1. Department of Chemical and Materials Engineering; New Jersey Institute of Technology; Newark NJ 07102 USA
2. Engineering Research Center of Cell & Therapeutic Antibody; Ministry of Education, School of Pharmacy; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
3. Center for Nanomedicine and Department of Anesthesiology; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02115 USA