تقرير
Encapsulated bacteria deform lipid vesicles into flagellated swimmers
| العنوان: | Encapsulated bacteria deform lipid vesicles into flagellated swimmers |
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| المؤلفون: | Nagard, Lucas Le, Brown, Aidan T., Dawson, Angela, Martinez, Vincent A., Poon, Wilson C. K., Staykova, Margarita |
| المصدر: | Proceedings of the National Academy of Sciences, 119(34), e2206096119 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Physics - Biological Physics |
| الوصف: | We study a synthetic system of motile Escherichia coli bacteria encapsulated inside giant lipid vesicles. Forces exerted by the bacteria on the inner side of the membrane are sufficient to extrude membrane tubes filled with one or several bacteria. We show that a physical coupling between the membrane tube and the flagella of the enclosed cells transforms the tube into an effective helical flagellum propelling the vesicle. We develop a simple theoretical model to estimate the propulsive force from the speed of the vesicles, and demonstrate the good efficiency of this coupling mechanism. Together, these results point to design principles for conferring motility to synthetic cells. Comment: 22 pages, 12 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1073/pnas.2206096119 |
| URL الوصول: | http://arxiv.org/abs/2204.03721 |
| رقم الأكسشن: | edsarx.2204.03721 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1073/pnas.2206096119 |
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