1. School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331-2072, United States
2. Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331-4003, United States
3. Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901-8554, United States
4. Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97403-1253, United States
5. Hewlett Packard Company, 1000 Northeast Circle Boulevard, Corvallis, Oregon 97330-4239, United States