1. Department
of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
2. Drug
Product Development, Amgen Inc., Seattle, Washington 98119, United States
3. Department
of Molecular, Cellular, and Medical Biosciences, University of New Hampshire, Durham, New Hampshire 03824, United States
4. National Institutes of Standards and Technology Center for Neutron Research, Gaithersburg, Maryland 20899, United States