Mechanics of trichocyte alpha-keratin fibers: Experiment, theory, and simulation
作者: Chia-Ching ChouEmiliano LeporePaola AntonaciNicola PugnoMarkus J. Buehler
作者单位: 1* Laboratory for Atomistic and Molecular Mechanics , Department of Civil and Environmental Engineering , Massachusetts Institute of Technology , Cambridge , MA 02139 , USA
2 Laboratory of Bio-inspired & Graphene Nanomechanics , Department of Civil , Environmental and Mechanical Engineering , University of Trento , 38123 Trento , Italy
3 Laboratory of Bio-Inspired Nanomechanics “Giuseppe Maria Pugno” , Department of Structural , Geotechnical and Building Engineering , Politecnico di Torino , 10129 Torino , Italy
4 § Laboratory of Bio-inspired & Graphene Nanomechanics , Department of Civil , Environmental and Mechanical Engineering , University of Trento , 38123 Trento , Italy; Center for Materials & Microsystems , Fondazione Bruno Kessler , 38123 Povo (Trento) , Italy; and School of Engineering & Materials Science , Queen Mary University of London , London E1 4NS , UK
5 Laboratory for Atomistic and Molecular Mechanics , Department of Civil and Environmental Engineering , Massachusetts Institute of Technology , Cambridge , MA 02139 , USA
刊名: Journal of Materials Research, 2015, Vol.30 (1), pp.26-35
来源数据库: Cambridge University Press Journal
DOI: 10.1557/jmr.2014.267
原始语种摘要: The mechanical behavior of human hair is determined by the interaction of trichocyte alpha keratin protein, matrix, and disulfide bonds crosslinking. Much effort has been spent to understand the link between the microscopic structure and the macroscopic fiber properties. Here we apply a mesoscopic coarse-grained model of the keratin macrofilament fibril combined with an analytical solution based on the concept of entropic hyperelasticity of the protein helix to investigate the link between the microscopic structure and the macroscopic properties of keratin fibers. The mesoscopic model provides good agreement with a wide range of experimental results. Based on the mesoscopic model, the predicted stress–strain curve of hair fibers agrees well with our own experimental measurements. The...
全文获取路径: Cambridge U Press  (合作)
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影响因子:1.713 (2012)

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关键词翻译
关键词翻译
  • simulation 模拟
  • trichocyte 刺丝胞
  • microfibril 微纤丝
  • disulfide 二硫化物
  • crosslinking 交联
  • modulus 系数
  • keratin 角朊
  • reinforce 加强
  • mesoscopic 可以直接看到的
  • structure 构造