Filamentous Virus-based Assembly: Their Oriented Structures and Thermal Diffusivity.
Filamentous Virus-based Assembly: Their Oriented Structures and Thermal Diffusivity.
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DOI：
10.1038/s41598-018-23102-1
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发表时间：
2018-04-03
影响因子：
4.6
通讯作者：
Serizawa T
中科院分区：
文献类型：
--
作者：
Sawada T;Murata Y;Marubayashi H;Nojima S;Morikawa J;Serizawa T
有机聚合物通常被认为是热绝缘体，因为分子链的无定形排列减少了热传导声子的平均自由程。然而，最近的研究表明，具有高取向结构的单链聚合物可能比体聚合物具有更高的导热性，因为拉伸的聚合物链可以有效地通过聚合物共价键传导声子。在这里，我们证明了通过简单的流动诱导方法制备非共价病毒组装到高导热聚合物材料的可能性。采用简单的流动诱导取向法制备了由液晶丝状病毒非共价键基组件组成的高热扩散率薄膜。结构和热特性表明，膜中病毒的高度定向结构归因于高热扩散率。我们的研究结果将为基于生物分子的导热软材料开辟有吸引力的机会，即使这些组装是基于非共价键的。
Organic polymers are generally regarded as thermal insulators because amorphous arrangement of molecular chains reduces the mean free path of heat-conducting phonons. However, recent studies indicated that single chains of polymers with highly oriented structures could have high thermal conductivity than bulk polymers because stretched polymer chains effectively conduct phonons through polymeric covalent bonds. Here, we demonstrated the possibility of non-covalent virus assembly prepared by simple flow-induced methods toward high thermal conductive polymeric materials. Films with high thermal diffusivity composed of non-covalent bond-based assemblies of liquid crystalline filamentous viruses were prepared using a simple flow-induced orientation method. Structural and thermal characterization demonstrated that highly oriented structures of the viruses in the film were attributed to the high thermal diffusivity. Our results will open attractive opportunities for biomolecular-based thermally conductive soft materials even though the assemblies are based on non-covalent bonds.
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