Bioinspired photonic structures by the reflector layer of firefly lantern for highly efficient chemiluminescence.
Bioinspired photonic structures by the reflector layer of firefly lantern for highly efficient chemiluminescence.
复制标题
萤火虫灯反射层的仿生光子结构可实现高效化学发光
DOI：
10.1038/srep12965
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发表时间：
2015-08-12
影响因子：
4.6
通讯作者：
Song Y
中科院分区：
文献类型：
--
作者：
Chen L;Shi X;Li M;Hu J;Sun S;Su B;Wen Y;Han D;Jiang L;Song Y
数千年来，萤火虫因其高效的生物发光而备受关注，这对基础研究和光子应用具有重要意义。然而，关于萤火虫灯的反射层（RL）的研究报道很少，RL是萤火虫灯发光的重要组成部分。在这里，我们展示了由随机中空颗粒组成的RL的详细微观结构，该颗粒在450 ~ 800 nm范围内具有高反射率。受萤火虫灯的启发，利用模拟RL结构的中空二氧化硅微粒，在可见光区域制造了具有高反射率的人造薄膜。此外，生物激发结构为化学发光系统提供了一个有效的RL，可以大大提高初始化学发光强度。这项工作不仅为萤火虫明亮的生物发光提供了新的认识，而且对设计用于治疗、检测和成像的光子材料具有重要意义。
Fireflies have drawn considerable attention for thousands of years due to their highly efficient bioluminescence, which is important for fundamental research and photonic applications. However, there are few reports on the reflector layer (RL) of firefly lantern, which contributes to the bright luminescence. Here we presented the detailed microstructure of the RL consisting of random hollow granules, which had high reflectance in the range from 450 nm to 800 nm. Inspired by the firefly lantern, artificial films with high reflectance in the visible region were fabricated using hollow silica microparticles mimicking the structure of the RL. Additionally, the bioinspired structures provided an efficient RL for the chemiluminescence system and could substantially enhance the initial chemiluminescence intensity. The work not only provides new insight into the bright bioluminescence of fireflies, but also is importance for the design of photonic materials for theranostics, detection, and imaging.