S-24 Development of Novel Cell Culture Systems and Their Application to Pharmaceutical Research S24-1 Development of novel culture system using nano-biotechnology S24-2 Development of novel culture system for regulation of hepatocyte function S24-3 Cell Network-based Drug Discovery using On-chip Cellomics Technology S24-4 HTA technologies based on biosensor and engineered cell S24-5 Development of novel cell culture systems utilizing the advantages of collagen vitrigel membrane