| Title: | Novel magnetic iron oxide-dextran sulphate nanocomposites as potential anticoagulants: Investigating interactions with blood components and assessing cytotoxicity |
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| Authors: | ID Plohl, Olivija (Author)
ID Fras Zemljič, Lidija (Author)
ID Vihar, Boštjan (Author)
ID Vesel, Alenka (Author)
ID Gyergyek, Sašo (Author)
ID Maver, Uroš (Author)
ID Ban, Irena (Author)
ID Bračič, Matej (Author) |
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| Files: |  1-s2.0-S0144861724006957-main-on-line-published.pdf (892,02 KB)
MD5: 12A2452F263CFF4D1A4C6F239150AEEF
 https://www.sciencedirect.com/science/article/pii/S0144861724006957?via%3Dihub
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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: | Examining the critical role of anticoagulants in medical practice, particularly their central function in preventing abnormal blood clotting, is of the utmost importance. However, the study of interactions between blood proteins and alternative anticoagulant nano-surfaces is still understood poorly. In this study, novel approach involving direct functionalisation of magnetic iron oxide nanoparticles (MNPs) as carriers with sulphated dextran (s-dext) is presented, with the aim of evaluating the potential of magnetically-responsive MNPs@s-dext as anticoagulants. The physicochemical characterisation of the synthesised MNPs@s-dext includes crystal structure analysis, morphology study, surface and electrokinetic properties, thermogravimetric analysis and magnetic properties` evaluation, which confirms the successful preparation of the nanocomposite with sulfonate groups. The anticoagulant potential of MNPs@s-dext was investigated using a standardised activated partial thromboplastin time (APTT) test and a modified APTT test with a quartz crystal microbalance with dissipation (QCM-D) which confirmed the anticoagulant effect. Time-resolved solid-liquid interactions between the MNPs@s-dext and model blood proteins bovine serum albumin and fibrinogen were also investigated, to gain insight into their hemocompatibility, and revealed protein-repellence of MNPs@s-dext against blood proteins. The study also addressed comprehensive cytotoxicity studies of prepared nanocomposites, and provided valuable insights into potential applicability of MNPs@s-dext as a promising magnetic anticoagulant in biomedical contexts. |
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| Keywords: | dextran sulphate, magnetic nanoparticles, blood protein interactions, clot formation, anticoagulants, cytotoxicity studies |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 30.05.2024 |
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| Article acceptance date: | 06.07.2024 |
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| Publication date: | 14.07.2024 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2024 |
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| Number of pages: | 13 str. |
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| Numbering: | Vol. 343, [article no.] 122469 |
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| PID: | 20.500.12556/DKUM-89595  |
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| UDC: | 677.46:620.3 |
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| ISSN on article: | 1879-1344 |
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| COBISS.SI-ID: | 202837507 |
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| DOI: | 10.1016/j.carbpol.2024.122469 |
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| Publication date in DKUM: | 25.07.2024 |
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| Views: | 323 |
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| Downloads: | 64 |
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| Metadata: |    |
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| Categories: | Misc.
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