1. Department of Chemistry and Physics, Arkansas State University, PO Box 419, Jonesboro, Arkansas 72467, United States
2. Arkansas Biosciences Institute and College of Agriculture, Arkansas State University, PO Box 639, Jonesboro, Arkansas 72467, United States
3. College of Engineering and Computer Science, Arkansas State University, PO Box 1740, Jonesboro, Arkansas 72467, United States