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Ученые создали контактные линзы с лекарством, меняющие цвет, для контроля дозировки
Ученые создали контактные линзы с лекарством, меняющие цвет, для контроля дозировки
Ученые из Китайского фармацевтического университета разработали контактные линзы с лекарственным препаратом, которые меняют свой цвет при выделении действующего вещества. Это позволяет контролировать процесс терапии. Статья об изобретении опубликована в журнале Applied Materials & Interfaces 10 октября.
С помощью метода молекулярного импринтинга ученым удалось создать контактные линзы с микроскопическими порами, в которые был внедрен используемый для лечения глаукомы препарат тимолол. Испытания линз проводились на жидкости, по своему составу схожей с человеческими слезами.
Пропитанные действующими веществами контактные линзы исследовались и ранее. Но отличительной особенностью китайской разработки является возможность контролировать количество поступившего препарата в организм. Для этого линзы созданы таким образом, что при выходе из них препарата в них изменяется размер микропор, тем самым меняя длину отражающейся световой волны. Таким образом линзы меняют цвет с зеленого на синий. Так врач может контролировать действие назначенных лекарств.
Ученые отмечают, что в будущем подобные разработки помогут не только упростить доставку препаратов до глаза, но и заменить собой традиционные капли.
Ранее в США были одобрены для применения контактные линзы со встроенным автозатемнением на солнечном свете.
Справка: метод молекулярного импринтинга основан на полимеризации функциональных мономеров в присутствии специально введенных целевых молекул-темплатов.
15 октября 2018
Выпуск: №177, октябрь 20181616 просмотров
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