Comparison of the influence of 45s5 and Cu-containing 45s5 bioactive glass (BG) on the biological properties of novel Polyhydroxyalkanoate (PHA)/BG composites

Schuhladen K, Lukasiewicz B, Basnett P, Roy I, Boccaccini AR (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Materials MDPI

Book Volume: 13

Article Number: 2607

Journal Issue: 11

DOI: 10.3390/ma13112607

Abstract

Polyhydroxyalkanoates (PHAs), due to their biodegradable and biocompatible nature and their ability to be formed in complex structures, are excellent candidates for fabricating scaffolds used in tissue engineering. By introducing inorganic compounds, such as bioactive glasses (BGs), the bioactive properties of PHAs can be further improved. In addition to their outstanding bioactivity, BGs can be additionally doped with biological ions, which in turn extend the functionality of the BG-PHA composite. Here, different PHAs were combined with 45S5 BG, which was additionally doped with copper in order to introduce antibacterial and angiogenic properties. The resulting composite was used to produce scaffolds by the salt leaching technique. By performing indirect cell biology tests using stromal cells, a dose-depending effect of the dissolution products released from the BG-PHA scaffolds could be found. In low concentrations, no toxic effect was found. Moreover, in higher concentrations, a minor reduction of cell viability combined with a major increase in VEGF release was measured. This result indicates that the fabricated composite scaffolds are suitable candidates for applications in soft and hard tissue engineering. However, more in-depth studies are necessary to fully understand the release kinetics and the resulting long-term effects of the BG-PHA composites.

Authors with CRIS profile

Katharina Schuhladen Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

University of Westminster GB United Kingdom (GB) University of Sheffield GB United Kingdom (GB)

How to cite

APA:

Schuhladen, K., Lukasiewicz, B., Basnett, P., Roy, I., & Boccaccini, A.R. (2020). Comparison of the influence of 45s5 and Cu-containing 45s5 bioactive glass (BG) on the biological properties of novel Polyhydroxyalkanoate (PHA)/BG composites. Materials, 13(11). https://doi.org/10.3390/ma13112607

MLA:

Schuhladen, Katharina, et al. "Comparison of the influence of 45s5 and Cu-containing 45s5 bioactive glass (BG) on the biological properties of novel Polyhydroxyalkanoate (PHA)/BG composites." Materials 13.11 (2020).

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