1. Department of Chemical and Biomolecular Engineering, University of Akron, Akron, OH 44325-3906
2. Syngenta Crop Protection, Inc., St. Gabriel, LA 70776
3. Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325-3906. Phone: (330)972-7252; Fax: (330)972-5856; E-mail: Ju@uakron.edu