Results 31 to 40 of about 127,967 (338)

A viscoelastic theory of turbulent fluid permeated with fibril magnetic fields [PDF]

, 2003
The solar convection zone is a turbulent plasma interacting with a magnetic field. Its magnetic field is often described as fibrillar since it consists of slender flux tubes occupying a small fraction of the total volume.
Fisher, G.H., Longcope, D.W., McLeish, T.C.B.   +2 more
core   +1 more source

Biomimetic nanoporous aerogels from branched aramid nanofibers combining high heat insulation and compressive strength

SmartMat, 2021
Materials combining efficient thermal insulation and high mechanical properties are needed in many areas of technology. Various aerogels provide a convenient design framework for thermal insulators, but they are often brittle.
Jun Li, Huaiyu Li, Liwei Xu, Lijun Wang, Zhen Hu, Li Liu, Yudong Huang, Nicholas A. Kotov   +7 more
doaj   +1 more source

Fibrillisation of hydrophobically modified amyloid peptide fragments in an organic solvent [PDF]

, 2007
The self-assembly of a hydrophobically modified fragment of the amyloid beta(A beta) peptide has been studied in methanol. The peptide FFKLVFF is based on A beta(16-20) extended at the N terminus by two phenylalanine residues.
Castelletto, Valeria, Hamley, Ian W., Krysmann, M.J.   +2 more
core   +1 more source

Two Novel Amyloid Proteins, RopA and RopB, from the Root Nodule Bacterium Rhizobium leguminosarum

Biomolecules, 2019
Amyloids represent protein fibrils with a highly ordered spatial structure, which not only cause dozens of incurable human and animal diseases but also play vital biological roles in Archaea, Bacteria, and Eukarya.
Anastasiia O. Kosolapova, Mikhail V. Belousov, Anna I. Sulatskaya, Maria E. Belousova, Maksim I. Sulatsky, Kirill S. Antonets, Kirill V. Volkov, Anna N. Lykholay, Oksana Y. Shtark, Ekaterina N. Vasileva, Vladimir A. Zhukov, Alexandra N. Ivanova, Pavel A. Zykin, Irina M. Kuznetsova, Konstantin K. Turoverov, Igor A. Tikhonovich, Anton A. Nizhnikov   +16 more
doaj   +1 more source

Enhancing Mechanical and Antimicrobial Properties of Dialdehyde Cellulose–Silver Nanoparticle Composites through Ammoniated Nanocellulose Modification

Molecules
Given the widespread prevalence of viruses, there is an escalating demand for antimicrobial composites. Although the composite of dialdehyde cellulose and silver nanoparticles (DAC@Ag1) exhibits excellent antibacterial properties, its weak mechanical ...
Jinsong Zeng, Chen Wu, Pengfei Li, Jinpeng Li, Bin Wang, Jun Xu, Wenhua Gao, Kefu Chen   +7 more
doaj   +1 more source

Modulation Effects of Fe³⁺, Zn²⁺, and Cu²⁺ Ions on the Amyloid Fibrillation of α-Synuclein: Insights from a FTIR Investigation

Molecules, 2022
Amyloid fibrillation of α-synuclein is implicated in the pathogenesis of Parkinson’s disease and heavy metal ions such as Fe3+, Zn2+, and Cu2+ are known to be involved in the process.
Yan Li, Yang Yu, Gang Ma
doaj   +1 more source

Electromechanical Imaging of Biological Systems with Sub-10 nm Resolution [PDF]

, 2005
Electromechanical imaging of tooth dentin and enamel has been performed with sub-10 nm resolution using piezoresponse force microscopy. Characteristic piezoelectric domain size and local protein fiber ordering in dentin have been determined. The shape of
A. Gruverman, B. J. Rodriguez, Bazhenov V. A., S. Jesse, Sergei V. Kalinin, T. Thundat   +5 more
core   +3 more sources

Cryo-EM structure of alpha-synuclein fibrils

eLife, 2018
Parkinson’s disease is a progressive neuropathological disorder that belongs to the class of synucleinopathies, in which the protein alpha-synuclein is found at abnormally high concentrations in affected neurons. Its hallmark are intracellular inclusions
Ricardo Guerrero-Ferreira, Nicholas MI Taylor, Daniel Mona, Philippe Ringler, Matthias E Lauer, Roland Riek, Markus Britschgi, Henning Stahlberg   +7 more
doaj   +1 more source

Probing the Mechanisms of Fibril Formation Using Lattice Models

, 2008
Using exhaustive Monte Carlo simulations we study the kinetics and mechanism of fibril formation using lattice models as a function of temperature and the number of chains.
D. K. Klimov, D. Thirumalai, J. E. Straub, Mai Suan Li, Thirumalai D.   +4 more
core   +2 more sources

Polymorphic Aβ42 fibrils adopt similar secondary structure but differ in cross-strand side chain stacking interactions within the same β-sheet. [PDF]

, 2020
Formation of polymorphic amyloid fibrils is a common feature in neurodegenerative diseases involving protein aggregation. In Alzheimer's disease, different fibril structures may be associated with different clinical sub-types.
Duo, Lan, Guo, Zhefeng, Hsu, Frederick, Lee, Yoon Kyung, Wang, Hongsu, Xue, Christine   +5 more
core   +1 more source