This conference encompasses all aspects related to the research, development and chemical application of optical sensors and biosensors. Scientists are invited to submit their original contributions in one or more of the following topics: New material or principles for optical sensing, Novel opto-electronic instrumentation and components, Integrated optical systems, Micro-, nano- and multisensors, Sensor arrays for genomics and proteomics, Applications of optical sensors in environmental monitoring, process control, food analysis and medical diagnosis, and Commercial developments and markets.