V. S. Filimonova, S. Y. Karelin, L. A. Krasnobaeva, S. V. Gusakova, E. V. Lisichko, N. N. Nikitenkov, V. S. Sypchenko
{"title":"On the Application of Oxynitride Thin Films in Biomedicine","authors":"V. S. Filimonova, S. Y. Karelin, L. A. Krasnobaeva, S. V. Gusakova, E. V. Lisichko, N. N. Nikitenkov, V. S. Sypchenko","doi":"10.1134/S1027451024702008","DOIUrl":null,"url":null,"abstract":"<p>The structure, morphology, and roughness of Ti–O–N coatings applied to stainless steel surfaces using reactive magnetron sputtering are investigated for use as biomedical stents. The deposition modes are analyzed with a negative bias applied to the substrate (–60 V), with no bias applied to the substrate, and with varying nitrogen-to-oxygen ratios in the working gas. The resulting coatings exhibited an anatase structure. Analysis by scanning electron microscopy shows a decrease in the grain size of the films with an increase in nitrogen concentration in the working gas when a negative bias (–60 V) is simultaneously applied. In vitro studies conducted on blood donors, involving blood collection followed by plasma separation from erythrocytes through centrifugation at a rate of 1–2 mL/min, demonstrate that the use of Ti–O–N-coated substrates (–60 V) decrease platelet levels and increase hematocrit values.</p>","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S161 - S165"},"PeriodicalIF":0.5000,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1027451024702008","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0
Abstract
The structure, morphology, and roughness of Ti–O–N coatings applied to stainless steel surfaces using reactive magnetron sputtering are investigated for use as biomedical stents. The deposition modes are analyzed with a negative bias applied to the substrate (–60 V), with no bias applied to the substrate, and with varying nitrogen-to-oxygen ratios in the working gas. The resulting coatings exhibited an anatase structure. Analysis by scanning electron microscopy shows a decrease in the grain size of the films with an increase in nitrogen concentration in the working gas when a negative bias (–60 V) is simultaneously applied. In vitro studies conducted on blood donors, involving blood collection followed by plasma separation from erythrocytes through centrifugation at a rate of 1–2 mL/min, demonstrate that the use of Ti–O–N-coated substrates (–60 V) decrease platelet levels and increase hematocrit values.
期刊介绍:
Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques publishes original articles on the topical problems of solid-state physics, materials science, experimental techniques, condensed media, nanostructures, surfaces of thin films, and phase boundaries: geometric and energetical structures of surfaces, the methods of computer simulations; physical and chemical properties and their changes upon radiation and other treatments; the methods of studies of films and surface layers of crystals (XRD, XPS, synchrotron radiation, neutron and electron diffraction, electron microscopic, scanning tunneling microscopic, atomic force microscopic studies, and other methods that provide data on the surfaces and thin films). Articles related to the methods and technics of structure studies are the focus of the journal. The journal accepts manuscripts of regular articles and reviews in English or Russian language from authors of all countries. All manuscripts are peer-reviewed.