本論文分為兩部分，第一部分為將光固化材料應用於生醫材料，分別利用紫外光起始聚合法、以及大氣電漿聚合法製備各式樣本，並以不同的方法增加光固化材料之生物相容性。其中，對於紫外光起始聚合法所製備之光固化材料，利用兩種不同的方法進行表面改質：(1)以的浸泡方式將聚多巴胺 (polydopamine, PDA)修飾於光固化材料表面；(2)以氬氣形成之大氣電漿電子束 (atmospheric pressure argon plasma jet)處理光固化材料表面。此外，為了比較添加光起始劑對於聚合光固化材料時，對於生物相容性之影響，嘗試以大氣電漿取代光起始劑，作為活性物質提供者(如自由基等)，以聚合光固化材料。第二部分利用吡 (pyrrole, Py)為前驅物，製備含有胺基之導電性高分子薄膜，並探討不同電漿參數以及後處理對於薄膜特性之影響。
論文第一部分，是利用PDA修飾於五種不同的光固化材料表面：(i) AA、(ii) PSiO-IBOA、(iii) PSiO-EOEA、(iv) PE-EOEA、以及(v) PC-IBOA，並以L-929老鼠纖維母細胞培養於樣本表面，探討材料生物相容性。由LDH活性檢測法 (乳酸脫氫法, lactate dehydrogenase assay)分析結果顯示，五種光固化材料經過PDA修飾後，細胞密度除了在AA樣本之外，皆有上升的趨勢，特別是PSiO-EOEA在修飾PDA後，細胞密度相較於未修飾提升至142%，由於PSiO-EOEA經由修飾PDA前後之細胞密度，在五種材料中差異性最大，因此後續皆以PSiO-EOEA作為研究樣本。利用氬氣APPJ改質PSiO-EOEA，並藉由接觸角測量表面親疏水性，結果顯示在氬氣APPJ掃描3次 (PSiO-3N) (N: scan number)以及5次 (PSiO-5N)後，水接觸角由未經處理的101.8°分別下降至20.7°及12.6°，顯示經由氬氣電漿處理後可得到親水性之表面。此外，亦將PDA修飾於PSiO-5N之樣本表面 (PSiO-5N-PDA)，並探討材料生物相容性，LDH結果顯示，PSiO-5N以及PSiO-5N-PDA之細胞密度與未改質之材料相比，分別提升至112%以及260%，結果指出，相較於材料表面之親疏水性，PDA之表面修飾能夠顯著的增加光固化材料的生物相容性。
另一方面，為探討光起始劑對於材料生物相容性之影響，比較以紫外光起始聚合 (PSiO-UV)及大氣電漿聚合含有光起始劑(PSiO-APPJw/ PI)之樣本，以及利用大氣電漿聚合不含光起始劑 (PSiO-APPJw/o PI)之樣本，並以L¬-929老鼠纖維母細胞培養樣本一天及三天，探討其生物相容性。當細胞培養三天後，PSiO-UV、PSiO-APPJw/ PI以及PSiO-APPJw/o PI之細胞密度分別提升至355%、461%以及572%，結果指出，於PSiO-APPJw/o PI表面之細胞密度明顯高於含有光起始劑之樣本。
論文的第二部分，是利用Py作為前驅物，製備電漿聚合聚吡咯薄膜 (plasma-polymerized polypyrrole, ppPPy)，固定工作壓力為100 mTorr，分別改變施加功率及沉積時間，以探討電漿參數對薄膜特性之影響。由橢圓偏光儀量測薄膜厚度並計算沉積速率，結果顯示薄膜厚度會隨著沉積時間增加而呈線性上升，當施加功率由5 W增加至60 W時，沉積速率由7.99 nm/min增加至20.32 nm/min。水接觸角量測結果顯示，可於施加功率為10 W時，得到最低之水接觸為35.5°，而在施加功率為60 W時，得到之水接觸角為64.4°，在固定施加功率下，當沉積時間為30分鐘時，薄膜之水接觸角開始趨於定值，由結果得知，長時間沉積對於薄膜親疏水性無更顯著之影響。利用L-929老鼠纖維母細胞研究薄膜之生物相容性，並改變施加功率為10 W、40 W、及60 W，結果顯示於施加功率10 W及40 W下沉積之ppPPy薄膜，具有較好的生物相容性。另外，亦將碘摻雜於10 W及40 W下所製備之ppPPy，並以電化學方式分析其導電性質，結果顯示於10 W之ppPPy有較高的電流響應。統整以上分析結果，得知施加功率對薄膜性質有顯著之影響，並推測在低施加功率下能夠使高分子保有完整之結構，使薄膜在低施加功率下得到較親水且生物相容性較佳之性質。

The polymerization reactions of photo-curable polymers are initiated by a UV irradiation method, which involves the utilizations of photo-initiator to interact with monomers or oligomers. In this thesis, the biocompatibility of the photo-curable polymers was adjusted by using different methods. This thesis is composed of two parts: (I) the photo-curable materials were polymerized through UV irradiation or atmospheric pressure plasma jet (APPJ) techniques. In addition, for the photo-curable polymers polymerized by UV irradiation, two different methods were used to enhance the biocompatibility: (i) surface modification using polydopamine (PDA), and (ii) by argon (Ar) plasma surface modification.
