A Roman University team claims to have invented an electronic nose so
sensitive that it can detect early forms of tumours and other illnesses,
including impending heart attacks, by "sniffing" a person's breath, sweat
or urine. Called the Libra Nose, this small device, was developed by
Prof Arnaldo D'Amico with Corrado Di Natale and Alessandro Mantini
of Rome University (at Tor Vergata).
http://www.technobiochip.com/nose_en.htm
http://pendragon.eln.uniroma2.it/
It works on the basis that illnesses produce chemical changes in the human
organism which while not detectable to the senses, emit different odours.
By being trained to recognise sample smells, the instrument would soon
be able to detect a whole range of illnesses, scientists said.
Prof D'Amico, a specialist in electronic sensors, said that the instrument
was now being used in experiments in order to build up a dictionary of
relevant smells.
As a result Libra Nose would be able to precisely detect early signs of
illnesses such as lung cancer before any other form of test.
The method could also be used to track the evolution of an illness,
and to detect illnesses in newborn babies.
"We are comparing the breath of groups of people afflicted with
different illness, with that of people who are well," Prof A'Amico said.
"The outcome will be a series of chemical photographs [by means
of some chemio-opto-coupling device] revealing different characteristics,
according to the condition of the human organism.
Prof D'Amico said that the device could also be used in the study of
dietetics and sport, and by a woman to check her hormone changes
and periods of fertility with precision.
But, as you can see, the LibraNose is specialized in testing (and tasting?)
wines. [They told me that this device, due to very complex memories
and neural nets, is now capable of recognize a 1992 Brunello wine
among others Brunello.]
http://www.area.fi.cnr.it/r&f/n13/sensori2.htm
http://www.bbb.caltech.edu/compneuro/cneuro97/0064.html
1. Gardner J.W. and Bartlett P.N. 1994. Brief history of electronic nose.
Sensors and Actuator B, 18: 211-220.
2. Winquist F.; Hornsten E.G.; Sundgren H. and Lundstrom I. 1993.
Performance of an electronic nose for quality estimation of ground meat.
Meat Sci Technol 4: 1493-1500.
3. Bourrounet B., Talou T. and Gaset A. 1995. Application of a
multigas-sensor device in the meat industry for boar-taint detection.
Sensors and Actuators B 26-27: 250-254.
4. Berdague J.L. and Talou T. 1993. Exsamples of semiconductor gas sensors
applied to meat products. Sci. Aliments 13: 141-148.
5. Scweizer-Berberich P.M.; Vaihinger S. and Gopel W. 1994.
Characterisation of food freshness with sensor array.
Sensors and Actuators B 18: 282-290.
6. Winquist F.; Sundgren H. and Lundstrom I. 1995. A practical use of
electronic nose: quality estimation of cod fillet bought over the counter.
In: Digest of Technical Papers, 8th International Conference on
Solid-State Sensors and Actuators and Eurosensors IX (vol.1).
Royal Swedish Academy of Engineering Sciences, IVA, Stockholm,
Sweden, pp 695-698.
7. Pearce T.C.; Gardner J.W.; Friel S.; Bartlett P.N. and Blair N. 1993.
Electronic nose for monitoring the flavor of beers. Analyst 118: 371-377.
8. Borjesson T.; Eklov T.; Jonsson A.; Sundgren H. and Schnurer J. 1996.
Electonic nose for odor classification of grains. Analytical Techniques
and Instrumentation, 73 (4): 457-461.
9. http://www.foodproductdesign.com/archive/1995/0695QA.html
This archive was generated by hypermail 2b30 : Mon May 28 2001 - 09:56:40 MDT