1. Center for Biomolecular Sciences and Department of Pharmaceutical Sciences, University of Illinois at Chicago, 900 S. Ashland Avenue, Chicago, Illinois 60607, United States
2. Biophysics Core at Research Resource Center, University of Illinois at Chicago, 1100 S. Ashland Avenue, Chicago, Illinois 60607, United States
3. Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612, United States