本論文主要研究在不藉由任何模板以及晶種粒子之情況下，於溶液中進行氧化還原反應合成出大量單晶、具有堆疊花瓣立體結構且近似六角形之奈米結構。此種銀奈米粒子之穩定性良好，可維持此種立體結構超過一個月;此外，也致力於研究利用生物可分解且天然的一般用紙合成出非等向之金奈米結構。
藉由UV-Visible 、SEM與TEM觀察奈米結構之形狀及尺寸; XRD進行奈米結構晶相之分析以及利用XPS進行表面基團之鑑定；並利用塗佈Rhodamine6G以及Melamine於奈米粒子之表面，進行表面增強拉曼散射效應之分析。
此研究採用一種新穎的方式進行非等向奈米金屬結構之合成，並可由表面增強拉曼散射之分析結果可得知，因非等向之形狀所具有特殊之光學性質於未來應用上極具有潛力。

In this study, we synthesized metal nanostructures with novel approaches. A unique flower-like silver nanostructures have been synthesized with a simple solution galvanic reaction without any templates or seeds. The nanostructures, which are single crystalline truncate-hexagonal shape with multi-layers of petals, exhibiting high yield and uniform size. These nanostructures also exhibited high stability upon the fact that the structures can be kept intact even after 1 month of storage. On the other hand, paper substrate, a biodegradable and cost efficient material was used to synthesize anisotropic gold nanostructures.
To characterize the as-synthesized silver and gold nanostructures, analytical methods such as UV-Visible, SEM, TEM, XRD, and XPS have been carried out. Furthermore, large surface-enhanced Raman scattering (SERS) effect was also observed upon utilizing the nanostructures by using Rhodamine 6G (R6G) and melamine as probe molecules. Our study suggested novel approaches to synthesis large quantity of metal anisotropic nanostructures with unique optical properties that can be used for further applications.

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