本研究主要是希望藉由效仿生物構造，利用簡單、低成本的方法，製作PDMS微型針狀結構陣列來捕捉水霧，有效率的收集可用水資源，以達成解決全球水資源問題之目的。
在現代氣候劇烈變遷的情況下，環境議題是我們必須警覺的問題，捕霧集水器便是因應而出的研究，而隨著水資源的缺乏，此類研究想必將扮演越來越重要的地位。此結構具有發展潛力，其主要特點為不耗電、設備便宜耐用，如能便宜、快速的製作微型針狀結構陣列並應用於捕霧集水器上，以及有效的提高捕霧集水器的收集效率，則有望解決多霧地區的水資源問題。
此微針陣列技術有別於使用傳統光微影技術(Photolithography)、電鑄技術(Electroforming)和蝕刻成型技術(Etching-molding)加工，本研究主要利用二氧化碳(CO2)雷射，對PMMA(Polymethylmethacrylate)材料加工出具有錐狀孔洞、可重複利用的模具，再以PDMS(Polydimethylsiloxane)高分子彈性材料進行翻模，製作出微型針狀結構陣列。具有省時及成本上的優勢，對於大量生產有良好幫助。
在捕霧集水器收集水霧的過程中，不僅針狀結構的『集水』會影響效率，如何有效的『傳輸』累積的液滴至集水區也是一個重要的課題。多數的捕霧集水器選擇以重力作為傳輸液滴的方式，將水分移動至下方的收集區，以維持裝置簡單方便的特性。然而，此時物體表面的親水性便十分重要，表面如具有親水性，雖然擁有易於捕捉空氣中水霧的特性，但表面與水的附著力卻會使的液滴無法有效的受重力引導至集水區。本研究使用濺鍍的方式，在PDMS微型針狀結構陣列上面沉積一層鋁金屬薄膜，能夠有效的降低水的附著力，使累積的液滴能夠輕鬆的流往集水區。
整體而言，本研究使用了CO2雷射為主的製程，成功製作出具有『集水』效率以及『傳輸』能力的針狀捕霧集水器，在低成本及快速製作的前提下也保證了一定的成品品質，在解決全球水資源缺乏的問題中具有一定的發展性。

This study is to emulate biological structure, using a simple, low-cost method to fabricate PDMS micro-cone arrays for fog collection. More efficiently, to collect available source of water can be used to achieve the purpose of solving global water issues. The CO2 laser is used to fabricate a high-aspect-ratio micro-cone PMMA master mold, instead of using other conventional time-consuming and expensive photolithography and etching processes. And then the PDMS micro-cone arrays are casted from the PMMA mold that can be cycled to replicate the pattern structures. The pattern on PMMA mold can easily be adjusted by changing CO2 laser power and scanning speed. The optimum PDMS micro-cone structure can be used for efficient fog collector. Also, a layer of aluminum metal film coated on PDMS micro-cone structure surface is applied to enhance the water droplets flow into the catchment area.

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