1. Center for Security Printing and Anti-Counterfeiting Technology, 501 E. St. Joseph Street, Rapid City, South Dakota 57701, United States
2. Materials
Engineering and Science Program, South Dakota School of Mines and Technology, 501 E. St. Joseph Street, Rapid City, South Dakoakota 57701, United States
3. Department
of Chemistry, University of South Dakota, 414 E. Clark Street, Vermillion, South Dakota 57069, United States
4. Department of Biology and Chemistry, Southern University & Agricultural and Mechanical College, P.O. Box 12566, Baton Rouge, Louisiana 70813, United States