以仿生結構製作抗紫外線之生物分解性透明薄膜

一般眼鏡或隱形眼鏡若要達到抗紫外線功能，通常都是以添加紫外線吸收劑為主。而隨著紫外線劑量的累積，除了容易使鏡片老化或降解，進而降低其抗紫外線之能力。本論文透過仿生學的思考，利用昆蟲外表奈米陣列結構能反射出特定光波長的概念來製作無需染料添加之抗紫外線生物分解性透明薄膜。利用Bragg-Snell's Law推導出能反射特定紫外光波長所需晶體陣列之粒徑大小後，再以無乳化方式聚合出所需之聚苯乙烯奈米球。隨後再利用反覆浸拉沉積的方式，使聚苯乙烯奈米球排列成多層的蛋白石陣列。再以生物相容性良好的改質絲素蛋白灌注於蛋白石周邊的縫隙，經溶劑去除蛋白石陣列後，即可獲得具抗紫外線功能的生物分解性透明薄膜。

關鍵字

抗紫外線；仿生學；蠶絲絲素蛋白；蛋白石；反蛋白石

並列摘要

Most of the glasses and contact lenses which resist achieving ultraviolet usually by adding UV absorbing agent. However, the lens aging and degradation still occurred after a long time of ultraviolet exposure. In this study, a free-UV absorbing anti-ultraviolet biodegradable transparent film were prepared from the bioinspired nano array structure of the surface layer of insects which could reflect specific wavelength of light. The desired pore size to reflect the specific wavelength could be calculated from the Bragg-Snell's Law. Polystyrene (PS) nanosphere were synthesized by emulsifier-free emulsion polymerization, and different layers of opal array of the PS nanosphere were assembled by the Langmuir-Blodgett deposition method. Pouring the modified silk fibroin (SF) into the voids of the PS opal array, and removing the enclosed opal array from the SF surrounded PS array by solvent, then an anti-ultraviolet biodegradable transparent film with inverse opal structure was obtained.

並列關鍵字

Anti-ultraviolet ； bionic ； silk fibroin (SF) ； opal ； inverse opal

參考文獻

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以仿生結構製作抗紫外線之生物分解性透明薄膜

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