Efficient collective motion of molecular motors
- Event time: 3:00pm
- Event date: 10th January 2014
- Speaker: Professor Ignacio Pagonabarraga (University of Barcelona)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
I will introduce effective, mesoscopic models which capture the dynamic coupling of the particles to their environment on the natural time and length scales in which they evolve, disregarding the details of the medium. I will analyze the peculiarities of collective transport of molecular motors along biofilaments, and the patterns they give rise to due to their coupling to the embedding fluid medium in which they displace and will discuss the relevant physical mechanisms underlying the specific properties of their collective behavior. By focusing on simplified models, it is then possible to identify the relevant parameters which control such behavior. Understanding the mechanical principles which determine cooperatively will help to clarify the role of physical coupling in active materials.
Since these systems are out of equilibrium, their mechanical balance is very sensitive to external disturbances. Therefore, once the basic principles which control the intrinsic activity of these systems has been clarified, it is interesting to analyze how do they react to externally applied fields or to geometric confinement.
This is a weekly series of informal talks given primarily by members of the soft condensed matter and statistical mechanics groups, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..