Dr. Hyo-Jick Choi is a firm believer of the decisive role of innovative technologies in improving the quality of life. With this belief, he has dedicated his research career to engineer sustainable technologies, which are focused on resolving global issues in environment and health. His past research areas include development of new nanobiological systems and their applications in fabrication of engineering devices with life-like functionality, artificial cells, water purification membrane, carbon sequestration/biofuel production, and transdermal influenza vaccine delivery using microneedles