  Techniques to reliably pick and place single nanoparticles into functional
assemblies are required to incorporate exotic nanoparticles into standard
electronic circuits. In this paper we explore the use of electric fields to
drive and direct the assembly process, which has the advantage of being able to
control the nano-assembly process at the single nanoparticle level. To achieve
this, we design an electrostatic gating system, thus enabling a voltage
controllable nanoparticle picking technique. Using the nonlinear
Poisson-Boltzmann equation, we can successfully characterise the parameters
required for single-particle placement, the key being single particle
selectivity, in effect designing a system that can achieve this controllably.
We then present the optimum design parameters required for successful single
nanoparticle placements at ambient temperatures, an important requirement for
nanomanufacturing processes.
