Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The role of traction in membrane curvature generation   Curvature in biological membranes can be generated by a variety of different
molecular mechanisms such as protein scaffolding, lipid or protein asymmetry,
cytoskeletal forces, etc. These mechanisms have the net effect of generating
stresses on the bilayer that are translated into distinct final shapes of the
membrane. We propose reversing this input-output relationship by using the
shape of a curved membrane to infer physical quantities like the magnitude of
the applied forces acting on the bilayer. To do this, we calculate the normal
and tangential tractions along the membrane using the known material properties
of the membrane along with its shape. These tractions are a quantitative
measure of the response of the membrane to external forces or sources of
spontaneous curvature. We demonstrate the utility of this approach first by
showing that the magnitude of applied force can be inferred from the shape of
the membrane alone in both simulations and experiments of membrane tubulation.
Next, we show that membrane budding by local differences in spontaneous
curvature is driven purely by the generation of traction in the radial
direction and the emergence of an effective line tension at the boundary of
these regions. Finally, we show that performing this calculation on images of
phase-separated giant vesicles yields a line tension similar to experimentally
determined values.

23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph