Guo-Jun Liao

We study two-dimensional self-propelled spherical particles which feel not only propulsion force but also propulsion torque using Brownian dynamics simulations, where the particle motion is governed by coupled Langevin equations. Therefore our interests lie in:

• Effects of propulsion torque and polar interaction on the stability of cluster formation and cluster sizes

• Characterizations of the motion of clockwise vortices inside clusters, which is induced by self-propelled particles which tend to move counterclockwise

• Development of the theoretical description of the macroscopic structure and collective behaviors of circle swimmers

Methods: Coupled Langevin Equations, Brownian Dynamics Simulations

G.-J. Liao, F.-T. Chien, D. A. Luzhbin, Y.-L. Chen,
Entropic attraction: Polymer compaction and expansion induced by nanoparticles in confinement
J. of Chem. Phys. 142, 174904 (2015)
http://scitation.aip.org/content/aip/journal/jcp/142/17/10.1063/1.4919650

Collective behaviors of spherical circle swimmers dispersed on a monolayer
Annual Meeting of International Graduate Research Training Group 1524,
October 2016, Neuruppin, Brandenburg, Germany

Dynamics and conformation of electrically-driven DNA translocation through biased nanoelectrodes embedded inside a nanofluidic channel
Annual Meeting of the Physical Society of the Republic of China (Taiwan),
January 2016, Kaohsiung City, Taiwan

The effect of confinement geometry on DNA condensation induced by nanoparticles
March Meeting of the American Physical Society,
March 2013, Baltimore, Maryland, U.S.

Master Thesis:
Entropic attraction: DNA condensation and expansion induced by nanoparticles in confinement
National Taiwan University, July 2014
Prof. Yeng-Long Chen & Prof. Chun-Yi David Lu