| Title: | The effects of ozone sterilization on the chemical and mechanical properties of 3D-printed biocompatible PMMA |
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| Authors: | ID Morosavljević, Ivan (Author)
ID Kozak, Dražan (Author)
ID Kosor, Tihomir (Author)
ID Morosavljević, Janko (Author)
ID Ferlič, Luka (Author)
ID Gubeljak, Nenad (Author) |
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| Files: |  micromachines-15-00472-v2.pdf (6,28 MB)
MD5: CFC75983E044F1ED8DCB0787BBD754A7
 https://www.mdpi.com/2072-666X/15/4/472
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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: | Since ozone is highly corrosive, it can substantially affect the mechanical and chemical properties of the materials; consequently, it could affect the applicability of those materials in medical applications. The effect of ozone sterilization on the chemical and mechanical properties of additively manufactured specimens of biocompatible poly(methyl-methacrylate) was observed. FDM 3D-printed specimens of biocompatible PMMA in groups of five were exposed to high concentrations of ozone generated by corona discharge for different durations and at different ozone concentrations inside an enclosed chamber with embedded and calibrated ozone, temperature, and humidity sensors. A novel approach using laser-induced fluorescence (LIF) and spark-discharge optical emission spectrometry (SD-OES) was used to determine an eventual change in the chemical composition of specimens. Mechanical properties were determined by testing the tensile strength and Young’s modulus. A calibrated digital microscope was used to observe the eventual degradation of material on the surface of the specimens. SD-OES and LIF analysis results do not show any detectable sterilizationcaused chemical degradation, and no substantial difference in mechanical properties was detected. There was no detectable surface degradation observed under the digital microscope. The results obtained suggest that ozone sterilization appears to be a suitable technique for sterilizing PMMA medical devices. |
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| Keywords: | ozone sterilization, poly(methyl-methacrylate) (PMMA), polymer oxidation, personalized medical device, environmentally friendly, fused deposition modeling (FDM) |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 14.02.2024 |
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| Article acceptance date: | 27.03.2024 |
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| Publication date: | 29.03.2024 |
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| Publisher: | Multidisciplinary Digital Publishing Institute (MDPI) |
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| Year of publishing: | 2024 |
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| Number of pages: | 16 str. |
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| Numbering: | Vol. 15, iss. 4, [article no.] 472 |
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| PID: | 20.500.12556/DKUM-94066  |
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| UDC: | 620.1:621.713.3 |
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| ISSN on article: | 2072-666X |
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| COBISS.SI-ID: | 191144195 |
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| DOI: | 10.3390/mi15040472 |
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| Copyright: | © 2024 by the authors |
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| Publication date in DKUM: | 30.07.2025 |
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| Views: | 155 |
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| Downloads: | 8 |
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| Metadata: |    |
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| Categories: | Misc.
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