Abstract: An apparatus and methods for biomolecular crystallization is disclosed. The method includes providing biomolecule solution and bringing the biomolecule solution into direct contact with a plurality of electrodes. An alternating current is applied to the plurality of electrodes to impart a dielectrophoresis force upon the biomolecule solution and to form at least one crystal from the biomolecule solution.

Abstract: An electro-hydrodynamic apparatus and method of using the same is disclosed. The electro-hydrodynamic apparatus includes a liquid sample supported on a substrate, with at least one electrode located proximate the surface of the liquid sample without contacting the liquid sample. A power supply creates an electric field proximate the surface of the liquid sample, thereby inducing a motion to the liquid sample. The apparatus may be used for focusing and separating particles within a liquid, and pumping and mixing a liquid sample or a liquid mixture with or without particles. The apparatus creates a primary rotational flow on a liquid surface to create a secondary inertial flow.