1. Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50012, United States
2. Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
3. Department of Chemistry and Biochemistry, National Chung Cheng University, Chiayi 62106, Taiwan
4. Department of Mechanical Engineering, Iowa state University, Ames, Iowa 50012, United States
5. Department of Obstetrics and Gynecology, Carver College of Medicine, University of Iowa, Hospitals & Clinics, Iowa City, Iowa 52242, United States