title: Differences in the viscoelastic features of white and grey matter in tension.
abstract: Owing to its higher stiffness, white matter can absorb more energy than grey matter at strain rates of 0.025, 0.15 and 0.25 /s in tension. The reverse trend was observed at low strain rate (0.005 /s) due to the enhanced interactions between biomolecules in white matter, which may originate from the presence of strong polar groups and the stronger hydrogen bonding, as evidenced by differential scanning calorimetry and Fourier transform infrared spectrometer spectra.
authors.affiliation: State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China.
authors.forename: Run-Run
authors.initials: RR
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China.
authors.forename: Liang-Liang
authors.initials: LL
authors.lastname: Feng
authors.affiliation: Department of Anatomy, College of Basic Medical Sciences, Dalian Medical University, Dalian 116044, China.
authors.forename: Sheng-Bo
authors.initials: SB
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China. Electronic address: cwwu@dlut.edu.cn.
authors.forename: Cheng-Wei
authors.initials: CW
authors.lastname: Wu
mesh_terms: D000818:Animals; D002152:Calorimetry, Differential Scanning; D004285:Dogs; D004548:Elasticity; D066128:Gray Matter / Q000502:physiology*; D006860:Hydrogen Bonding; D017550:Spectroscopy, Fourier Transform Infrared; D013314:Stress, Mechanical; D014783:Viscosity; D066127:White Matter / Q000502:physiology*
keywords: Biomechanics; Brain tissue; Differential scanning calorimetry; Fourier transform infrared spectrometer spectra; Viscoelasticity