202 · CHEMICAL SENSORS: FUNDAMENTALS. VOLUME 1: GENERAL APPROACHES the dimethyl phthalate plasticizer improve response diversity of the sensing films to H 2 O and ACN. Overall, this study demonstrated that this RFID-based sensing approach permits rapid, cost-effec- tive combinatorial screening of dielectric properties of sensing materials. As was pointed out earlier (Potyrailo et al. 2003d), in general, an increase of the level of environmental stress may be problematic if the correlation with traditional test methods is lost. To avoid this situation, it will be critical to plan detailed accelerated-aging, high-throughput experiments with positive and negative controls. 8. SUMMARY AND OUTLOOK Combinatorial technologies in materials science have been successfully developed by research groups in academia and governmental laboratories that have overcome the entry barrier of dealing with new and emerging aspects of materials research, such as automation and robotics, computer programming, informatics, and materials data mining. The main driving forces for combinatorial materials science in industry include broader and more detailed exploration of materials and process parameters and faster time to market. Industrial research laboratories working on new catalysts and inorganic luminescent materials were among the first adopters of combinatorial methodologies in industry. The classical ex- ample, the effort of Mittasch, who spent 10 years (over 1900­1909) conducting 6500 screening experi- ments with 2500 catalyst candidates to find a catalyst for industrial ammonia synthesis (Ertl, 1990) will