an experimental biomimetic platform for artificial olfaction一个实验性的仿生人工嗅觉的平台.pdfVIP

An Experimental Biomimetic Platform for Artificial Olfaction 1 1 2 1 3 Corrado Di Natale *, Eugenio Martinelli , Roberto Paolesse , Arnaldo D’Amico , Daniel Filippini , ¨ 3 Ingemar Lundstrom 1 Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy, 2 Department of Chemical Science and Technology, University of Rome Tor Vergata, ¨ ¨ Rome, Italy, 3 Department of Physics, Chemistry and Biology, Linkoping University, Linkoping, Sweden Abstract Artificial olfactory systems have been studied for the last two decades mainly from the point of view of the features of olfactory neuron receptor fields. Other fundamental olfaction properties have only been episodically considered in artificial systems. As a result, current artificial olfactory systems are mostly intended as instruments and are of poor benefit for biologists who may need tools to model and test olfactory models. Herewith, we show how a simple experimental approach can be used to account for several phenomena observed in olfaction. An artificial epithelium is formed as a disordered distributed layer of broadly selective color indicators dispersed in a transparent polymer layer. The whole epithelium is probed with colored light, imaged with a digital camera and the olfactory response upon exposure to an odor is the change of the multispectral image. The pixels are treated as olfactory receptor neurons, whose optical properties are used to build a convergence classifier into a number of mathematically defined artificial glomeruli. A non-homogen