Biocompatible silk step-index optical waveguides
Biocompatible silk step-index optical waveguides
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DOI：
10.1364/boe.6.004221
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发表时间：
2015-11-01
影响因子：
3.4
通讯作者：
Omenetto, Fiorenzo G.
中科院分区：
文献类型：
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作者：
Applegate, Matthew B.;Perotto, Giovanni;Omenetto, Fiorenzo G.
生物相容性光波导完全由丝素蛋白构成。将丝膜（n=1.54）包封在丝水凝胶（n=1.34）内以形成坚固且生物相容的波导。这种波导只使用生物和环境友好的材料，而不使用苛刻的溶剂。光通过直接结合玻璃光纤耦合到丝波导中。这些波导非常灵活，并且足够坚固，可以承受处理和操作。削减测量表明传播损耗约为2 dB/cm。研究人员发现，这种丝波导能够引导光穿过生物组织。(C)2015美国光学学会
Biocompatible optical waveguides were constructed entirely of silk fibroin. A silk film (n=1.54) was encapsulated within a silk hydrogel (n=1.34) to form a robust and biocompatible waveguide. Such waveguides were made using only biologically and environmentally friendly materials without the use of harsh solvents. Light was coupled into the silk waveguides by direct incorporation of a glass optical fiber. These waveguides are extremely flexible, and strong enough to survive handling and manipulation. Cutback measurements showed propagation losses of approximately 2 dB/cm. The silk waveguides were found to be capable of guiding light through biological tissue. (C) 2015 Optical Society of America