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International Journal of Biological Macromolecules
Article . 2025 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
https://doi.org/10.2139/ssrn.4...
Article . 2024 . Peer-reviewed
Data sources: Crossref
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3d-Printed Poly(Ethylene) Glycol Diacrylate (Pegda)-Chitosan-Nanohydroxyapatite Scaffolds: Structural Characterization and Cellular Response

Authors: Shannen Marcus, Ngau; Kean How, Cheah; Voon Loong, Wong; Poi Sim, Khiew; Siew Shee, Lim;

3d-Printed Poly(Ethylene) Glycol Diacrylate (Pegda)-Chitosan-Nanohydroxyapatite Scaffolds: Structural Characterization and Cellular Response

Abstract

Polymer-based scaffolds with bioactive materials offer great potential in bone tissue engineering. Polyethylene glycol diacrylate (PEGDA) scaffolds fabricated via liquid crystal display 3D printing technique lack inherent osteoconductivity. To improve such properties, chitosan of 10 and 20 wt% and nanohydroxyapatite (nHA) (3-10 wt%) were incorporated into PEGDA scaffolds. nHA, synthesized via wet chemical precipitation, had a particle size of 28 nm and exhibited low crystallinity, as confirmed by X-ray diffraction. PEGDA-chitosan-nHA scaffolds underwent post-curing and 70 % ethanol leaching treatment. The presence of chitosan and nHA in the composite scaffolds was confirmed by their characteristic peaks. TGA analyses further verified nHA content correlating to the intended amount. The scaffolds featured interconnected pores ranging from 2891 to 3382 μm and porosities between 35 and 56 %. The swelling percentage and compressive modulus were reported at ~71-93 % and 0.52-1.18 MPa, respectively. Notably, PEGDA-chitosan-nHA scaffolds showed enhanced in vitro efficacy than pure PEGDA scaffolds, by promoting better MG63 cell adhesion (p < 0.05), higher proliferation and alkaline phosphatase (ALP) activity, particularly in scaffolds with 20 wt% chitosan across all incubation periods in cell proliferation and early osteoblast differentiation studies. These findings suggest that PEGDA-chitosan-nHA scaffolds have promising potential for bone tissue engineering applications.

Keywords

Chitosan, Durapatite, Osteoblasts, Tissue Scaffolds, Tissue Engineering, Printing, Three-Dimensional, Cell Adhesion, Humans, Biocompatible Materials, Porosity, Polyethylene Glycols, Cell Proliferation, Cell Line

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Top 10%
Average
Average
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