[1] Univ Chicago, Inst Mol Engn, Chicago, IL 60637 USA
[2] IBM Res Almaden, San Jose, CA 95120 USA
[3] Univ Toledo, Dept Chem & Biochem, Toledo, OH 43606 USA
[4] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
[5] Univ Calif Santa Cruz, Jack Baskin Sch Engn, Santa Cruz, CA 95064 USA