1. Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND 58102, USA
2. Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND 58102, USA
3. Deapartment of Physics, North Dakota State University, Fargo, ND 58102, USA
4. Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58102, USA
5. University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam