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Группа ученых из нескольких китайских учреждений разработала гидрогель, способный остановить кровотечение из проколотой артерии, одно из сильнейших и опаснейших для человека. В своей статье, опубликованной в Nature Communications, ученые описывают, как был сделан гидрогель и насколько хорошо он работал на подопытных животных. Неконтролируемое кровотечение — очень серьезная ситуация, как во время хирургических процедур, так и полученное в результате травмы.

Создан гидрогель, способный остановить артериальное кровотечение

Гидрогель поможет с сильным кровотечением

В большинстве случаев оно является результатом повреждения крупной артерии или органа вроде печени. Во всех случаях нужно принимать решения незамедлительно, иначе пострадавший умрет. Сейчас, лечение таких ран включает зажатие артерии с последующим наложением швов для закрытия раны. В прошлом, ученые пытались создать своего рода клей, чтобы «заклеивать» раны, но пока ни один из них не работал как задумывалось — либо клей состоял из токсичных материалов, либо был недостаточно прочным, чтобы противостоять высокому давлению жидкости в кровотоке. И вот, кажется, ученым удалось создать гидрогель, решающий обе проблемы.

Создан гидрогель, способный остановить артериальное кровотечение

Новый гидрогель состоит из воды, желатина и смеси белков и других химических веществ. Задумывалось, что его структура будет максимально близка соединительным тканям человека. Когда ультрафиолетовый свет попадает на гель, тот затвердевает и уплотняется, прилипая к ране и предотвращая вытекание крови. И все это за 20-30 секунд. Ученые отмечают, что гидрогель может выдерживать давление в 290 мм рт. ст. — намного выше нормального.

Исследователи также сообщают, что испытали свой гидрогель, проколов сонную артерию подопытной свиньи и наложив гель на рану. Гидрогель не только закрыл рану (и спас жизнь свиньи), но и способствовал заживлению раны. Кроме того, гидрогель начал разлагаться безвредно для организма. Затем ученые остановили кровотечение из бедренной артерии кролика и из его печени. Потребуется проведение дополнительных работы по исследованию безопасности геля, прежде чем переходить к испытаниям на людях, но предварительные результаты уже можно считать успешными.

А вам пригодился бы такой гель в жизни? Расскажите в нашем чате в Телеграме.

Источник: hi-news.ru

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