Dynamic mixing and electroporation chamber and system

An electroporation apparatus and its novel chamber with inlet ports for mixing cells and exogenous material. The inlet ports are oriented in nonparallel to each other immediately adjacent at the same top corner of the first wall of the chamber. The mixing chamber comprises successive wall sections, two curved walls at its bottom; the first curved corner is on the same side of the chamber where the liquids enter the chamber, and directs the liquids to the second curved corner at the opposing side of the chamber which in turn further redirects the mixing to the first curved corner. The direction of the liquid flow mixture change direction at least twice into the mixing chamber.