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Матрицы на основе фиброина шелка для культивирования клеток

выпускная квалификационная работа бакалавра

Матрицы на основе фиброина шелка для культивирования клеток

Abstract

Тема выпускной квалификационной работы: «Матрицы на основе фиброина шелка для культивирования клеток». В данной работе была разработана технология получения пленок на основе фиброина шелка, предназначенных для культивирования клеток. Для создания тканеинженерных конструкций применялся метод полива водного раствора фиброина на подложку из полистирола. Для получения нерастворимых в воде пленок отработали условия инкубации пленок в спирты. С помощью ИК-спектроскопии был подтвержден конформационный переход от неупорядоченной структуры необработанной пленки к β – складчатой структуре обработанного спиртом изделия. При термообработке образцов в диапазоне температур от 30°C до 140°C наблюдалась потеря массы (<7%), связанная с выходом влаги из образцов. На ДСК выявили температуру стеклования необработанной метанолом пленки и пленки после воздействия метанола, 216°C и 201°C соответственно. Исследование механических свойств показало, что в зависимости от среды проведения эксперимента: сухой или жидкой, пленочный материал имеет разные прочностные и деформационные характеристики. Пленки на основе фиброина шелка с добавлением ПЭГ или ПЭГ - диамина не оказывают токсического влиянии на мезенхимные стромальные клетки костного мозга человека. Все вышеперечисленные пункты указывают на то, что пленочные изделия на основе фиброина могут быть использованы в качестве тканеинженерных конструкций.

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.

Keywords

mesenchymal stem cells, tissue engineering, polyethylene glycol, fibroin films, тканевая инженерия, Ð¼ÐµÐ·ÐµÐ½Ñ Ð¸Ð¼Ð°Ð»ÑŒÐ½Ñ‹Ðµ стволовые клетки, полиэтиленгликоль, фиброиновые пленки

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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