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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">10.15825/1995-1191-2015-2-37-44</article-id><article-id custom-type="elpub" pub-id-type="custom">vtio-547</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>СРАВНИТЕЛЬНЫЙ АНАЛИЗ ТРЕХМЕРНОЙ НАНОСТРУКТУРЫ ПОРИСТЫХ БИОДЕГРАДИРУЕМЫХ МАТРИКСОВ ИЗ РЕКОМБИНАНТНОГО СПИДРОИНА И ФИБРОИНА ШЕЛКА ДЛЯ РЕГЕНЕРАТИВНОЙ МЕДИЦИНЫ</article-title><trans-title-group xml:lang="en"><trans-title>COMPARATIVE ANALYSIS OF THREE-DIMENSIONAL NANOSTRUCTURE OF POROUS BIOCOMPATIBLE SCAFFOLDS MADE OF RECOMBINANT SPIDROIN AND SILK FIBROIN FOR REGENERATIVE MEDICINE</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>Агапова</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Agapova</surname><given-names>O. I.</given-names></name></name-alternatives><email xlink:type="simple">gor_agapov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><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><email xlink:type="simple">gor_agapov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мойсенович</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Moisenovich</surname><given-names>M. M.</given-names></name></name-alternatives><email xlink:type="simple">gor_agapov@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богуш</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogush</surname><given-names>V. G.</given-names></name></name-alternatives><email xlink:type="simple">gor_agapov@mail.ru</email><xref ref-type="aff" rid="aff-3"/></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>Для корреспонденции: Агапов Игорь Иванович. Адрес: 123182, г. Москва, ул. Щукинская, д. 1.</p><p>Тел. (499) 190-66-19. E-mail: igor_agapov@mail.ru</p></bio><bio xml:lang="en"><p>For correspondence: Agapov Igor Ivanovich. Address: 123182, Moscow, Schukinskaya st., 1. Tel. (499) 190-66-19. E-mail: igor_agapov@mail.ru.</p></bio><email xlink:type="simple">gor_agapov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральный научный центр трансплантологии и искусственных органов имени академика В.И. Шумакова, Москва<country>Россия</country></aff><aff xml:lang="en">V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs of the Ministry of Healthcare of the Russian Federation, Moscow<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Биологический факультет МГУ им. М.В. Ломоносова, Москва<country>Россия</country></aff><aff xml:lang="en">Faculty of Biology, Moscow State University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Государственный научно-исследовательский институт генетики и селекции промышленных микроорганизмов, Москва<country>Россия</country></aff><aff xml:lang="en">The State Research Institute for Genetics and Selection of Industrial Microorganisms, Moscow<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>26</day><month>05</month><year>2015</year></pub-date><volume>17</volume><issue>2</issue><fpage>37</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Агапова О.И., Ефимов А.Е., Мойсенович М.М., Богуш В.Г., Агапов И.И., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Агапова О.И., Ефимов А.Е., Мойсенович М.М., Богуш В.Г., Агапов И.И.</copyright-holder><copyright-holder xml:lang="en">Agapova O.I., Efimov A.E., Moisenovich M.M., Bogush V.G., 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/547">https://journal.transpl.ru/vtio/article/view/547</self-uri><abstract><p>Цель. Сравнение трехмерной наноструктуры пористых биосовместимых матриксов из фиброина шелка Bombyx mori и рекомбинантного спидроина rS1/9. Материалы и методы. Трехмерные пористые матриксы были получены методом выщелачивания. При сравнении биологических свойств показано, что адгезия и пролиферация мышиных фибробластов на двух видах матриксов различались незначительно. В сравнительных экспериментах in vivo показано, что регенерация костной ткани у крыс происходит быстрее при имплантации матриксов из рекомбинантного спидроина. С целью