Myelin Sheath as a Dielectric Waveguide for Signal Propagation in the Mid-Infrared to Terahertz Spectral Range
文献类型：期刊论文
| 作者 | Liu, GZ; Chang, C; Qiao, Z; Wu, KJ; Zhu, Z; Cui, GQ; Peng, WY; Tang, YZ; Li, J; Fan, CH |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2019 |
| 卷号 | 29期号:7页码:— |
| 关键词 | DNA METHYLATION MICROSPECTROSCOPY AXONS |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.201807862 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The myelin sheath enables dramatic speed enhancement for signal propagation in nerves. In this work, myelinated nerve structure is experimentally and theoretically studied using synchrotron-radiation-based Fourier-transform infrared microspectroscopy. It is found that, with a certain mid-infrared to terahertz spectral range, the myelin sheath possesses a approximate to 2-fold higher refraction index compared to the outer medium or the inner axon, suggesting that myelin can serve as an infrared dielectric waveguide. By calculating the correlation between the material characteristics of myelin and the radical energy distribution in myelinated nerves, it is demonstrated that the sheath, with a normal thickness (approximate to 2 mu m) and dielectric constant in nature, can confine the infrared field energy within the sheath and enable the propagation of an infrared signal at the millimeter scale without dramatic energy loss. The energy of signal propagation is supplied and amplified when crossing the nodes of Ranvier via periodic relay. These findings provide the first model for explaining the mechanism of infrared and terahertz neurotransmission through myelinated nerves, which may promote the development of biological-tissue label-free detection, biomaterial-based sensors, neural information, and noninvasive brain-machine interfaces. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31723]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Shanghai Sci & Technol, Sch Opt Elect Comp Engn, Shanghai 200093, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China 3.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China; 4.Natl Innovat Inst Def Technol, Adv Interdisciplinary Technol Res Ctr, Beijing 100071, Peoples R China; 5.Xi An Jiao Tong Univ, Minist Educ, Key Lab Phys Elect & Devices, Xian 7100049, Shaanxi, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu, GZ,Chang, C,Qiao, Z,et al. Myelin Sheath as a Dielectric Waveguide for Signal Propagation in the Mid-Infrared to Terahertz Spectral Range[J]. ADVANCED FUNCTIONAL MATERIALS,2019,29(7):—. |
| APA | Liu, GZ.,Chang, C.,Qiao, Z.,Wu, KJ.,Zhu, Z.,...&Fan, CH.(2019).Myelin Sheath as a Dielectric Waveguide for Signal Propagation in the Mid-Infrared to Terahertz Spectral Range.ADVANCED FUNCTIONAL MATERIALS,29(7),—. |
| MLA | Liu, GZ,et al."Myelin Sheath as a Dielectric Waveguide for Signal Propagation in the Mid-Infrared to Terahertz Spectral Range".ADVANCED FUNCTIONAL MATERIALS 29.7(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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