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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Biotherapy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Biotherapy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский биотерапевтический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9784</issn><issn publication-format="electronic">1726-9792</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1521</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2025-24-1-87-96</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Osteoconductivity and biocompatibility of beta-titanium alloy Ti-15Mo with biomimetic coating <italic>in vitro</italic></article-title><trans-title-group xml:lang="ru"><trans-title>Остеокондуктивность и биосовместимость бета-титанового сплава Ti-15Mo с биомиметическим покрытием <italic>in vitro</italic></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7246-9196</contrib-id><name-alternatives><name xml:lang="en"><surname>Gatina</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Гатина</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Svetlana Azatovna Gatina</p><p>32 Z. Validi St., Ufa 450076</p></bio><bio xml:lang="ru"><p>Светлана Азатовна Гатина</p><p>450076 Уфа, ул. З. Валиди, 32</p></bio><email>lana_gatina@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-8819-2947</contrib-id><name-alternatives><name xml:lang="en"><surname>Gaysina</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Гайсина</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Azaliya A. Gaysina</p><p>32 Z. Validi St., Ufa 450076</p></bio><bio xml:lang="ru"><p>450076 Уфа, ул. З. Валиди, 32</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4302-411X</contrib-id><name-alternatives><name xml:lang="en"><surname>Polyakova</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Полякова</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Veronika V. Polyakova</p><p>32 Z. Validi St., Ufa 450076</p></bio><bio xml:lang="ru"><p>450076 Уфа, ул. З. Валиди, 32</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8483-6408</contrib-id><name-alternatives><name xml:lang="en"><surname>Aubakirova</surname><given-names>V. R.</given-names></name><name xml:lang="ru"><surname>Аубакирова</surname><given-names>В. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Veta R. Aubakirova</p><p>32 Z. Validi St., Ufa 450076</p></bio><bio xml:lang="ru"><p>450076 Уфа, ул. З. Валиди, 32</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4370-6578</contrib-id><name-alternatives><name xml:lang="en"><surname>Anisimova</surname><given-names>N. Yu.</given-names></name><name xml:lang="ru"><surname>Анисимова</surname><given-names>Н. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Natalia Yu. Anisimova</p><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7503-8949</contrib-id><name-alternatives><name xml:lang="en"><surname>Enikeev</surname><given-names>N. А.</given-names></name><name xml:lang="ru"><surname>Еникеев</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nariman A. Enikeev</p><p>32 Z. Validi St., Ufa 450076</p></bio><bio xml:lang="ru"><p>450076 Уфа, ул. З. Валиди, 32</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ufa University of Science and Technology</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Уфимский университет науки и технологий»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-04-16" publication-format="electronic"><day>16</day><month>04</month><year>2025</year></pub-date><volume>24</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>87</fpage><lpage>96</lpage><history><date date-type="received" iso-8601-date="2025-04-16"><day>16</day><month>04</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-04-16"><day>16</day><month>04</month><year>2025</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://bioterapevt.abvpress.ru/jour/article/view/1521">https://bioterapevt.abvpress.ru/jour/article/view/1521</self-uri><abstract xml:lang="en"><p><bold>Background</bold>. One of the most important tasks for modern orthopedics is the development of materials for permanent (non-removable) implants with high mechanical properties on the one hand, and high biocompatibility and bioactivity on the other hand. In the present work we propose an approach to solving this problem consisting in the formation of ultrafine-grained (UFG) structure in low-modulus pseudo-β-titanium alloy Ti-15Mo and modification of its surface by plasma electrolytic oxidation (PEO).</p><p><bold>Aim.</bold> To evaluate the influence of structure and PEO modes on the peculiarities of Ti-15Mo alloy porous coating formation, its biocompatibility and adhesion activity of mesenchymal multipotent cells.</p><p><bold>Materials and methods</bold>. The material of the study was UFG pseudo β-titanium alloy Ti-15Mo with modified surface by PEO method. To investigate the biocompatibility of uncoated and PEO-coated samples, a comparative study of their hemolytic activity and cytotoxicity in vitro was carried out. To evaluate the osteoconductivity, the stimulation of cell adhesion by the alloy samples was studied.</p><p><bold>Results</bold>. Surface modification of Ti-15Mo alloy by PEO method resulted in the formation of coatings with developed pore system. Such topography of the coatings is close to the topography of the bone tissue that increases the area of the implant/bone contact, positively influences the osteointegration of the cells – osteoblasts and reduces the terms of the implant engraftment. It is shown that the samples from UFG alloy with PEO coatings have no toxic effect on blood cells and promote adhesion of mesenchymal multipotent cells – osteoblast precursors, which can be considered as an indicator of osteoconductivity of the modified titanium alloy surface.</p><p><bold>Conclusion</bold>. The obtained results testify to the prospects of this development of bioimplants creation for the purposes of traumatology, orthopedics and oncology.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Одной из важнейших задач для современной ортопедии является разработка материалов для постоянных (неудаляемых) имплантатов, обладающих высокими механическими свойствами, с одной стороны, и высокой биосовместимостью и биоактивностью – с другой. В настоящей работе предлагается подход к решению данной задачи, заключающийся в формировании ультрамелкозернистой (УМЗ) структуры в низкомодульном псевдо-β-титановом сплаве Ti-15Mo и модификации его поверхности плазменно-электролитическим оксидированием (ПЭО).</p><p><bold>Цель исследования</bold> – оценить влияние структуры и режимов ПЭО на особенности формирования пористого покрытия сплава Ti-15Mo, его биосовместимость и адгезионную активность мезенхимальных мультипотентных клеток.</p><p><bold>Материалы и методы</bold>. Материалом исследования являлся УМЗ псевдо-β-титановый сплав Ti-15Mo с модифицированной методом ПЭО поверхностью. Для исследования биосовместимости образцов без покрытия и с ПЭО-покрытием проводили сравнительное изучение их гемолитической активности и цитотоксичности in vitro. Для оценки остеокондуктивности изучали стимуляцию образцами сплавов клеточной адгезии.</p><p><bold>Результаты</bold>. Модификация поверхности сплава Ti-15Mo методом ПЭО привела к формированию покрытий с развитой системой пор. Такая топография покрытий близка к топографии костной ткани, что увеличивает площадь контакта «имплантат/кость», положительно влияет на остеоинтеграцию клеток-остеобластов и сокращает сроки приживаемости имплантата. Показано, что образцы из УМЗ-сплава с ПЭО-покрытиями не оказывают токсического эффекта на клетки крови и способствуют адгезии мезенхимальных мультипотентных клеток – предшественников остеобластов, что может быть расценено как показатель остеокондуктивности модифицированной поверхности сплава титана.</p><p><bold>Заключение.</bold> Полученные результаты свидетельствуют о перспективности данной разработки создания биоимплантатов для травматологии, ортопедии и онкологии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>osteoconductivity</kwd><kwd>biocompatibility</kwd><kwd>titanium alloy</kwd><kwd>biomimetic coating</kwd><kwd>ultrafine-grained structure</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>остеокондуктивность</kwd><kwd>биосовместимость</kwd><kwd>титановый сплав</kwd><kwd>биомиметическое покрытие</kwd><kwd>ультрамелкозернистая структура</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was supported by Russian Science Foundation project No. 23-69-10003 (https://rscf.ru/project/23-69-10003/)</funding-statement><funding-statement xml:lang="ru">Работа выполнена при поддержке проекта Российского научного фонда №23-69-10003 (https://rscf.ru/ project/23-69-10003/)</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Schwartz A., Farley K., Guild G., Bradbury T. 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