首页> 外文期刊>RSC Advances >Instability and translocation through nanopores of DNA interacting with single-layer materials
【24h】

Instability and translocation through nanopores of DNA interacting with single-layer materials

机译:通过与单层材料相互作用的DNA纳米孔的不稳定性和易位

获取原文
获取原文并翻译 | 示例
           

摘要

In this study, we use classical applied mathematical modelling to employ the 6-12 Lennard-Jones potential function along with the continuous approximation to investigate the interaction energies between a double-stranded deoxyribonucleic acid (dsDNA) molecule and two-dimensional nanomaterials, namely graphene (GRA), hexagonal boron nitride (h-BN), molybdenum disulphide (MoS2), and tungsten disulphide (WS2). Assuming that the dsDNA molecule has a perpendicular distance Delta above the nano-sheet surface, we calculated the molecular interaction energy and determined the relation between the location of the minimum energy and Delta. We also investigated the interaction of a dsDNA molecule with the surface of each nano-sheet in the presence of a circular hole simulating a nanopore. The radius of the nanopore that results in the minimum energy was determined. Our results show that the adsorption energies of the dsDNA molecule with GRA, h-BN, MoS2, and WS(2)nano-sheets corresponding to the perpendicular distance Delta= 20 angstrom are approximately 70, 82, 28, and 26 (kcal mol(-1)), respectively, and we observed that the dsDNA molecule moves through nanopores of radii greater than 12.2 angstrom.
机译:在这项研究中,我们使用经典应用数学建模来采用6-12 Lennard-Jones潜在功能以及持续近似,以研究双链脱氧核糖核酸(DSDNA)分子和二维纳米材料之间的相互作用能量,即石墨烯(GRA),六边形氮化硼(H-BN),二硫化钼(MOS2)和钨二硫化物(WS2)。假设DSDNA分子具有纳米片表面上方的垂直距离δ,我们计算了分子相互作用能量,并确定了最小能量和δ的位置之间的关系。我们还在模拟纳米孔的圆孔存在下研究了DSDNA分子与每个纳米片的表面的相互作用。确定导致最小能量的纳米孔的半径。我们的结果表明,与垂直距离Delta = 20埃对应的GRA,H-BN,MOS2和WS(2)纳米片的DSDNA分子的吸附能量约为70,82,28和26(kcal mol (-1))分别观察到DSDNA分子通过大于12.2埃的半径的纳米孔移动。

著录项

  • 来源
    《RSC Advances》 |2020年第61期|共9页
  • 作者单位

    King Saud Univ Coll Sci Dept Math Riyadh 11451 Saudi Arabia;

    King Saud Univ Coll Sci Dept Math Riyadh 11451 Saudi Arabia;

    Al Imam Mohammad Ibn Saud Islamic Univ IMSIU Dept Math &

    Stat Riyadh Saudi Arabia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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