Collective flow dynamics across a bacterial carpet: Understanding the forces generated

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104261

Title:	Collective flow dynamics across a bacterial carpet: Understanding the forces generated
Authors:	溫偉源;Hsiao, Yi-Teng;Wang, Jing-Hui;Wu, Kuan-Ting;Tsai, Jengjan;Chang, Cheng-Hung;Woon, Wei-Yen
Contributors:	理學院物理學系
Keywords:	Applied physics;Bacteria;Bifurcations;Carpets;Synchronism
Date:	2014-11-17
Issue Date:	2026-04-23 11:46:51 (UTC+8)
Publisher:	Melville: AIP Publishing
Abstract:	摘要： Bacterial carpets consist of randomly anchored uni-polar-flagellated sodium-motive bacterial matrix are prepared by flow deposition. Collective flow dynamics across the bacterial carpets are probed with optical tweezers-microsphere assay. Around the center of a uniform bacterial cluster, collective forces that pull microsphere towards carpet surface are detected at a distance of 10 μm away from carpets. At sodium-motive driving over a critical value, the force magnitudes increase abruptly, suggesting a threshold-like transition of hydrodynamic synchronization across bacterial carpet. The abrupt force increase is explained in term of bifurcation to phase synchronization in a noisy non-linearly coupled rotor array mediated by hydrodynamic interactions. 出版者： Melville: AIP Publishing 出版日期： 2014-11-17 出處： Applied Physics Letters, 2014-11, Vol.105 (20) 資源來源： AIP Journals (American Institute of Physics) 版權： 2014 AIP Publishing LLC. 識別號： ISSN: 0003-6951 識別號： EISSN: 1077-3118 識別號： DOI: 10.1063/1.4902111
Appears in Collections:	[Department of Physics] journal & Dissertation

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