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Two Methods for Decellularization of Plant Tissues for Tissue Engineering Applications
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Surface modified cellulose scaffolds for tissue engineering.

James C Courtenay1, Marcus A Johns1,2, Fernando Galembeck3,4

  • 11Centre for Sustainable Chemical Technologies, University of Bath, Claverton Down, Bath, BA2 7AY UK.

Cellulose (London, England)
|May 2, 2020
PubMed
Summary
This summary is machine-generated.

Positively charged bacterial cellulose enhances cell attachment for tissue engineering without needing proteins. This two-component system offers a novel biomaterial for cell and material applications.

Keywords:
Bacterial celluloseCell adhesionSurface modificationTissue engineering scaffolds

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Cell Biology

Background:

  • Cell attachment is crucial for tissue engineering.
  • Current methods often rely on protein ligands to mediate cell attachment to biomaterials.
  • Developing novel materials that support cell attachment without protein mediation is a key goal.

Purpose of the Study:

  • To investigate the potential of chemically modified bacterial cellulose for cell attachment and adhesion.
  • To create a two-component system for tissue engineering using cellulose and cells.
  • To determine if surface charge modification can enhance cell attachment without protein ligands.

Main Methods:

  • Bacterial cellulose sheets were chemically modified to introduce positive (cationic) or negative (anionic) charges.
  • Cell attachment and adhesion assays were performed on modified and unmodified cellulose surfaces.
  • Mechanical properties of the modified cellulose were assessed.
  • Cell morphology (area and aspect ratio) was analyzed.

Main Results:

  • Cationic cellulose significantly increased cell attachment by 70% compared to unmodified cellulose.
  • Anionic cellulose showed low cell attachment, similar to unmodified cellulose.
  • Minimal surface derivatization (3% degree of substitution) was sufficient for enhanced attachment.
  • Cell adhesion, mean cell area, and aspect ratio were highest on cationic surfaces.
  • Mechanical properties of the cellulose were not degraded by modification.

Conclusions:

  • Positively charged bacterial cellulose is a promising material for tissue engineering.
  • This material supports cell attachment and adhesion effectively without the need for mediating proteins.
  • The developed two-component system offers a novel approach for cell-material interactions in regenerative medicine.