1. Charles University; Department of Analytical Chemistry; Prague 128 4 Czech Republic
2. Department of Chemistry, 578 S. Shaw Lane; Michigan State University; East Lansing, Michigan 48824-1226 United States
3. Department of Biological Sciences, 1 Camino Santa Maria; St. Mary's University; San Antonio, Texas 78228 United States
4. Fraunhofer Center for Coatings and Diamond Technologies, 1449 Engineering Research Center; Michigan State University; East Lansing, MI 48823