1. Biotechnology Department, Addis Ababa Science, and Technology University, P. O. Box 1647, Addis Ababa, Ethiopia
2. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
3. National Synchrotron Radiation Research Center, Hsinchu, Taiwan
4. Industrial Chemistry Department, Addis Ababa Science and Technology University, P. O. Box 1647, Addis Ababa, Ethiopia
5. Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, P. O. Box 1647, Addis Ababa, Ethiopia
6. Bioprocess and Biotechnology Center of Excellence, Addis Ababa Science and Technology University, P. O. Box 1647, Addis Ababa, Ethiopia