1
|
Kryszak B, Szustakiewicz K, Dzienny P, Junka A, Paleczny J, Szymczyk-Ziółkowska P, Hoppe V, Grzymajło M, Antończak A. 'Cookies on a tray': Superselective hierarchical microstructured poly(l-lactide) surface as a decoy for cells. Mater Sci Eng C Mater Biol Appl 2022; 133:112648. [PMID: 35034812 DOI: 10.1016/j.msec.2022.112648] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/11/2021] [Accepted: 01/04/2022] [Indexed: 12/22/2022]
Abstract
In this research we developed a micro-sized hierarchical structures on a poly(l-lactide) (PLLA) surface. The obtained structures consist of round-shaped protrusions with a diameter of ~20 μm, a height of ~3 μm, and the distance between them ~30 μm. We explored the effect of structuring PLLA to design a non-cytotoxic material with increased roughness to encourage cells to settle on the surface. The PLLA films were prepared using the casting melt extrusion technique and were modified using ultra-short pulse irradiation - a femtosecond laser operating at λ = 1030 nm. A hierarchical microstructure was obtained resembling 'cookies on a tray'. The cellular response of fibro- and osteoblasts cell lines was investigated. The conducted research has shown that the laser-modified surface is more conducive to cell adhesion and growth (compared to unmodified surface) to such an extent that allows the formation of highly-selectively patterns consisting of living cells. In contrast to eukaryotic cells, the pathogenic bacteria Staphylococcus aureus covered modified and unmodified structures in an even, non-preferential manner. In turn, adhesion pattern of eukaryotic fungus Saccharomyces boulardii resembled that of fibro- and osteoblast cells rather than that of Staphylococcus. The discovered effect can be used for fabrication of personalized and smart implants in regenerative medicine.
Collapse
Affiliation(s)
- Bartłomiej Kryszak
- Department of Polymer Engineering and Technology, Faculty of Chemistry, Wrocław University of Science and Technology (WUST), Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Konrad Szustakiewicz
- Department of Polymer Engineering and Technology, Faculty of Chemistry, Wrocław University of Science and Technology (WUST), Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Paulina Dzienny
- Laser and Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystem, WUST, Poland
| | - Adam Junka
- Department of Pharmaceutical Microbiology and Parasitology, Wrocław Medical University, Borowska 211A, 50-556 Wrocław, Poland
| | - Justyna Paleczny
- Department of Pharmaceutical Microbiology and Parasitology, Wrocław Medical University, Borowska 211A, 50-556 Wrocław, Poland
| | | | - Viktoria Hoppe
- Center for Advanced Manufacturing Technologies, Faculty of Mechanical Engineering, WUST, Poland
| | - Michał Grzymajło
- Department of Polymer Engineering and Technology, Faculty of Chemistry, Wrocław University of Science and Technology (WUST), Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Arkadiusz Antończak
- Laser and Fiber Electronics Group, Faculty of Electronics, Photonics and Microsystem, WUST, Poland
| |
Collapse
|