Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theory of molecular crowding in Brownian hard-sphere liquids with
  application to the polymer coil-globule transition   We derive an analytical pair potential of mean force for Brownian molecules
in the liquid-state. Our approach accounts for many-particle correlations of
crowding particles of the liquid, and for diffusive transport across the
spatially modulated local density of crowders in the dense environment.
Specializing on the limit of equal-size particles, we show that this diffusive
transport leads to additional density- and structure-dependent terms in the
interaction potential, and to a much stronger attraction (by a factor ~4 at
average volume fraction of crowders 0.25) than in the standard depletion
interaction where the diffusive effects are neglected. As an illustration of
the theory, we use it to study the size of a polymer chain in a solution of
inert crowders. Even in the case of athermal background solvent, when a
classical chain should be fully swollen, we find a sharp coil-globule
transition of the ideal chain collapsing at a critical value of the crowder
volume fraction ~0.145.

5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs