1. Department of Chemistry; Graduate School of Science and Engineering, Saitama University; 255 Shimookubo Sakura-Ku Saitama 338-8570 Japan
2. Department of Engineering Geoecology; Laboratory of Engineering NanoBiotechnology, University of Mining and Geology “St. Ivan Rilski”; Bulgaria
3. Department of Infectious Pathology; Hygiene, Technology and Control of Food Stuffs of Animal Origin, Faculty of Veterinary Medicine, University of Forestry; Sofia Bulgaria
4. Materials Research Laboratory; University of Nova Gorica; Nova Gorica SI-5000 Slovenia