High dynamic ablation and injection by electric cavitation for wide range of materials

Abstract

We have successfully carried out local reagent injection and perforation to materials of variety of hardness using bubble cavitation and plasma cavitation. Cavitation and plasma was generated by pulse discharge of microelectrode having special tip structure. Injection to soft material such as animal cell was performed only by cavitation of bubble, and perforation to hard materials such as seeds of plants or metals were achieved by synergistic effect of cavitation of bubble and plasma ablation. The novel device we produced has ability to perforate wide range of materials with high dynamic range of hardness.