Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coalescence driven self-organization of growing nanodroplets around a
  microcap   The coalescence between growing droplets is important for the surface
coverage and spatial arrangements of droplets on surfaces. In this work, total
internal reflection fluorescence (TIRF) microscopy is utilized to in-situ
investigate the formation of nanodroplets around the rim of a polymer microcap,
with sub-micron spatial and millisecond temporal resolution. We observe that
the coalescence among droplets occurs frequently during their growth by solvent
exchange. Our experimental results show that the position of the droplet from
two merged droplets is related to the size of the parent droplets. The position
of the coalesced droplet and the ratio of parent droplet sizes obey a scaling
law, reflecting a coalescence preference based on the size inequality. As a
result of droplet coalescence, the angles between the centroids of two
neighbouring droplets increase with time, obeying a nearly symmetrical
arrangement of droplets at various time intervals. The evolution of the
position and number from coalescence of growing droplets is modelled. The
mechanism for coalescence driven self-organization of growing droplets is
general, applicable to microcaps of different sizes and droplets of different
liquids. The understanding from this work may be valuable for positioning
nanodroplets by nucleation and growth without using templates.

22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph