1. Ph.D. Candidate, Dept. of Chemical and Biological Engineering, Univ. of British Columbia, Vancouver, BC, Canada V6T 1Z3.
2. Research Associate, Dept. of Chemical and Biological Engineering, Univ. of British Columbia, Vancouver, BC, Canada V6T 1Z3.
3. Professor, Dept. of Chemical and Biological Engineering, Univ. of British Columbia, Vancouver, BC, Canada V6T 1Z3 (corresponding author).