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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. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining,...
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Amyloid Fibrils03:03

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Related Experiment Video

Updated: Feb 17, 2026

Characterization of pH-Dependent Reversible Self-Assembly of Amyloid Beta 1-40-Coated Gold Colloids
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Characterization of pH-Dependent Reversible Self-Assembly of Amyloid Beta 1-40-Coated Gold Colloids

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Modulating protein amyloid aggregation with nanomaterials.

Bo Wang1, Emily H Pilkington2, Yunxiang Sun1

  • 1Department of Physics and Astronomy, Clemson University, Clemson, SC, USA.

Environmental Science. Nano
|December 13, 2017
PubMed
Summary
This summary is machine-generated.

Nanoparticles (NPs) can alter protein amyloid aggregation, impacting diseases like Alzheimer's. Understanding these NP-protein interactions is crucial for developing safe nanomedicines against amyloid diseases.

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Area of Science:

  • Nanotechnology
  • Biomaterials Science
  • Molecular Biology

Background:

  • Nanoparticles (NPs) interact with biological systems, forming a protein corona that influences their function and toxicity.
  • Protein amyloid aggregation is implicated in neurodegenerative and metabolic diseases.
  • The precise mechanisms by which NPs influence protein aggregation remain incompletely understood.

Purpose of the Study:

  • To review the current research on nanoparticle-mediated protein amyloid aggregation.
  • To elucidate the mechanisms underlying NP-protein interactions in aggregation processes.
  • To provide a foundation for developing novel anti-amyloid nanomedicines.

Main Methods:

  • Literature review of studies investigating NP-protein interactions and amyloid aggregation.
  • Analysis of NP characteristics (composition, size, shape, surface chemistry) influencing aggregation.
  • Examination of direct and indirect mechanisms of NP-mediated aggregation.

Main Results:

  • Nanoparticles can either promote or inhibit protein amyloid aggregation through various mechanisms.
  • NP properties significantly dictate the outcome of NP-protein interactions.
  • Understanding these interactions is key to predicting NP behavior in vivo.

Conclusions:

  • Nanoparticle-mediated protein aggregation is a critical area in nanomedicine research.
  • Further investigation is needed to fully understand and harness these interactions for therapeutic development.
  • This knowledge is essential for designing safe and effective nanomedicines against amyloid-related diseases.