Nanosys has appointed Matthew Murphy vice president of intellectual property, the Palo Alto-based nanotechnology company said last week. Prior to joining Nanosys, Murphy served as vice president for intellectual property at Caliper Technologies, where he represented the company for six years and built a portfolio of 500 patents and patent applications. In a previous position, Murphy worked at the law firm Townsend, Townsend, and Crew, in the chemical and biotechnology practice group.