1. Mechanical Engineering Technology Program, Department of Engineering Technology, College of Technology, University of Houston, Houston, Texas 77204, United States
2. Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Chihuahua 31136, Chih, México
3. Materials Science and Engineering, Engineering, University of Houston, Houston, Texas 77204, United States
4. Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
5. Biotechnology Program, Department of Engineering Technology, College of Technology, University of Houston, Sugarland, Texas 77479, United States