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請用此 Handle URI 來引用此文件: http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21374
完整後設資料紀錄
DC 欄位值語言
dc.contributor.advisor范士岡(Shih-Kang Fan)
dc.contributor.authorDing-Yang Tsaien
dc.contributor.author蔡定洋zh_TW
dc.date.accessioned2021-06-08T03:32:21Z-
dc.date.copyright2019-08-16
dc.date.issued2019
dc.date.submitted2019-08-11
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dc.identifier.urihttp://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21374-
dc.description.abstract本研究提出一種建構同時具有熱致動(Heat-driven)及光驅動(Light-driven)之可逆(Reversible)可編程(Programmable)的四維形狀變形(4D shape morphing)水膠(Hydrogel)之技術,電控微流體(Electromicrofluidic, EMF),通過此技術所建構的四維形狀變形水膠在眾多領域證明其獨特性能及優勢,例如生物醫學(Biomedical)、電子(Electronics)及航太(Astronautics)等。
運用電控微流體平臺,以介電濕潤(Electrowetting-on-dielectric, EWOD)與液體介電泳(Liquid dielectrophoresis, LDEP)驅動含有聚苯乙烯顆粒之水膠預聚物形成與設計之電極圖案相同的幾何外型,並以粒子介電泳(Particle dielectrophoresis, DEP)聚集水膠預聚物中散佈的聚苯乙烯顆粒排列成更微小尺度的電極圖案設計,隨後利用紫外光交聯水膠預聚物,由於聚苯乙烯顆粒在光交聯的過程中會吸收紫外光,使得紫外光在交聯水膠預聚物的過程中產生極大的衰弱現象,致使聚集有聚苯乙烯顆粒的區域在紫外光照射的方向有極高的交聯梯度;沒有聚苯乙烯顆粒的區域交聯梯度近乎為零,藉此控制水膠預聚物在交聯後之異向性(Anisotropy)膨脹及強度,隨後將圖案化聚苯乙烯顆粒之水膠浸至液體環境中,如水或細胞培養液等,以觸發異向性膨脹(Anisotropic swelling)的行為,使得從交聯後之二維平面結構觸發可逆自我摺疊(Reversible self-folding)以形成三維的摺紙(Origami)結構,並且通過設計的聚苯乙烯排列以創造可預測的四維形狀變形,此稱之為可逆可編程之四維形狀變形,以及通過調控液態環境的溫度,使水膠結構能夠在不同的三維結構間作變換,此稱之為熱致動。為了更快速的驅控三維結構間的變換以達成複雜的動作,例如抓取、爬行及翻滾等,利用聚苯乙烯顆粒會吸收紫外光的特性,通過照射紫外光來加熱水膠結構使其自我摺疊,稱之為光驅動,而此種水膠稱為熱與光驅動可逆可編程之四維形狀變形水膠。水膠材料為光交聯(Photocrosslink)之溫度敏感型水膠(Temperature-sensitive hydrogels),藉由提高環境溫度使水膠結構在曝光方向之交聯梯度反應出劇烈的膨脹率梯度,以達成可逆摺疊成任意彎曲角度之四維形狀變形水膠結構。本研究所使用的水膠材料為Poly(ethylene glycol) diacrylate (PEGDA),首先透過設計的圖案化電極,以頻率為1 kHz的電訊號操控PEGDA形成與設計之電極圖案相同的幾何外型,隨後透過更微小尺度的電極圖案,利用頻率為5 kHz的電訊號以介電泳力排列PEGDA中的聚苯乙烯顆粒。並且比較數個參數對於彎曲角度在不同溫度以及光致熱的影響。
zh_TW
dc.description.abstractThis study propose a novel method for creating a heat and light-driven reversible 4D shape morphing hydrogel, which demonstrates its unique properties and advantages in many fields, such as biomedical, electronics and astronautics.
