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Fabrication of a Crystalline Nanocellulose Embedded Agarose Biomaterial Ink for Bone Marrow-Derived Mast Cell Culture
Published on: May 11, 2021
Universal method for protein bioconjugation with nanocellulose scaffolds for increased cell adhesion
Volodymyr Kuzmenko1, Sanna Sämfors, Daniel Hägg
1Department of Microtechnology and Nanoscience, Chalmers University of Technology, Kemivägen 9, SE-412 96 Gothenburg, Sweden; Wallenberg Wood Science Center, Chalmers University of Technology, Kemivägen 4, SE-412 96 Gothenburg, Sweden.
Surface modification of bacterial nanocellulose (BNC) with fibronectin and collagen type I significantly enhanced cell attachment and viability. This biomaterial development offers improved cell adhesion for tissue engineering applications.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Cell Biology
Background:
- Bacterial nanocellulose (BNC) is a biocompatible biomaterial with tunable architecture.
- BNC hydrogels exhibit poor cell attachment, limiting their use in regenerative medicine.
- Enhanced cell adhesion is critical for controlling cellular fate and tissue integration.
Purpose of the Study:
- To improve the cell attachment properties of bacterial nanocellulose scaffolds.
- To investigate the efficacy of protein conjugation for enhancing BNC biocompatibility.
- To establish a mild and efficient method for modifying BNC surfaces.
Main Methods:
- Surface modification of BNC scaffolds using 1-cyano-4-dimethylaminopyridinium (CDAP) tetrafluoroborate.
- Bioconjugation of fibronectin and collagen type I to the activated BNC surface.
- Assessment of cell adhesion and morphology using human umbilical vein endothelial cells and C3H10T1/2 cells.
Main Results:
- CDAP treatment effectively conjugated fibronectin and collagen type I to BNC.
- Surface-modified BNC showed significantly increased attachment of both cell types.
- Cell morphology indicated improved health and viability on the protein-coated BNC scaffolds.
Conclusions:
- CDAP activation provides a convenient and mild method for protein conjugation to BNC.
- Surface functionalization with extracellular proteins enhances BNC's potential for cell adhesion.
- This approach improves BNC's suitability as a scaffold for tissue engineering and regenerative medicine.
