Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Architecting three-dimensional ZnO nanorods   The fabrication of nanostructures with controlled assembly and architecture
is significant for the development of novel nanomaterials-based devices. In
this work we demonstrate that laser techniques coupled with low-temperature
hydrothermal growth enable complex three-dimensional ZnO nanorods patterning on
various types of substrates and geometries. The suggested methodology is based
on a procedure involving the 3D scaffold fabrication using Multi-Photon
Lithography of a photosensitive material, followed by Zn seeded Aqueous
Chemical Growth of ZnO nanorods. 3D, uniformly aligned ZnO nanorods are
produced, exhibiting electrical conductance and highly efficient photocatalytic
performance, providing a path to applications in a diverse field of
technologies.

34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con