ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
In this work an attempt to obtain a more compact artificial system for gas sensing,properly designed on a transducer, is presented. This novel device can be applied for a wideapplication range such as environmental, bio-medical, agriculture etc. fields. In the Nature, amucous layer covering olfactory receptor cells, selectively tunes chemical interactions amongodorous molecules and sensing system. An odor, in fact, is perceived only if it is able to crossmucus of nasal cavity. A proper hydrophobic Teflon-like overcoating tunes chemical interactions,humidity free, between odorous molecules and sensing system, miming mucus covering olfactoryreceptor cells. Here the latters were represented by doped polyaniline added of polyethylenoxide.The interacting surface has been enormously enhanced creating nanofibrous coatings byelectrospinning deposition technique. Such nanofibers can be compared with the olfactory ciliacovered by mucus. Few modifications of both overlayers and nanofibrous polymers can encouragethe developing of new chemical sensors for array sensor system generations. Surfaces analysis,electrical parameters and sensing properties of the double layers on interdigitated transducers havebeen investigated
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.58.91.pdf
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