объяснения более высокой регенеративной активности матриксов из спидроина с помощью сканирующей зондовой нанотомографии была исследована трехмерная наноструктура матриксов, а также сообщаемость нанопор внутри матриксов. Результаты. Были обнаружены существенные отличия в плотности и объеме нанопор: в матриксах из rS1/9 интегральная плотность нанопор, зафиксированная в двухмерном атомно-силовом изображении, составляла 46 мкм–2, а степень пористости – 24%; в трехмерных структурах из фиброина шелка плотность нанопор и степень пористости были 2,4 мкм–2  и 0,5% соответственно. Трехмерная реконструкция системы нанопор и образованных ими кластеров в матриксах из rS1/9 показала, что объемная доля взаимосвязанных пор в перколяционных кластерах равна 35,3% от всего объема пор, что составляет 8,4% от общего объема матрикса. Выводы. Метод сканирующей зондовой нанотомографии позволяет получить уникальную информацию о топологии систем нанопор искусственных биоконструкций. При сравнительном анализе наноструктуры искусственных матриксов из регенерированного шелка и рекомбинантного спидроина, полученных методом выщелачивания, показано, что скэффолды из спидроина имеют более высокую интегральную плотность нанопор, степень пористости и объемную долю взаимосвязанных пор.</p></abstract><trans-abstract xml:lang="en"><p>Aim. To perform a comparison of three-dimensional nanostructure of porous biocompatible scaffolds made of fibroin Bombix mori and recombinant spidroin rS1/9. Materials and methods. Three-dimensional porous scaffolds were produced by salt leaching technique. The comparison of biological characteristics of the scaffolds shows that adhesion and proliferation of mouse fibroblasts in vitro on these two types of scaffolds do not differ significantly. Comparative experiments in vivo show that regeneration of bone tissue of rats is faster with implantation of recombinant spidroin scaffolds. Three-dimensional nanostructure of scaffolds and interconnectivity of nanopores were studied with scanning probe nanotomography (SPNT) to explain higher regenerative activity of spidroin-based scaffolds. Results. Significant differences were detected in the integral density and volume of pores: the integral density of nanopores detected on 2D AFM images is 46 μm–2    and calculated volume porosity is 24% in rS1/9-based scaffolds; in fibroin-based three-dimensional structures density of nanopores and calculated volume porosity were 2.4 μm–2  and 0.5%, respectively. Three-dimensional reconstruction system of nanopores and clusters of interconnected nanopores in rS1/9-based scaffolds showed that volume fraction of pores interconnected in percolation clusters is 35.3% of the total pore volume or 8.4% of the total scaffold volume. Conclusion. Scanning probe nanotomography method allows obtaining unique information about topology of micro – and nanopore systems of artificial biostructures. High regenerative activity of rS1/9-based scaffolds can be explained by higher nanoporosity of the scaffolds.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сканирующая зондовая нанотомография</kwd><kwd>нанопористость</kwd><kwd>трехмерные биосовместимые матриксы</kwd><kwd>фиброин шелка</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>silk fibroin</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">Manzano A, Monaghan M, Potrata B, Clayton M. The invisible issue of organ laundering. Transplantation. 2014; 98: 600–603. DOI: 10.1097/TP.0000000000000333.</mixed-citation><mixed-citation xml:lang="en">Manzano A, Monaghan M, Potrata B, Clayton M. The invisible issue of organ laundering. Transplantation. 2014; 98: 600–603. DOI: 10.1097/TP.0000000000000333.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">van Uden S, Silva-Correia J, Correlo VM et al. Customtailored tissue engineered polycaprolactone scaffolds for total disc replacement. Biofabrication. 2015; 7: 015008. DOI: 10.1088/1758-5090/7/1/015008 (in press).