Electromicrofluidic (EMF) platform was used to drive a hydrogel prepolymer containing polystyrene beads to form a hydrogel of patterned polystyrene beads by electrowetting-on-dielectric, liquid dielectrophoresis and particle dielectrophoresis. The polystyrene beads in the hydrogel prepolymer can control the cross-linking of hydrogel by absorbing or reflecting ultraviolet light. Thereby, Programmable swelling properties of hydrogel. The patterned polystyrene beads in the hydrogel immersed in a water or culture medium to trigger the behavior of anisotropic swelling, allowing the two-dimensional planar pattern to reversible self-folding into a three-dimensional origami structure. In order to rapid control the 4D shape morphing to achieve complex movements such as grasping, crawling and tumbling through photoheating. A heat and light-driven reversible 4D shape morphing that reversible folding at any angle is achieved by adjust ambient temperature, concentration and arrangement of the polystyrene beads. The photocrosslinkable temperature-sensitive hydrogel Poly(ethylene glycol) diacrylate (PEGDA) were employed on EMF platform.
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Previous issue date: 2019
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dc.description.tableofcontents中文摘要 i
Abstract iii
圖目錄 vi
表目錄 XIII
第一章 緒論 1
1-1 研究背景 1
1-2 文獻回顧 2
1-3 研究方法與目的 17
第二章 理論簡介 18
2-1 介電濕潤 18
2-2 介電泳 20
2-2-1 液體介電泳 20
2-2-2 粒子介電泳 22
2-3 電控微流體平臺之技術與應用 24
第三章 實驗製程、儀器與系統介紹 25
3-1 電控微流體平臺之製程 25
3-1-1 清洗玻璃基板 25
3-1-2 上板製程:圖案化正光阻 25
3-1-3 濕蝕刻導電層 26
3-1-4 旋塗介電層與疏水層 26
3-1-5 上板製程:旋塗疏水層 27
3-2 實驗系統 27
3-2-1 電控微流體平臺系統 27
3-2-2 電極圖案設計 28
3-2-3 水膠材料 31
3-2-4 電控微流體平臺架設 35
3-2-5 曝光系統 36
3-2-6 加熱系統 36
3-2-7 溫度檢測系統 37
第四章 實驗與結果討論 38
4-1 四維形狀變形水膠之可行性與可逆性 39
4-1-1.1 聚苯乙烯顆粒對於水膠進行四維形狀變形之影響 39
4-1-1.2 PEGDA之四維形狀變形 39
4-1-1.3 平行與垂直方向排列聚苯乙烯顆粒於PEGDA之四維形狀變形 46
4-1-1.4 GelMA之四維形狀變形 51
4-2 可編程的四維形狀變形 56
4-3 四維形狀變形水膠之致動方向影響 59
4-3-1.1 聚苯乙烯顆粒所處的位置對於水膠之致動方向影響 59
4-3-1.2 紫外光固化水膠結構的方向對於致動方向之影響 62
4-4 聚苯乙烯顆粒之顏色對於四維形狀變形之影響 66
4-5 聚苯乙烯顆粒之濃度對於四維形狀變形之影響 70
4-6 於PBS、細胞培養液及矽油環境進行四維形狀變形 75
4-7 異質水膠結構進行四維形狀變形並摺疊成六面體 77
4-8 光驅動異質水膠結構進行四維形狀變形 80
第五章 結論與未來展望 86
5-1 結論 86
5-2 未來展望 86
參考文獻 87
dc.language.isozh-TW
dc.title電控微流體平臺建構具顆粒之水膠用以熱與光驅動可逆可編程之四維形狀變形zh_TW
dc.titleConstruction of Microsphere-Based Hydrogel on Electromicrofluidic Platform for Heat and Light-Driven Reversible 4D Shape Morphingen
dc.typeThesis
dc.date.schoolyear107-2
dc.description.degree碩士
dc.contributor.oralexamcommittee楊燿州(Yao-Joe Yang),盧彥文(Yen-Wen Lu)
dc.subject.keyword熱致動,光驅動,四維形狀變形,水膠,電控微流體,可逆自我摺疊,異向性膨脹,溫度敏感型水膠,zh_TW
dc.subject.keywordheat-driven,light-driven,origami,electromicrofluidic,reversible self-folding,anisotropic swelling,temperature-sensitive hydrogel,en
dc.relation.page93
dc.identifier.doi10.6342/NTU201901264
dc.rights.note未授權
dc.date.accepted2019-08-12
dc.contributor.author-college工學院zh_TW
dc.contributor.author-dept機械工程學研究所zh_TW
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