysine) was shown to be better for cell adhesion as compared with glass surface. Their retention ratios were 0.82 and 0.78, at the shear stress of 31 dyne/cm2, respectively. Incidentally, half of the adhered cells were flushed out from the poly(HEMA) hydrogel surface by a flow shear stress of 6 dyne/cm2. |
本系統中英文摘要資訊取自各篇刊載內容。