</mixed-citation><mixed-citation xml:lang="en">van Uden S, Silva-Correia J, Correlo VM et al. Customtailored tissue engineered polycaprolactone scaffolds for total disc replacement. Biofabrication. 2015; 7: 015008. DOI: 10.1088/1758-5090/7/1/015008 (in press).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Balyura M, Gelfgat E, Ehrhart-Bornstein M et al. Transplantation of bovine adrenocortical cells encapsulated in alginate. Proceedings of the National Academy of Sciences of the United States of America. 2015; 112: 2527–2532. DOI: 10.1073/pnas.1500242112.</mixed-citation><mixed-citation xml:lang="en">Balyura M, Gelfgat E, Ehrhart-Bornstein M et al. Transplantation of bovine adrenocortical cells encapsulated in alginate. Proceedings of the National Academy of Sciences of the United States of America. 2015; 112: 2527–2532. DOI: 10.1073/pnas.1500242112.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">An B, Tang-Schomer MD, Huang W He J, Jones JA, Lewis RV et al. Physical and biological regulation of neuron regenerative growth and network formation on recombinant dragline silks. Biomaterials. 2015; 48: 137–146. DOI: 10.1016/j.biomaterials.2015.01.044.</mixed-citation><mixed-citation xml:lang="en">An B, Tang-Schomer MD, Huang W He J, Jones JA, Lewis RV et al. Physical and biological regulation of neuron regenerative growth and network formation on recombinant dragline silks. Biomaterials. 2015; 48: 137–146. DOI: 10.1016/j.biomaterials.2015.01.044.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Bogush VG, Sokolova OS, Davydova LI, Klinov DV, Sidoruk KV, Esipova NG et al. A novel model system for design of biomaterials based on recombinant analogs of spider silk proteins. Journal of neuroimmune pharmacology. 2009; 4: 17–27. DOI: 10.1007/s11481-008-9129-z.</mixed-citation><mixed-citation xml:lang="en">Bogush VG, Sokolova OS, Davydova LI, Klinov DV, Sidoruk KV, Esipova NG et al. A novel model system for design of biomaterials based on recombinant analogs of spider silk proteins. Journal of neuroimmune pharmacology. 2009; 4: 17–27. DOI: 10.1007/s11481-008-9129-z.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Sheikh FA, Ju HW, Moon BM, Lee OJ, Kim JH, Park HJ et al. Hybrid scaffolds based on PLGA and silk for bone tissue engineering. Journal of tissue engineering and regenerative medicine. 2015. DOI: 10.1002/term.1989 (in press).</mixed-citation><mixed-citation xml:lang="en">Sheikh FA, Ju HW, Moon BM, Lee OJ, Kim JH, Park HJ et al. Hybrid scaffolds based on PLGA and silk for bone tissue engineering. Journal of tissue engineering and regenerative medicine. 2015. DOI: 10.1002/term.1989 (in press).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Luo Y, Shen H, Fang Y, Cao Y, Huang J, Zhang M et al. Enhanced proliferation and osteogenic differentiation of mesenchymal stem cells on graphene oxide-incorporated electrospun poly (lactic-co-glycolic acid) nanofibrous mats. ACS applied materials &amp; interfaces. 2015. DOI: 10.1021/acsami.5b00862 (in press).</mixed-citation><mixed-citation xml:lang="en">Luo Y, Shen H, Fang Y, Cao Y, Huang J, Zhang M et al. Enhanced proliferation and osteogenic differentiation of mesenchymal stem cells on graphene oxide-incorporated electrospun poly (lactic-co-glycolic acid) nanofibrous mats. ACS applied materials &amp; interfaces. 2015. DOI: 10.1021/acsami.5b00862 (in press).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Carballo-Molina OA, Velasco I. Hydrogels as scaffolds and delivery systems to enhance axonal regeneration after injuries. Frontiers in cellular neuroscience. 2015; 9: 13. DOI: 10.3389/fncel.2015.00013 (in press).</mixed-citation><mixed-citation xml:lang="en">Carballo-Molina OA, Velasco I. Hydrogels as scaffolds and delivery systems to enhance axonal regeneration after injuries. Frontiers in cellular neuroscience. 2015; 9: 13. DOI: 10.3389/fncel.2015.00013 (in press).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Jeffries EM, Allen RA, Gao J, Pesce M, Wang Y. Highly elastic and suturable electrospun poly(glycerol sebacate) fibrous scaffolds. Acta biomaterialia. 2015. DOI: 10.1016/j.actbio.2015.02.005 (in press).</mixed-citation><mixed-citation xml:lang="en">Jeffries EM, Allen RA, Gao J, Pesce M, Wang Y. Highly elastic and suturable electrospun poly(glycerol sebacate) fibrous scaffolds. Acta biomaterialia. 2015. DOI: 10.1016/j.actbio.2015.02.005 (in press).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Gandhimathi C, Venugopal JR, Tham AY, Ramakrishna S, Kumar SD. Biomimetic hybrid nanofibrous substrates for mesenchymal stem cells differentiation into osteogenic cells. Materials science &amp; engineering C. Materials for biological applications. 2015; 49: 776–785. DOI: 10.1016/j.msec.2015.01.075.</mixed-citation><mixed-citation xml:lang="en">Gandhimathi C, Venugopal JR, Tham AY, Ramakrishna S, Kumar SD. Biomimetic hybrid nanofibrous substrates for mesenchymal stem cells differentiation into osteogenic cells. Materials science &amp; engineering C. Materials for biological applications. 2015; 49: 776–785. DOI: 10.1016/j.msec.2015.01.075.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Campinez MD, Ferris C, de Paz MV, Aguilar-de-Leyva A, Galbis J, Caraballo I. A new biodegradable polythiourethane as controlled release matrix polymer. International journal of pharmaceutics. 2015; 480: 63–72. DOI: 10.1016/j.ijpharm.2015.01.011.</mixed-citation><mixed-citation xml:lang="en">Campinez MD, Ferris C, de Paz MV, Aguilar-de-Leyva A, Galbis J, Caraballo I. A new biodegradable polythiourethane as controlled release matrix polymer. International journal of pharmaceutics. 2015; 480: 63–72. DOI: 10.1016/j.ijpharm.2015.01.011.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Niu Y, Li L, Chen KC, Chen F, Liu X, Ye J et al. Scaffolds from alternating block polyurethanes of poly(varepsiloncaprolactone) and poly(ethylene glycol) with stimulation and guidance of nerve growth and better nerve repair than autograft. Journal of biomedical materials research Part A. 2014. DOI: 10.1002/jbm.a.35372 (in press).</mixed-citation><mixed-citation xml:lang="en">Niu Y, Li L, Chen KC, Chen F, Liu X, Ye J et al. Scaffolds from alternating block polyurethanes of poly(varepsiloncaprolactone) and poly(ethylene glycol) with stimulation and guidance of nerve growth and better nerve repair than autograft. Journal of biomedical materials research Part A. 2014. DOI: 10.1002/jbm.a.35372 (in press).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Moisenovich MM, Pustovalova OL, Arhipova AY, Vasiljeva TV, Sokolova OS, Bogush VG et al. In vitro and in vivo biocompatibility studies of a recombinant analogue of spidroin 1 scaffolds. Journal of biomedical materials research Part A. 2011; 96: 125–131. DOI: 10.1002/ jbm.a.32968.</mixed-citation><mixed-citation xml:lang="en">Moisenovich MM, Pustovalova OL, Arhipova AY, Vasiljeva TV, Sokolova OS, Bogush VG et al. In vitro and in vivo biocompatibility studies of a recombinant analogue of spidroin 1 scaffolds. Journal of biomedical materials research Part A. 2011; 96: 125–131. DOI: 10.1002/ jbm.a.32968.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Efimov AE, Tonevitsky AG, Dittrich M, Matsko NB. Atomic force microscope (AFM) combined with the ultramicrotome: a novel device for the serial section tomography and AFM/TEM complementary structural analysis of biological and polymer samples. Journal of Microscopy. 2007; 226 (3): 207–217. DOI: 10.1111/j.1365-2818.2007.01773.x.</mixed-citation><mixed-citation xml:lang="en">Efimov AE, Tonevitsky AG, Dittrich M, Matsko NB. Atomic force microscope (AFM) combined with the ultramicrotome: a novel device for the serial section tomography and AFM/TEM complementary structural analysis of biological and polymer samples. Journal of Microscopy. 2007; 226 (3): 207–217. DOI: 10.1111/j.1365-2818.2007.01773.x.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Mochalov KE, Efim ov AE, Bobrovsky A, Agapov II, Chistyakov AA, Oleinikov VA et al. Combined Scanning Probe Nanotomography and Optical Microspectroscopy: A Correlative Technique for 3D Characterization of Nanomaterials, ACS Nano. 2013; 7 (10): 8953–8962. DOI: 10.1021/nn403448p.</mixed-citation><mixed-citation xml:lang="en">Mochalov KE, Efim ov AE, Bobrovsky A, Agapov II, Chistyakov AA, Oleinikov VA et al. Combined Scanning Probe Nanotomography and Optical Microspectroscopy: A Correlative Technique for 3D Characterization of Nanomaterials, ACS Nano. 2013; 7 (10): 8953–8962. DOI: 10.1021/nn403448p.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Scher H, Zallen R. Critical density in percolation processes. J. Chem. Phys. 1970; 53: 3759–3761. DOI: 10.1063/1.1674565.</mixed-citation><mixed-citation xml:lang="en">Scher H, Zallen R. Critical density in percolation processes. J. Chem. Phys. 1970; 53: 3759–3761. DOI: 10.1063/1.1674565.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Hunt A, Ewing R. Percolation Theory for Flow in Porous Media, Lect. Notes Phys. Springer: Berlin Heidelberg, 2009; 771.</mixed-citation><mixed-citation xml:lang="en">Hunt A, Ewing R. Percolation Theory for Flow in Porous Media, Lect. Notes Phys. Springer: Berlin Heidelberg, 2009; 771.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Wang Q, Chen Q, Yang Y, Shao Z. Effect of various dissolution systems on the molecular weight of regenerated silk fibroin. Biomacromolecules. 2013; 14: 285–289. DOI: 10.1021/bm301741q.</mixed-citation><mixed-citation xml:lang="en">Wang Q, Chen Q, Yang Y, Shao Z. Effect of various dissolution systems on the molecular weight of regenerated silk fibroin. Biomacromolecules. 2013; 14: 285–289. DOI: 10.1021/bm301741q.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Sokolova OS, Bogush VG, Davydova LI, Polevova SV, Antonov SA, Neretina TV et al. The formation of a quaternary structure by recombinant analogs of spider silk proteins. Molecular Biology. 2010; 44: 150–157. DOI: 10.1134/S0026893310010188.</mixed-citation><mixed-citation xml:lang="en">Sokolova OS, Bogush VG, Davydova LI, Polevova SV, Antonov SA, Neretina TV et al. The formation of a quaternary structure by recombinant analogs of spider silk proteins. Molecular Biology. 2010; 44: 150–157. DOI: 10.1134/S0026893310010188.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Агапов ИИ, Мойсенович ММ, Васильева ТВ, Пустовалова ОЛ, Коньков АС, Архипова АЮ и др. Биодеградируемые матриксы из регенерированного шелка bombix mori. Доклады Академии наук. 2010; 433 (5): 699–702. Agapov II, Moysenovich MM, Vasil'eva TV, Pustovalova OL, Kon'kov AS, Arhipova AYu et al. Biodegradiruemye matriksy iz regenerirovannogo shelka bombix mori. Doklady Akademii nauk. 2010; 433 (5): 699–702.</mixed-citation><mixed-citation xml:lang="en">Агапов ИИ, Мойсенович ММ, Васильева ТВ, Пустовалова ОЛ, Коньков АС, Архипова АЮ и др. Биодеградируемые матриксы из регенерированного шелка bombix mori. Доклады Академии наук. 2010; 433 (5): 699–702. Agapov II, Moysenovich MM, Vasil'eva TV, Pustovalova OL, Kon'kov AS, Arhipova AYu et al. Biodegradiruemye matriksy iz regenerirovannogo shelka bombix mori. Doklady Akademii nauk. 2010; 433 (5): 699–702.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Биосовместимые материалы: Учебное пособие / Под. ред. В.И. Севастьянова, М.П. Кирпичникова. М.: Медицинское информационное агентство, 2011: 544. Biosovmestimye materialy: Uchebnoe posobie / Pod. red. V.I. Sevast'yanova, M.P. Kirpichnikova. M.: Medicinskoe informacionnoe agentstvo, 2011: 544</mixed-citation><mixed-citation xml:lang="en">Биосовместимые материалы: Учебное пособие / Под. ред. В.И. Севастьянова, М.П. Кирпичникова. М.: Медицинское информационное агентство, 2011: 544. Biosovmestimye materialy: Uchebnoe posobie / Pod. red. V.I. Sevast'yanova, M.P. Kirpichnikova. M.: Medicinskoe informacionnoe agentstvo, 2011: 544</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
