Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Insight Into the Size Tuning of Monodispersed Colloidal Gold
  Obtained by Citrate Method   We study the effect of citrate to gold molar ratio (X) on the size of
citrated gold nanoparticles (AuNPs). This dependence is still a matter of
debate for X $\ge$ 3 where the polydispersity is yet minimized. Indeed, there
is no consensus between experiments proposed so far for comparable experimental
conditions. Nonetheless, the sole available theoretical prediction has never
been validated experimentally in this range of X. We show unambiguously using 3
techniques (UV-Vis spectroscopy, dynamic light scattering and transmission
electronic microscopy), 2 different synthetic approaches (Direct, Inverse) and
10 X values for each approach that AuNPs' size decay as a monoexponential with
X. This result is, for the first time, in agreement with the sole available
theoretical prediction by Kumar et al. on the whole studied range of X.

14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph