1. Center for Micro-Engineered Materials, The University of New Mexico, Albuquerque, New Mexico 87131, United States
2. Self-Assembled Materials Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
3. Department of Chemical and Nuclear Engineering, The University of New Mexico, Albuquerque, New Mexico 87131, and Sandia National Laboratories, Albuquerque, New Mexico 87106, United States