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Related Experiment Video

Updated: Aug 30, 2025

Quantifying Three-Dimensional Cell Migration Within and Into Granular Hydrogel Biomaterials
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Quantifying Three-Dimensional Cell Migration Within and Into Granular Hydrogel Biomaterials

Published on: March 7, 2025

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Cell Response in Free-Packed Granular Systems.

Ana F Cunha1, André F V Matias2,3, Cristóvão S Dias2,3

  • 1Department of Chemistry, CICECO─Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.

ACS Applied Materials & Interfaces
|August 31, 2022
PubMed
Summary
This summary is machine-generated.

Cell adhesion and movement on microparticles depend on particle size. Smaller microparticles (14-20 μm) promote cell mobility and detachment, while larger ones (38-85 μm) support long-term cell adhesion and proliferation.

Keywords:
cell adhesioncell responsecell-mediated mobilitycomputational modelingfree-packinggranular system

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Investigating Mast Cell Secretory Granules; from Biosynthesis to Exocytosis
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Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Mechanobiology

Background:

  • Cell-extracellular communication influences physiological processes.
  • Understanding cell-material interactions is key for innovative applications.
  • Cell attachment, spreading, and movement are critical cellular behaviors.

Purpose of the Study:

  • To investigate the impact of microparticle diameter on cell adhesion, spreading, and movement.
  • To determine the minimum traction force required for cell-particle bond reinforcement.
  • To explore the potential for engineering cell-based applications.

Main Methods:

  • Experimental study of living adherent cells interacting with microparticle beds of varying diameters.
  • In silico hybrid particle-based modeling of time-dependent cell adhesion mechanisms.

Main Results:

  • Microparticles with diameters of 14-20 μm facilitate cell-mediated mobility and early detachment.
  • Microparticles ranging from 38 to 85 μm in diameter promote long-lasting cell adhesion and proliferation.
  • A minimum traction force is necessary for robust cell-particle bond reinforcement.

Conclusions:

  • Microparticle diameter is a critical factor in regulating cell adhesion and behavior.
  • Tailoring microparticle size can control cell-mediated mobility and adhesion duration.
  • The proposed in silico model offers insights for developing healthcare engineering platforms.