Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reversible Pore Gating in Aqueous Mixtures via External Potential   We examine theoretically porous membranes in aqueous mixtures. We show that
large membrane pores can be reversibly gated from `off' (co-solvent-rich, poor
conductor of ions and other solutes) to 'on' (water-rich, good conductor)
states by an external potential. The transition voltage or charge for switching
depends on the membrane hydrophilicity/hydrophobicity, the salt content, the
preferential solvation of the salt ions, and the temperature. These parameters
also determine whether the filling transition is abrupt or gradual.

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The categories of this paper are: cs
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: physics
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat