A technique for rapidly delivering drugs and/or chemicals to a specific area of the body by subjecting a liposome encapsulated drug and/or chemical to nonionizing electromagnetic fields. By subjecting the liposome to such fields in the range of 26-2,450 MHz drug/chemical release occurs in a rapid fashion...http://www.google.co.uk/patents/US4801459?utm_source=gb-gplus-sharePatent US4801459 - Technique for drug and chemical delivery