Kinetically Constrained A place to keep the longer thoughts of Doug Ashton.
Posts with the tag biology:

Lipid membranes on the arXiv

A while ago I discussed lipid membranes and how they could exhibit critical behaviour. There were some lovely pictures on criticality on giant unilamellar vesicles (GUVs) which are sort of model cell walls. That work was done by Sarah Keller and friends in Seattle. This morning on the arXiv I saw this new paper, also by Sarah: Dynamic critical exponent in a 2D lipid membrane with conserved order parameter They look at the critical dynamics of the GUV’s surface. Being embedded in a 3D fluid does have its consequences so they’ve attempted to account for the effect of hydrodynamic interactions. I haven’t poured over their model but the paper looks really nice.

Biological Membranes

It’s been ages since my last post. This is because I’ve been busy doing lots of interesting physics, met a bunch of interesting physicists, maybe I’ll write something about it. For now, something I’ve been meaning to write about for a while, and for once it’s something that’s timely. The journal Soft Matter has an issue out with a membrane biophysics theme. You can read the editorial for yourself if you have access, otherwise make do with my ropey understanding of it. Soft Matter is a relatively new journal that I think is looking really good. Their website needs work but I’ll leave that for my science 2.