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Antibody Actions

Antibody Actions

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.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
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Related Experiment Video

Updated: May 2, 2026

Detection of SARS-CoV-2 Neutralizing Antibodies using High-Throughput Fluorescent Imaging of Pseudovirus Infection

Detection of SARS-CoV-2 Neutralizing Antibodies using High-Throughput Fluorescent Imaging of Pseudovirus Infection

Published on: June 5, 2021

A Neutralizing Antibody-Conjugated Photothermal Nanoparticle Captures and Inactivates SARS-CoV-2.

Xiaolei Cai, Aleksander Prominski, Yiliang Lin

Biorxiv : the Preprint Server for Biology

|December 3, 2020

Summary

Researchers developed a novel photothermal nanoparticle therapy to capture and inactivate SARS-CoV-2, the virus causing COVID-19. This innovative approach offers a flexible platform for developing broad-spectrum antiviral treatments against multiple coronavirus strains.

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Area of Science:

Nanotechnology
Virology
Biomedical Engineering

Background:

The COVID-19 pandemic, caused by SARS-CoV-2, urgently requires effective therapeutic interventions.
Current treatments for COVID-19 lack complete safety and efficacy.
Developing novel strategies to neutralize and eliminate SARS-CoV-2 is critical.

Conclusions:

Antibody-conjugated photothermal nanoparticles represent a promising strategy for combating SARS-CoV-2.
This technology offers a flexible and adaptable platform for developing next-generation antiviral therapies.
The approach holds potential for broad protection against diverse SARS-CoV-2 strains and future viral threats.