Effects of internal pressure and surface tension on the growth-induced wrinkling of mucosae.
Effects of internal pressure and surface tension on the growth-induced wrinkling of mucosae.
复制标题
DOI：
10.1016/j.jmbbm.2013.05.009
复制
发表时间：
2014
影响因子：
3.9
通讯作者：
Wei-Hua Xie;Bo Li;Yan-Ping Cao;Xi-Qiao Feng
中科院分区：
文献类型：
--
作者：
Wei-Hua Xie;Bo Li;Yan-Ping Cao;Xi-Qiao Feng
粘膜表面的皱纹对许多生物组织的生物学功能至关重要。在本文中，我们研究了由粘膜层和粘膜下层组成的圆柱管的不稳定性。重点研究了内压和表面张力对组织生长引起的表面起皱的临界条件和模数的影响。结果表明，内压对临界振型数有稳定作用，但对临界振型数基本没有影响。表面张力还可以稳定系统并减少表面图案的临界模式数。此外，粘膜层越薄，表面张力的影响越显著。这项工作可能有助于深入了解诸如呼吸道和食道等管状器官的表面皱纹和形态演变。
Surface wrinkling of mucosae is crucial for the biological functions of many living tissues. In this paper, we investigate the instability of a cylindrical tube consisting of a mucosal layer and a submucosal layer. Our attention is focused on the effects of internal pressure and surface tension on the critical condition and mode number of surface wrinkling induced by tissue growth. It is found that the internal pressure plays a stabilizing role but basically has no effect on the critical mode number. Surface tension also stabilizes the system and reduces the critical mode number of surface patterns. Besides, the thinner the mucosal layer, the more significant the effect of surface tension. This work may help gain insights into the surface wrinkling and morphological evolution of such tubular organs as airways and esophagi.