تقرير
Swimming in a Crystal:
| العنوان: | Swimming in a Crystal: |
|---|---|
| المؤلفون: | Brown, Aidan T., Vladescu, Ioana D., Dawson, Angela, Vissers, Teun, Schwarz-Linek, Jana, Lintuvuori, Juho S., Poon, Wilson C. K. |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Physics - Biological Physics |
| الوصف: | We study catalytic Janus swimmers and Escherichia coli bacteria swimming in a two-dimensional colloidal crystal. The Janus swimmers orbit individual colloids and hop between colloids stochastically, with a hopping rate that varies inversely with fuel (hydrogen peroxide) concentration. At high fuel concentration, these orbits are stable for 100s of revolutions, and the orbital speed oscillates periodically as a result of hydrodynamic, and possibly also phoretic, interactions between the swimmer and the six neighbouring colloids. Motile E.~coli bacteria behave very differently in the same colloidal crystal: their circular orbits on plain glass are rectified into long, straight runs, because the bacteria are unable to turn corners inside the crystal. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1411.6847 |
| رقم الأكسشن: | edsarx.1411.6847 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |