Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Drying of a Microdroplet of Water Suspension of Nanoparticles: from
  Surface Aggregates to Microcrystal   The method of formation of nanoparticle aggregates such as high-coverage
spherical shells of microspheres or 3-D micro crystals grown in the geometry
unaffected by a substrate is described. In the reported experiment, the
evaporation of single levitated water droplet containing 200 nm diameter
polystyrene spheres was studied. Successive stages of the drying process were
discussed by analyzing the intensity of light elastically scattered by the
evaporating droplet. The numerically simulated self-assembly coincides nicely
with the observed morphologies resulting from transformation of a droplet of
suspension into a solid microcrystal via kinetically driven self-assembly of
nanostructures.

9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs