
Тема выпуÑкной квалификационной работы: «Матрицы на оÑнове фиброина шелка Ð´Ð»Ñ ÐºÑƒÐ»ÑŒÑ‚Ð¸Ð²Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ»ÐµÑ‚Ð¾ÐºÂ». Ð’ данной работе была разработана Ñ‚ÐµÑ…Ð½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð¿Ð¾Ð»ÑƒÑ‡ÐµÐ½Ð¸Ñ Ð¿Ð»ÐµÐ½Ð¾Ðº на оÑнове фиброина шелка, предназначенных Ð´Ð»Ñ ÐºÑƒÐ»ÑŒÑ‚Ð¸Ð²Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ»ÐµÑ‚Ð¾Ðº. Ð”Ð»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ñ‚ÐºÐ°Ð½ÐµÐ¸Ð½Ð¶ÐµÐ½ÐµÑ€Ð½Ñ‹Ñ… конÑтрукций применÑлÑÑ Ð¼ÐµÑ‚Ð¾Ð´ полива водного раÑтвора фиброина на подложку из полиÑтирола. Ð”Ð»Ñ Ð¿Ð¾Ð»ÑƒÑ‡ÐµÐ½Ð¸Ñ Ð½ÐµÑ€Ð°Ñтворимых в воде пленок отработали уÑÐ»Ð¾Ð²Ð¸Ñ Ð¸Ð½ÐºÑƒÐ±Ð°Ñ†Ð¸Ð¸ пленок в Ñпирты. С помощью ИК-ÑпектроÑкопии был подтвержден конформационный переход от неупорÑдоченной Ñтруктуры необработанной пленки к β – Ñкладчатой Ñтруктуре обработанного Ñпиртом изделиÑ. При термообработке образцов в диапазоне температур от 30°C до 140°C наблюдалаÑÑŒ Ð¿Ð¾Ñ‚ÐµÑ€Ñ Ð¼Ð°ÑÑÑ‹ (<7%), ÑвÑÐ·Ð°Ð½Ð½Ð°Ñ Ñ Ð²Ñ‹Ñ…Ð¾Ð´Ð¾Ð¼ влаги из образцов. Ðа ДСК выÑвили температуру ÑÑ‚ÐµÐºÐ»Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½ÐµÐ¾Ð±Ñ€Ð°Ð±Ð¾Ñ‚Ð°Ð½Ð½Ð¾Ð¹ метанолом пленки и пленки поÑле воздейÑÑ‚Ð²Ð¸Ñ Ð¼ÐµÑ‚Ð°Ð½Ð¾Ð»Ð°, 216°C и 201°C ÑоответÑтвенно. ИÑÑледование механичеÑких ÑвойÑтв показало, что в завиÑимоÑти от Ñреды Ð¿Ñ€Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÑкÑперимента: Ñухой или жидкой, пленочный материал имеет разные прочноÑтные и деформационные характериÑтики. Пленки на оÑнове фиброина шелка Ñ Ð´Ð¾Ð±Ð°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼ ПÐГ или ПÐГ - диамина не оказывают токÑичеÑкого влиÑнии на мезенхимные Ñтромальные клетки коÑтного мозга человека. Ð’Ñе вышеперечиÑленные пункты указывают на то, что пленочные Ð¸Ð·Ð´ÐµÐ»Ð¸Ñ Ð½Ð° оÑнове фиброина могут быть иÑпользованы в качеÑтве тканеинженерных конÑтрукций.
The theme of the final qualifying work: "Matrices based on silk fibroin for cell cultivation." In this work, a technology was developed for obtaining films based on silk fibroin intended for cell cultivation. To create tissue-engineered structures, the method of pouring an aqueous solution of fibroin onto a polystyrene substrate was used. To obtain water-insoluble films, we worked out the conditions for the incubation of films in alcohols. Using IR spectroscopy, the conformational transition from the disordered structure of the untreated film to the β-fold structure of the article treated with alcohol was confirmed. During heat treatment of the samples in the temperature range from 30 °C to 140 °C, a weight loss (<7%) was observed, associated with the release of moisture from the samples. DSC revealed the glass transition temperature of the film untreated with methanol and the film after exposure to methanol, 216 °C and 201 °C, respectively. The study of mechanical properties showed that, depending on the medium of the experiment: dry or liquid, the film material has different strength and deformation characteristics. Films based on silk fibroin with the addition of PEG or PEG - diamine do not have a toxic effect on the mesenchymal stromal cells of the human bone marrow. All of the above points indicate that fibroin-based film products can be used as tissue-engineered constructs.
mesenchymal stem cells, tissue engineering, polyethylene glycol, fibroin films, ÑÐºÐ°Ð½ÐµÐ²Ð°Ñ Ð¸Ð½Ð¶ÐµÐ½ÐµÑиÑ, Ð¼ÐµÐ·ÐµÐ½Ñ Ð¸Ð¼Ð°Ð»ÑнÑе ÑÑволовÑе клеÑки, полиÑÑиленгликолÑ, ÑибÑоиновÑе пленки
mesenchymal stem cells, tissue engineering, polyethylene glycol, fibroin films, ÑÐºÐ°Ð½ÐµÐ²Ð°Ñ Ð¸Ð½Ð¶ÐµÐ½ÐµÑиÑ, Ð¼ÐµÐ·ÐµÐ½Ñ Ð¸Ð¼Ð°Ð»ÑнÑе ÑÑволовÑе клеÑки, полиÑÑиленгликолÑ, ÑибÑоиновÑе пленки
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