1. Howard P. Isermann Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
2. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
3. Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
4. Biologics Process R&D, Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
5. Process Chromatography Division, Bio-Rad Laboratories, 6000 James Watson Drive, Hercules, California 94547, United States