Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Permeation of Water Nanodroplets on Carbon Nanotubes Forests   Fully atomistic molecular dynamics simulations were carried out to
investigate how a liquid-like water droplet behaves when into contact with a
nanopore formed by carbon nanotube arrays. We have considered different tube
arrays, varying the spacing between them, as well as, different chemical
functionalizations on the uncapped nanotubes. Our results show that simple
functionalizations (for instance, hydrogen ones) allow tuning up the wetting
surface properties increasing the permeation of liquid inside the nanopore. For
functionalizations that increase the surface hydrophilicity, even when the pore
size is significantly increased the droplet remains at the surface without tube
permeation.

6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
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
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex