The mechanical response of hIAPP nanowires based on different bending direction simulations

J. I. Kim, M. Lee, I. Baek, G. Yoon, S. Na

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Amyloid proteins, implicated in numerous aging-related diseases, possess remarkable mechanical properties. Polymorphism leads to different arrangements of β sheets in amyloid fibrils, which changes the characteristics of the hydrogen bond network that determines their mechanical properties and structural characteristics. We performed bending simulations using molecular dynamics methods under constant-velocity conditions in different bending directions. Two different fibril structures, parallel/homo and parallel/hetero, of hIAPP amyloids were considered. Though the bending configuration influences the toughness of the material, our results indicate that the basic material behavior is affected by the β-sheet arrangement that is determined by the type of polymorphism in amyloid fibrils.

Original languageEnglish
Pages (from-to)18493-18500
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume16
Issue number34
DOIs
Publication statusPublished - 2014 Aug 6

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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