116 citations · 144 across the 3 of their papers we have counts for
4 papers
Integer Topological Defects Reveal Anti-Symmetric Forces in Active Nematics
Zihui Zhao, Yisong Yao, He Li +5
Cell layers are often categorized as contractile or extensile active nematics but recent experiments on neural progenitor cells with induced topological defects challenge this…
Controlling cell motion and microscale flow with polarized light fields
Siyuan Yang, Mingji Huang, Yongfeng Zhao +1
We investigate how light polarization affects the motion of photo-responsive algae, \textit{Euglena gracilis}. In a uniformly polarized field, cells swim approximately perpendicula…
Surface Tensions between Active Fluids and Solid Interfaces: bare vs dressed
Ruben Zakine, Yongfeng Zhao, Miloš Knežević +4
We analyze the surface tension exerted at the interface between an active fluid and a solid boundary in terms of tangential forces. Focusing on active systems known to possess an e…
Activated escape of a self-propelled particle from a metastable state
Eric Woillez, Yongfeng Zhao, Yariv Kafri +2
We study the noise-driven escape of active Brownian particles (ABPs) and run-and-tumble particles (RTPs) from confining potentials. In the small noise limit, we provide an exact ex…