NanoSphere Health Sciences INC. announced that the board of directors has appointed Dr. Mark Percival to lead the company as CEO, succeeding Robert E. Sutton who is retiring. Mr. Sutton has acted as Chairman and Chief Executive Officer since 2013, after co-founding NanoSphere with Chief Science Officer Dr. Richard Kaufman, and will continue in his role as Chairman of the Board of Directors. Dr. Percival has extensive experience in the healthcare field across two continents and has led important innovations for more than three decades.