Improving Infection Resistance in Tissue Engineered Scaffolds for Tensile Applications Using Vancomycin-Embedded Melt Electrowritten Scaffolds
Article
Mathew, Asha, Devlin, Brenna L., Singh, Dilpreet, Paxton, Naomi C. and Woodruff, Maria A.. 2023. "Improving Infection Resistance in Tissue Engineered Scaffolds for Tensile Applications Using Vancomycin-Embedded Melt Electrowritten Scaffolds." Macromolecular Materials and Engineering. 308 (10). https://doi.org/10.1002/mame.202300168
| Article Title | Improving Infection Resistance in Tissue Engineered Scaffolds for Tensile Applications Using Vancomycin-Embedded Melt Electrowritten Scaffolds |
|---|---|
| ERA Journal ID | 1682 |
| Article Category | Article |
| Authors | Mathew, Asha, Devlin, Brenna L., Singh, Dilpreet, Paxton, Naomi C. and Woodruff, Maria A. |
| Journal Title | Macromolecular Materials and Engineering |
| Journal Citation | 308 (10) |
| Article Number | 2300168 |
| Number of Pages | 9 |
| Year | 2023 |
| Publisher | John Wiley & Sons |
| Place of Publication | Germany |
| ISSN | 1438-7492 |
| 1439-2054 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1002/mame.202300168 |
| Web Address (URL) | https://onlinelibrary.wiley.com/doi/10.1002/mame.202300168 |
| Abstract | It is important to consider mechanical, biological, and antibacterial properties of scaffolds when used for tissue engineering applications. This study presents a method to create complex “wavy” architecture polycaprolactone (PCL) scaffolds toward the development of tissue engineered ligament and tendon tissue substitutes, fabricated using melt electrowriting (MEW) and loaded with vancomycin (5, 10, and 25% w/w). Scaffolds are characterized for both mechanical and biological properties. Loading PCL scaffolds with vancomycin with modified solvent evaporation technique achieves a high loading efficiency of maximum 18% w/w and high encapsulation efficiency with over 89%. Vancomycin loaded PCL scaffolds with all three doses (5, 10, and 25% w/w) display antibacterial activity against Gram-positive Staphylococcus aureus (S. aureus) up to 14 days of release. Initial burst followed by a sustained release is observed on all three vancomycin loaded scaffolds for up to 28 days. Importantly, in addition to antibacterial properties, vancomycin-loaded PCL scaffolds also display improved mechanical properties compared to traditional crosshatch design MEW scaffolds and are noncytotoxic at all concentrations as demonstrated by live-dead staining, cell attachment and proliferation assays indicating its potential as an effective treatment option for tissue regeneration in rotator cuff injuries or other tissues undergoing tensile biomechanical loading. |
| Keywords | drug encapsulation and release; melt electrowriting; PCL; vancomycin |
| ANZSRC Field of Research 2020 | 400301. Biofabrication |
| Byline Affiliations | Queensland University of Technology |
| University of Oregon, United States |
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| Macro Materials Eng - 2023 - Mathew - Improving Infection Resistance in Tissue Engineered Scaffolds for Tensile.pdf | ||
| License: CC BY 4.0 | ||
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