Development of a novel multiplexed optoelectronic nose for analysis of volatile organic compounds

A novel multiplexed optoelectronic nose (opto-eN) has been developed based on an array of cross-reactive receptors and an optical detection system using surface plasmon resonance imaging. It is able to detect and analyze volatile organic compounds (VOCs) in the gas phase with a good sensitivity and selectivity. Based on pattern recognition, such an opto-eN is able to discern not only VOCs of different chemical families but also among the same family. Furthermore, after optimization, the system is very stable and reusable over at least three months with a good repeatability and reproducibility. Thus, this opto-eN is very promising for further analyses of more complex VOC mixtures with great potential for a wide range of applications.