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研究生: 張世裕
論文名稱: 發展一個研究神經網路發育與功能之方法學
Development of a Methodology for Studying the Neuronal Networks Development and Function
指導教授: 張兗君
口試委員: 周韻家
傅建中
學位類別: 碩士
Master
系所名稱: 生命科學暨醫學院 - 分子醫學研究所
Institute of Molecular Medicine
論文出版年: 2011
畢業學年度: 99
語文別: 中文
論文頁數: 60
中文關鍵詞: 神經網路PDMS海馬迴光學微影術
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  • 於過往神經細胞的體外培養,通常是需要事先被覆適合的分子在培養基板上,以幫助神經細胞貼附生長。因此,利用微壓印技術先在培養基板轉印出特定分子圖案,再投入神經細胞,就能夠侷限神經細胞只貼附在培養基板的特定分子圖案區域,之後神經突起生長也必須遵循此圖案形式。然而,這樣的方法不能避免大面積的神經聚集團出現在圖案上,破壞生長形式的規則與完整性。因此,在本實驗中,我們發展一個方法學,試圖去控制細胞本體只座落在圖案的特定位置上,進而生長成神經網路,並且使大面積神經聚集團的出現機率降低。
    利用光學顯影技術製作一系列不同規格大小的微米等級的模仁,再由這些模仁翻製出我們所需的PDMS模板。此模板頂部具有64個圓孔,以8 × 8陣列形式排列,底部則為8 × 8方形網狀溝槽,上下相通,將PDMS模板貼附到玻片,加入poly-L-lysine (PLL)使其流入孔洞而在玻片上建立方形網狀圖案。投入細胞後,透過PDMS模板侷限神經細胞只能掉落在特定的位置上,並沿著PLL圖案生長形成神經網路。藉由此方法學的建立,我們將能夠利用活體影像觀察、免疫螢光染色以及電生理紀錄去研究神經網路的發展,最終可以與微電極陣列結合應用,進而去了解神經網路對於各種形式的訊號輸入所產生的反應。


    英文摘要 i 中文摘要 iii 謝誌 iv 目錄 i 壹、緒論 1 貳、材料與方法 一、實驗材料 8 二、實驗方法 10 (一) SU-8微結構的製作 10 (二) PDMS模板的設計與製作 11 (三) 細胞培養分隔框的設計與製作 12 (四) PLL網狀圖案的建立 13 (五) 初代海馬迴神經細胞培養 14 (六) 免疫螢光染色 16 (七) Fluorescein與poly-L-lysine 的接合 ( 簡稱FI-PLL ) 18 (八) 統計方法與分析 18 參、結果 一、神經網路培養基板的製程 19 二、神經網路基板的培養結果 21 三、針對神經網路培養出現的問題改進培養方法 25 肆、討論 一、探討神經培養過程中的問題 28 二、改進神經網路培養基板裝置 31 伍、圖表 圖一、方形神經網路培養流程。 33 圖二、SU-8模仁的電子掃描顯微圖像。 36 圖三、PDMS模板的電子掃描顯微圖像。 37 圖四、於玻片上建立FI-PLL方形網路圖案。 39 圖五、投入細胞後第一天的海馬迴神經細胞培養紀錄。 41 圖六、分析神經網路培養第一天,具神經細胞的節點相對於全部節點的百分比與單一節點的細胞數目。 43 圖七、海馬迴神經細胞以及突觸囊泡在神經網路的分佈情形。 46 圖八、不同細胞數在各個時間點細胞本體與神經突起的形態 48 圖九、投入海馬迴神經細胞後,在PDMS模板以及玻片的貼附分佈情形。 50 圖十、高體積細胞液的神經細胞培養結果 51 圖十一、以螢光染色觀察PDMS模板與細胞培養分隔框 54 圖十二、神經網路培養基板改進示意圖 55 陸、參考文獻 56 柒、附錄 60

    曾煥昌 (2005) 利用微接觸壓印方式分離皮質神經生長錐結構,並探討微圖案培養時細胞聚集現象之成因。國立清華大學分子醫學研究所碩士論文

    何顗琤 (2005) 以微轉印及微模板技術建立神經細胞陣列。國立清華大學奈米工程與微系統研究所碩士論文

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