Title :
Analysis of biological and artificial chemical sensor repsonses to odor mixtures
Author :
Katta, Nitesh ; Saha, D. ; Leong, Kevin ; Wu, Junyong ; Gandra, Naveen ; Wei-Ning Wang ; Banerjee, Prithu ; Singamenni, Srikanth ; Biswas, Priyanka ; Raman, Baranidharan
Author_Institution :
Washington Univ. in St. Louis, St. Louis, MO, USA
Abstract :
Here, we report our findings on the characterization of olfactory receptor neuron (ORN) responses in the insect antenna to various analytes and their combinations. We investigated the relationship between sensory neuron responses to a binary odor mixture with their responses to the component cues. We observed that sensory neuron responses to stimulus blends resulted in simple combinations of component activities. Not only spike counts, but also temporal response motifs evoked by component odors were combined. We then examined how a binary mixture response relates to the component signals in a miniaturized chemical sensor array. The sensor array comprised of two different sensing films: reduced graphene oxide and gold nanoparticle chains functionalized with p-aminothiophenol. Our results reveal that several response properties observed in various types of chemical sensors are strikingly similar. Hence, these results provide an important foundation to develop a truly neuromorphic chemical sensing system.
Keywords :
antennas; bioelectric phenomena; biomimetics; chemioception; electronic noses; gas mixtures; gold; graphene; nanobiotechnology; nanoparticles; nanosensors; neurophysiology; organic compounds; sensor arrays; thin film sensors; CO-Au; ORN response; artificial chemical sensor response analysis; binary mixture response; binary odor mixture; biological sensor repsonse analysis; component activity; component signal; insect antenna; miniaturized chemical sensor array; nanoparticle chain functionalization; neuromorphic chemical sensing system; olfactory receptor neuron; p-aminothiophenol; sensing film; sensory neuron response; stimulus blend; Arrays; Chemicals; Films; Gold; Olfactory; Sensors;
Conference_Titel :
SENSORS, 2013 IEEE
Conference_Location :
Baltimore, MD
DOI :
10.1109/ICSENS.2013.6688196