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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vtio</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник трансплантологии и искусственных органов</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Transplantology and Artificial Organs</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1995-1191</issn><publisher><publisher-name>Academician V.I.Shumakov National Medical Research Center of Transplantology and Artificial Organs", Ministry of Health of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15825/1995-1191-2014-3-109-116</article-id><article-id custom-type="elpub" pub-id-type="custom">vtio-453</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Регенеративная медицина и клеточные технологии</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Regenerative Medicine and Cell Technologies</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ НАНО- И МИКРОСТРУКТУРЫ БИОМАТЕРИАЛОВ ДЛЯ РЕГЕНЕРАТИВНОЙ МЕДИЦИНЫ МЕТОДОМ СКАНИРУЮЩЕЙ ЗОНДОВОЙ НАНОТОМОГРАФИИ</article-title><trans-title-group xml:lang="en"><trans-title>INVESTIGATION OF NANO- AND MICROSTRUCTURE OF BIOMATERIALS FOR REGENERATIVE MEDICINE BY METHOD OF SCANNING PROBE NANOTOMOGRAPHY</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефимов</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Efimov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к. ф.-м. н., старший научный сотрудник лаборатории бионанотехнологий ФГБУ «Федеральный научный центр трансплантологии и искусственных органов им. ак. В.И. Шумакова» Минздрава России, Москва, Российская Федерация</p></bio><bio xml:lang="en"><p>Senior Research Fellow Laboratory of Bionanotechnology V.I. Shumakov Federal Research Center of Transplantology and Artifi cial Organs, Ministry of Healthcare of the Russian Federation, Moscow, Russian Federation</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агапов</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Agapov</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д. б. н., профессор, заведующий лабораторией бионанотехнологий того же центра</p></bio><bio xml:lang="en"><p>Professor, head of the laboratory of Bionanotechnology at the same center</p></bio><email xlink:type="simple">igor_agapov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Лаборатория бионанотехнологий ФГБУ «Федеральный научный центр трансплантологии и искусственных органов им. академика В.И. Шумакова» Минздрава России, Москва, Российская Федерация<country>Россия</country></aff><aff xml:lang="en">Laboratory of Bionanotechnology, V.I. Shumakov Federal Research Center of Transplantology and Artifi cial Organs, Ministry of Healthcare of the Russian Federation, Moscow, Russian Federation<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>24</day><month>09</month><year>2014</year></pub-date><volume>16</volume><issue>3</issue><fpage>109</fpage><lpage>116</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ефимов А.Е., Агапов И.И., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Ефимов А.Е., Агапов И.И.</copyright-holder><copyright-holder xml:lang="en">Efimov A.E., Agapov I.I.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://journal.transpl.ru/vtio/article/view/453">https://journal.transpl.ru/vtio/article/view/453</self-uri><abstract><sec><title>Цель</title><p>Цель. Провести исследование трехмерной микро- и наноструктуры пористых биосовместимых матриксов и выполнить количественный анализ наномасштабной пористости.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Трехмерные пористые матриксы из высокоочищенного спидроина rS1/9 (рекомбинантного аналога белка паутины) были получены методом выщелачивания. Размер макропор полученных трехмерных матриксов составил от 200 до 400 мкм. Изучение трехмерной структуры матриксов производилось методом сканирующей зондовой нанотомографии при помощи экспериментальной установки, объединяющей ультрамикротом и сканирующий зондовый микроскоп.</p></sec><sec><title>Результаты</title><p>Результаты. Получена трехмерная нанотомографическая реконструкция структуры стенки макропоры матрикса. Установлено, что в объеме стенок макропор исследуемых матриксов формируется трехмерная сеть сообщающихся пор и каналов с размерами от 20 до 700 нм. Средний диаметр пор составляет 150 нм. Объемный коэффициент пористости стенок макропор составляет 22%, при этом объемная доля пор, взаимосвязанных между собой и соединяющихся в кластеры, составляет порядка 20% от объема всех пор.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные в результате исследования количественные характеристики пористой микро- и наноструктуры матриксов показывают заметную степень наномасштабной пористости и проницаемости стенок макропор, что коррелирует с высокой эффективностью регенерации тканей на подобных матриксах при их имплантации in vivo. Использование метода сканирующей зондовой нанотомографии для анализа характеристик и топологии систем микро-и нанопор позволяет повысить эффективность разработок по созданию новых биосовместимых и биодеградируемых материалов с заданными морфологическими, физико-химическими и биологическими характеристиками.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To perform a study of three-dimensional micro- and nanostructure of porous biocompatible scaffolds and quantitative analysis of nanoscale porosity parameters.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Three-dimensional porous scaffolds made from spidroin rS1/9 (recombinant analog of spider dragline protein) were produced by salt leaching technique. Dimensions of macropores in produced three-imensional scaffolds were in range from 200 to 400 microns. The study of three-dimensional structure of scaffolds was carried out by scanning probe nanotomography technique with the use of experimental setup combining ultramicrotome and scanning probe microscope. </p></sec><sec><title>Results</title><p>Results. Three-dimensional nanotomographical reconstruction of scaffold macropore wall structure is obtained. The formation of three-dimensional network of interconnected pores and channels with characteristic dimensions in range from 20 to 700 nm in the volume of macropore walls of studied scaffolds is observed. Mean pore diameter is 150 nm. Volume porosity of macropore walls is 22% while volume fraction of pores interconnected in large pore clusters is about 20% of all pore volume.</p></sec><sec><title>Conclusion</title><p>Conclusion. Obtained as a result of the study quantitative characteristics of porous micro- and nanostructure of scaffolds show signifi cant degree of nanoscale porosity and percolation of macropore walls what correlates with reported high effi ciency of tissue regeneration on such scaffolds implanted in vivo. Use of scanning probe nanotomography technique for analysis of characteristics and topology of micro- and nanopore systems enables to improve effi ciency of development of novel biocompatible and biodegradable materials with predicted morphological, physical, chemical and biological characteristics.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сканирующая зондовая нанотомография</kwd><kwd>нанопористость</kwd><kwd>трехмерные биосовместимые матриксы</kwd><kwd>спидроин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>scanning probe nanotomography</kwd><kwd>nanoporosity</kwd><kwd>three-dimensional biocompatible scaffolds</kwd><kwd>spidroin</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Pilhofer M, Ladinsky MS, McDowall AW, Jensen GJ. Bacterial TEM: new insights from cryomicroscopy. 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