1
|
Restivo E, Peluso E, Bloise N, Bello GL, Bruni G, Giannaccari M, Raiteri R, Fassina L, Visai L. Surface Properties of a Biocompatible Thermoplastic Polyurethane and Its Anti-Adhesive Effect against E. coli and S. aureus. J Funct Biomater 2024; 15:24. [PMID: 38248691 PMCID: PMC10816734 DOI: 10.3390/jfb15010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Thermoplastic polyurethane (TPU) is a polymer used in a variety of fields, including medical applications. Here, we aimed to verify if the brush and bar coater deposition techniques did not alter TPU properties. The topography of the TPU-modified surfaces was studied via AFM demonstrating no significant differences between brush and bar coater-modified surfaces, compared to the un-modified TPU (TPU Film). The effect of the surfaces on planktonic bacteria, evaluated by MTT assay, demonstrated their anti-adhesive effect on E. coli, while the bar coater significantly reduced staphylococcal planktonic adhesion and both bacterial biofilms compared to other samples. Interestingly, Pearson's R coefficient analysis showed that Ra roughness and Haralick's correlation feature were trend predictors for planktonic bacterial cells adhesion. The surface adhesion property was evaluated against NIH-3T3 murine fibroblasts by MTT and against human fibrinogen and human platelet-rich plasma by ELISA and LDH assay, respectively. An indirect cytotoxicity experiment against NIH-3T3 confirmed the biocompatibility of the TPUs. Overall, the results indicated that the deposition techniques did not alter the antibacterial and anti-adhesive surface properties of modified TPU compared to un-modified TPU, nor its bio- and hemocompatibility, confirming the suitability of TPU brush and bar coater films in the biomedical and pharmaceutical fields.
Collapse
Affiliation(s)
- Elisa Restivo
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
| | - Emanuela Peluso
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
| | - Giovanni Lo Bello
- Department of Informatics, Bioengineering, Robotics and System Engineering—DIBRIS, University of Genoa, 16145 Genoa, Italy; (G.L.B.); (R.R.)
| | - Giovanna Bruni
- Department of Chemistry, Physical Chemistry Section, University of Pavia, 27100 Pavia, Italy;
| | - Marialaura Giannaccari
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
| | - Roberto Raiteri
- Department of Informatics, Bioengineering, Robotics and System Engineering—DIBRIS, University of Genoa, 16145 Genoa, Italy; (G.L.B.); (R.R.)
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
| |
Collapse
|