ABSTRACT

Laser ablation is currently being used as a method of micro-machining biofactory-on-a-chip devices [1]. These devices utilise electric fields to generate dielectrophoresis forces for manipulating very small particles such as cells and bacteria. In order to do this the devices require electrode and fluidic channel features that are similar to the dimensions of cells, i.e. microns in size. Various materials are employed to form the required structures, including plastic insulator films, resists and conducting metal layers.