Počet záznamů: 1
Interfaces between Cranial Bone and AISI 304 Steel after Long-Term Implantation: A Case Study of Cranial Screws
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SYSNO ASEP 0587472 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Interfaces between Cranial Bone and AISI 304 Steel after Long-Term Implantation: A Case Study of Cranial Screws Tvůrce(i) Luptáková, Natália (UFM-A) RID, ORCID
Dlouhý, V. (CZ)
Sobola, Dinara (UFM-A) ORCID, RID
Fintová, Stanislava (UFM-A) ORCID
Weiser, Adam (UFM-A) ORCID
Beneš, V. (CZ)
Dlouhý, Antonín (UFM-A) RID, ORCIDCelkový počet autorů 7 Zdroj.dok. ACS Biomaterials Science & Engineering. - : American Chemical Society - ISSN 2373-9878
Roč. 10, č. 7 (2024), s. 4297-4310Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova iron transport ; corrosion ; ions ; surface ; cells ; visualization ; arthroplasty ; osteoclasts ; transferrin ; mechanisms ; stainless steel AISI 304 ; implant ; biocorrosion ; peri-implant bone ; remodelling Vědní obor RIV JG - Hutnictví, kovové materiály Obor OECD Materials engineering CEP GA20-11321S GA ČR - Grantová agentura ČR NU20-08-00149 GA MZd - Ministerstvo zdravotnictví EH22_008/0004634 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Výzkumná infrastruktura CzechNanoLab - 90110 - Vysoké učení technické v Brně Způsob publikování Open access Institucionální podpora UFM-A - RVO:68081723 UT WOS 001252053300001 EID SCOPUS 85196658360 DOI https://doi.org/10.1021/acsbiomaterials.4c00309 Anotace Interfaces between AISI 304 stainless steel screws and cranial bone were investigated after long-term implantation lasting for 42 years. Samples containing the interface regions were analyzed using state-of-the-art analytical techniques including secondary ion mass, Fourier-transform infrared, Raman, and X-ray photoelectron spectroscopies. Local samples for scanning transmission electron microscopy were cut from the interface regions using the focused ion beam technique. A chemical composition across the interface was recorded in length scales covering micrometric and nanometric resolutions and relevant differences were found between peri-implant and the distant cranial bone, indicating generally younger bone tissue in the peri-implant area. Furthermore, the energy dispersive spectroscopy revealed an 80 nm thick steel surface layer enriched by oxygen suggesting that the AISI 304 material undergoes a corrosion attack. The attack is associated with transport of metallic ions, namely, ferrous and ferric iron, into the bone layer adjacent to the implant. The results comply with an anticipated interplay between released iron ions and osteoclast proliferation. The interplay gives rise to an autocatalytic process in which the iron ions stimulate the osteoclast activity while a formation of fresh bone resorption sites boosts the corrosion process through interactions between acidic osteoclast extracellular compartments and the implant surface. The autocatalytic process thus may account for an accelerated turnover of the peri-implant bone. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2025 Elektronická adresa https://pubs.acs.org/doi/10.1021/acsbiomaterials.4c00309
Počet záznamů: 1