  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.
