Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Autonomous movement of chemically powered vesicle   A mechanism for self propulsion of deformable vesicle has been proposed,
vesicle moves by sensing the self-generated chemical gradient. Like many
molecular motors they suffer strong perturbations from the environment in which
they move as a result of thermal fluctuations and do not rely on inertia for
their propulsion. Motion of the vesicle is driven by an asymmetric distribution
of reaction products. The propulsive velocity of the device is calculated as
well as the scale of the velocity fluctuations. We present the simulation
results on velocity of vesicle, reorientation of vesicle, and shape
transformation of vesicles.

6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc