1. A. E. Arbuzov Institute of Organic and Physical Chemistry; Kazan Scientific Center of Russian Academy of Sciences; Arbuzov str., 8 420088 Kazan Russia
2. Kazan Federal University; Kremlevskaya str., 18 420008 Kazan Russia
3. Biomedical Imaging Center of the Beckman Institute for Advanced Science and Technology; University of Illinois at Urbana-Champaign; IL61801 USA
4. Department of Bioengineering; University of Illinois at Urbana-Champaign; IL61801 USA
5. Center for Interdisciplinary Magnetic Resonance; National High Magnetic Field Laboratory; Florida State University; Tallahassee, FL 32310 USA