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Related Concept Videos

Amyloid Fibrils03:03

Amyloid Fibrils

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Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Genetic Material01:20

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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
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Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
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Functional amyloid materials at surfaces/interfaces.

Chen Li1, Rongrong Qin, Ruirui Liu

  • 1Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Xi'an 710119, China. yangpeng@snnu.edu.cn.

Biomaterials Science
|February 14, 2018
PubMed
Summary
This summary is machine-generated.

Functional amyloid materials, protein-based nano-structures, show great promise in biotechnology. Their unique properties enable diverse applications in biomaterials and surface interactions.

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Supramolecular Chemistry

Background:

  • Functional amyloid materials are gaining attention due to nanotechnology advancements.
  • Amyloids are supramolecular assemblies of misfolded proteins or peptides forming β-sheet fibrils.
  • These materials possess inherent biocompatibility, phase behaviors, mechanical strength, and interfacial stability.

Purpose of the Study:

  • To review the emerging applications and potential of functional amyloid materials.
  • To highlight the versatile interactions of amyloids at surfaces and interfaces.
  • To underscore their significance in next-generation biotechnology and biomaterials.

Main Methods:

  • Literature review of functional amyloid materials.
  • Analysis of amyloid properties: biocompatibility, phase behavior, mechanical strength, interfacial stability.
  • Exploration of applications in bioadhesion, synthetic biology, and composites.

Main Results:

  • Amyloid fibrils exhibit remarkable chemical and biological functions.
  • Proteinaceous micro/nano-structures offer excellent biocompatibility and mechanical properties.
  • Versatile surface/interface interactions are observed, leading to widespread adoption.

Conclusions:

  • Functional amyloids demonstrate significant potential in advanced biotechnology.
  • Their unique properties make them valuable for developing novel biomaterials.
  • Applications span bioadhesion, synthetic biology, and composite materials.