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Related Experiment Video

Updated: Nov 20, 2025

Fabrication of Biologically Derived Injectable Materials for Myocardial Tissue Engineering
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Biodegradable methacrylated casein for cardiac tissue engineering applications.

Sonali Sudhir Sali1, Maree L Gould1, Muhammad Qasim2

  • 1Centre for Bioengineering and Nanomedicine, Department of Food Science, University of Otago, Dunedin 9016, New Zealand. azam.ali@otago.ac.nz.

Journal of Materials Chemistry. B
|January 25, 2021
PubMed
Summary
This summary is machine-generated.

This study developed a novel biomaterial from casein for tissue engineering. The methacrylated casein scaffolds showed excellent cell viability and proliferation, highlighting potential for waste material valorization.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Polymer Chemistry

Background:

  • Casein, a protein rich in amino groups, offers surface functionalization for enhanced hydrophilicity and cell adhesion.
  • Investigating casein's potential for tissue engineering applications is crucial for developing advanced biomaterials.

Purpose of the Study:

  • To synthesize and characterize a novel biodegradable biomaterial from casein for tissue engineering.
  • To compare casein derived from skim milk and dissolved air flotation (DAF) technology.
  • To evaluate the cell compatibility and proliferation on the synthesized scaffolds.

Main Methods:

  • Casein was chemically modified with methacrylic anhydride (MA) and blended with polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP).
  • Porous scaffolds were fabricated with varying MA concentrations.
  • Fourier Transform Infrared Microscopy (FTIR), Proton Nuclear Magnetic Resonance (1H NMR), rheological analysis, and in vitro cell assays (Live/Dead, MTT) were employed.

Main Results:

  • Successful synthesis of methacrylated casein (CasMA) confirmed by FTIR and 1H NMR.
  • Rheological and morphological analysis indicated viscous behavior and columnar hollow tube-like microstructures.
  • In vitro assays demonstrated high cell viability and increased cell proliferation on the CasMA scaffolds.

Conclusions:

  • Methacrylated casein is a promising biomaterial for tissue engineering applications.
  • The study presents a viable method for utilizing waste DAF-casein as a value-added product.
  • Optimized casein modification enhances cell adhesion, proliferation, and biomaterial performance.