1. Biomaterials
and Interface Tissue Engineering Laboratory, Department of Biomedical
Engineering, Columbia University, 1210 Amsterdam Avenue, 351 Engineering
Terrace, MC 8904, New York, New York 10027, United States
2. Structure−Function
Imaging Laboratory, Department of Electrical Engineering, Columbia University, 500 W. 120th Street, 1300 S. W. Mudd Building, MC 4712, New York, New York 10027, United States
3. Analytical
Microscopy Laboratory, Hospital for Special Surgery, 535 East 70th
Street, New York, New York 10021, United States