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Related Concept Videos

Antibody Structure01:10

Antibody Structure

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Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
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Antibody Actions01:26

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Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
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Updated: May 1, 2026

Monitoring Protein Adsorption with Solid-state Nanopores
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Tailoring Protein Adsorption at the Solid-Liquid Interface for Long-Term Superhemophobicity.

Huali Yu1, Dehui Wang1, Xijing Yang2

  • 1Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|May 15, 2025
PubMed
Summary
This summary is machine-generated.

Engineered heterogeneous superhemophobic surfaces prevent protein adsorption and thrombosis. This novel design maintains blood repellency for over 55 hours, showing promise for biomedical devices.

Keywords:
anti‐protein adsorptionhemocompatibilityheterogeneous surfacessuperhemophobicitywetting

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Surface Chemistry

Background:

  • Super-repellent surfaces with micro/nanoscale roughness can maintain blood in the Cassie-Baxter state, minimizing solid-liquid contact for biomedical use.
  • Conventional superhydrophobic surfaces face protein adsorption and thrombosis risk due to blood flow, transitioning to the Wenzel state.

Purpose of the Study:

  • To engineer a chemically heterogeneous superhemophobic surface inspired by Salvinia.
  • To prevent protein adsorption and maintain the Cassie-Baxter state for enhanced blood repellency.

Main Methods:

  • Incorporating hydrophilic molecules at solid-liquid contact areas based on surface topography and chemistry.
  • Creating chemically heterogeneous superhemophobic surfaces.

Main Results:

  • The heterogeneous surface effectively prevented protein adsorption and maintained the Cassie-Baxter state.
  • Blood-repellent time was over tenfold longer than conventional superhydrophobic surfaces.
  • In vivo studies in rabbits confirmed sustained hemocompatibility and thrombosis resistance for over 55 hours.

Conclusions:

  • The heterogeneous design provides extended resistance to biological fluids.
  • This approach is promising for developing blood-contacting devices, including membranes for extracorporeal membrane oxygenators.