Hydrodynamically Controlled Electric Fields for High Throughput Transformation & High Throughput Parallel Transformation Platform

Methods and apparatuses for cell electroporation are provided. An apparatus includes a fluid transport structure, such as a pipette, that includes an electroporation structure defining a flow path having a constriction. The fluid transport structure also includes at least two conductive elements configured to produce an electric field in the flow path. The conductive elements are in operative arrangement with each other and are configured to expose cells contained within a cell suspension flowing through the fluid transport structure to an electric field that is sufficient to electroporate at least a subset of the cells in the flow path.