| Title: | Dopamine-assisted modification of polypropylene film to attain hydrophilic mineral-rich surfaces |
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| Authors: | ID Ojstršek, Alenka (Author)
ID Chemelli, Angela (Author)
ID Osmić, Azra (Author)
ID Gorgieva, Selestina (Author) |
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| Files: |  Ojstrsek-2023-Dopamine-Assisted_Modification_o.pdf (3,72 MB)
MD5: CD9838627C202C20D48C165F7A9A9599
 https://doi.org/10.3390/polym15040902
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | The presented study focuses on the modification of polypropylene (PP) film with tetraethyl orthosilicate (TEOS) under heterogeneous conditions via polydopamine/polyethylene imine (PDA/PEI) chemistry using a facile dip-coating procedure to attain hydrophilic mineral-rich surfaces. Thus, the resulting PP-based films were further immersed in ion-rich simulated body fluid (SBF) to deposit Ca-based minerals onto the film’s surfaces efficiently. In addition, the chemical reaction mechanism on PP film was proposed, and mineralisation potential inspected by determination of functional groups of deposits, zeta potential, hydrophilicity and surface morphology/topography using Fourier transform infrared (FTIR) spectroscopy, streaming potential, water contact angle (WCA), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The obtained results show the improved wettability of samples on account of PDA inclusion (WCA was reduced from 103° for pure PP film to 28° for PDA-modified film), as well as the presence of functional groups, due to the PDA/PEI/TEOS surface functionalisation, increased the ability of minerals to nucleate on the PP film’s surface when it was exposed to an SBF medium. Moreover, the higher surface roughness due to the silica coatings influenced the enhanced anchoring and attachment of calcium phosphate (CaP), revealing the potential of such a facile approach to modify the chemically inert PP films, being of particular interest in different fields, including regenerative medicine. |
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| Keywords: | polypropylene film, dopamine-assisted modification, hydrophilicity, mineralization |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 20.01.2023 |
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| Article acceptance date: | 09.02.2023 |
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| Publication date: | 11.02.2023 |
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| Publisher: | MDPI |
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| Year of publishing: | 2023 |
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| Number of pages: | 14 str. |
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| Numbering: | Letn. 15, Št. 4, št. članka 902 |
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| PID: | 20.500.12556/DKUM-87396  |
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| UDC: | 677.017.86 |
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| ISSN on article: | 2073-4360 |
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| COBISS.SI-ID: | 141690115 |
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| DOI: | 10.3390/polym15040902 |
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| Publication date in DKUM: | 15.03.2024 |
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| Views: | 464 |
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| Downloads: | 17 |
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| Metadata: |    |
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| Categories: | Misc.
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