1. Bioplant; Hanmi Pharmaceutical Co.; Pyeongtaek 451-805 Korea
2. Graduate School of Life Sciences and Biotechnology; Korea University; Seoul 136-713 Korea
3. Department of Chemical and Biomolecular Engineering; Seoul National University of Science and Technology; Seoul 139-743 Korea
4. Convergence Institute of Biomedical Engineering and Biomaterials; Seoul National University of Science and Technology; Seoul 139-743 Korea