- 期刊
奈米氧化鐵：新穎光學應用
Iron Oxide Nanoparticles: New Insight on Optical Applications
摘要
氧化鐵是地球上最多的金屬氧化物之一，科學家研究發現奈米化的氧化鐵表現獨特的磁特性，例如超順磁性superparamagnetism），生物醫學研究上，可作為磁導引劑、磁分離劑和磁振造影劑，然而，除了磁性特質的研究外，奈米氧化鐵亦展現許多有趣的光學特性，例如作為半導體材料，吸收特定波長的光產生光電化學裂解水特性，或是由無機化學角度切入的能階轉移，也就是近紅外光激發帶動氧化鐵中的鐵離子d軌域電子躍遷，產生光轉熱效應，本文整理近期文獻探討奈米氧化鐵的新穎光學研究予讀者，尤其是針對生物醫學與能源科學的應用介紹，希望能激起相關領域研究人員更多創意的想法。
並列摘要
Iron oxide is one of the common minerals on earth. Iron oxide materials would exhibit interesting property, e.g., superparamagnetism, which could be applied in magnetic guide application, magnetic separation, and magnetic resonance contrast agents, when their size reduced into nanoscale. In contrast to the magnetic characteristics, however, relatively little is known on the studies of their semiconductivity and optical property. Because the crystal structure included O-Fe bonds and Fe d-d interaction, iron oxide nanoparticles could be excited by the absorption of a specific wavelength light, leading to generate photon absorption and energy release processes and thus perform photoelectrochemical water splitting, nonlinear optical behavior, and photothermal effect to destruct tumor. In this paper, we introduce some recent works of iron oxide nanoparticleassisted biomedical sciences and energy applications, hoping to arouse researchers more creative ideas in related fields.