首页> 美国卫生研究院文献>other >Dissipative Particle Dynamics Simulations for Phospholipid Membranes Based on a Four-To-One Coarse-Grained Mapping Scheme
【2h】

Dissipative Particle Dynamics Simulations for Phospholipid Membranes Based on a Four-To-One Coarse-Grained Mapping Scheme

机译:基于四对一粗颗粒映射方案的磷脂膜的耗散粒子动力学模拟

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

In this article, a new set of parameters compatible with the dissipative particle dynamics (DPD) force field is developed for phospholipids. The coarse-grained (CG) models of these molecules are constructed by mapping four heavy atoms and their attached hydrogen atoms to one bead. The beads are divided into types distinguished by charge type, polarizability, and hydrogen-bonding capacity. First, we derive the relationship between the DPD repulsive force and Flory-Huggins χ-parameters based on this four-to-one CG mapping scheme. Then, we optimize the DPD force parameters for phospholipids. The feasibility of this model is demonstrated by simulating the structural and thermodynamic properties of lipid bilayer membranes, including the membrane thickness, the area per lipid, the lipid tail orientation, the bending rigidity, the rupture behavior, and the potential of mean force for lipid flip-flop.
机译:在本文中,为磷脂开发了一组与耗散粒子动力学(DPD)力场兼容的新参数。这些分子的粗粒(CG)模型是通过将四个重原子及其连接的氢原子映射到一个珠子而构建的。珠粒按电荷类型,极化率和氢键结合能力分为不同类型。首先,基于这种四对一的CG映射方案,我们推导了DPD排斥力与Flory-Hugginsχ参数之间的关系。然后,我们优化磷脂的DPD力参数。通过模拟脂质双层膜的结构和热力学性质,包括膜的厚度,每个脂质的面积,脂质的尾部取向,弯曲刚度,断裂行为和平均作用力的潜力,证明了该模型的可行性。拖鞋。

著录项

  • 期刊名称 other
  • 作者单位
  • 年(卷),期 -1(11),5
  • 年度 -1
  • 页码 e0154568
  • 总页数 18
  • 原文格式 PDF
  • 正文语种
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号