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  5. 生物電紡技術製備含PC12細胞之順向中空纖維薄膜及管內細胞生長行為評估
 
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生物電紡技術製備含PC12細胞之順向中空纖維薄膜及管內細胞生長行為評估

Other Title
In Vitro Study of Bio-Electrospun Microtube Array Membranes Containing PC12 Cells
Type
thesis
Date Issued
2012-07-02
Author(s)
陳建華
Advisor
陳建中
Subjects
系所名稱:生醫材料暨工程研究所
Publisher
生醫材料暨工程研究所
Description
學位別:碩士
語文別:中文
指導教授:陳建中
共同指導教授:
口試委員:楊正昌;賴瑞陽
中文關鍵字:PC12類神經細胞;生物電紡;順向中空纖維薄膜;神經再生
Abstract
神經再生醫學中,理想神經導管設計概念是以具生物相容性與可降解性高分子為基材(scaffold),且須具備適當的微孔及順向結構提供神經細胞貼附生長與利於養分與代謝物置換,亦有接觸導引(contact guidance)之作用,使神經細胞有序列地向斷端處生長,幫助神經系統修復與再生。本研究目的在於以生物電紡技術(bio-electrospinning)技術整合電氣紡絲(electrospinning)製程與細胞,製備含有神經細胞之聚乳酸順向中空纖維薄膜,並評估薄膜內細胞生長形態以及細胞活性與分化能力。生物電紡技術可直接以一製程結合組織工程要素,可將神經細胞導入支架中,相較於傳統單一管道神經修復導管有較多比表面積,可增加細胞貼附面積同時也能導引神經細胞生長方向性。研究結果顯示,PC12類神經細胞經電場強度0~2.2 k V/cm刺激時,仍具有細胞活性與增生能力。 4% w/v (PEO:PEG = 1:1)內管溶液對於PC12類神經細胞具有良好細胞相容性,BCA assay 數據顯示,PC12類神經細胞於順向中空纖維薄膜內亦有生物活性與增生能力,將細胞排列角度計算為細胞順向度,結果顯示控制組順向度較低,約為14.2 ± 1%;而Pure PLA順向中空纖維薄膜組別順向度為94.9 ± 9%; PLA/PEG40 %組別順向度為90 ± 7%,顯示順向中空結構可導引PC12類神經細胞軸突生長方向性。本研究以生物電紡技術設計概念,利用靜電紡絲技術將PC12類神經細胞導入聚乳酸順向中空纖維薄膜內,其薄膜具導引細胞生長方向之特性,管內細胞具有活性與增生能力,經過一系列細胞體外評估,期望未來能應用神經修復與再生。
URI
https://203.71.86.71/handle/123456789/10967

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