The photo-curable precursor, PSiO-EOEA was polymerized by UV irradiation, and then modified with PDA or Ar plasma. For the Ar plasma treatments, PSiO-EOEA was scanned by APPJ for three or five times (PSiO-3N, PSiO-5N). The results showed that the surface wettability of PSiO-EOEA decreased from 101.8 ° to 20.7 ° and 12.6 ° after Ar plasma scanned for 3 and 5 times, respectively. In addition, PDA was coated on the surface of Ar plasma pretreated polymer (PSiO-5N-PDA) and the biocompatibility on the samples was investigated by lactate dehydrogenase (LDH) assay, based on cell culture of L-929 mouse fibroblasts on the samples. The results showed that the cell density on PSiO-5N and PSiO-5N-PDA increased to 112% and 260%, respectively. Therefore, it can be concluded that the PDA surface modification can significantly enhance the biocompatibility of PSiO-EOEA.
On the other hand, it is indicated that several reactive oxygen species (ROS) and reactive nitrogen species (RNS) could be generated by APPJ, which has potential to achieve the polymerization of photo-curable materials without adding photoinitiators (PI). Therefore, this thesis also try to use APPJ in the absence PI to polymerize the photo-curable materials to avoid the toxicity of PI. In this study, APPJ-assisted polymerization without PI (PSiO-APPJw/o-PI) was compared with UV irradiation (PSiO-UV) and APPJ polymerization with PI (PSiO-APPJw/-PI). Furthermore, the effects of PI on the biocompatibility of L-929 mouse fibroblast cells were studied. The results showed that the cell density of L-929 fibroblasts cultured onto PSiO-UV, PSiO-APPJw/-PI, and PSiO-APPJw/o-PI became 355%, 461%, and 572% after culturing for 3 days, respectively. It is suggested that even low concentration of PI can affect the biocompatibility of photo-curable polymers.
In the second part of this work, plasma-polymerized polypyrrole (ppPPy) thin films were prepared by a low-pressure plasma polymerization process. The effects of the applied power and deposition time on the characteristics of ppPPy thin films were studied. The film thickness and surface wettability were evaluated by ellipsometry and water contact angle measurements. The chemical composition and surface roughness were analyzed by ATR-FTIR and AFM, respectively. Furthermore, the biocompatibility and electrical conductivity of ppPPy films were studied with in vitro cell culture using L-929 mouse fibroblast cells and cyclic voltammetry, respectively. The surface wettability of ppPPy films demonstrated higher hydrophilicity at 10 W and the films exhibited higher biocompatibility at 10 W and 40 W. The results also showed that the applied power affected the film properties.

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