The nanoparticle depositor is a small apparatus to allow for the electrolytic deposition of a matrix and nanoparticle solution, which can be used to create a solid surface with the user’s nanoparticles of interest within a metal matrix.

The device is essentially an electrolytic cell, which can be connected either to a fixed potential, or more carefully controlled using e.g. a 3-wire electrolytic cell configuration, via a user-supplied potentiostat. The depositor consists of two halves, one PTFE and one acrylic, with a brass stub located at the base of the PTFE “funnel”.

For more details on the technique, see https://doi.org/10.1016/j.ultramic.2018.04.005