Condensed
Matter & Surface Sciences
COLLOQUIUM
Laszlo B. Kish
Fluctuation-Enhanced
Sensing and Prompt Identification of Bacteria
Recently, a new type of
chemicals sensing method has been proposed and developed where, out of the
usual sensor signal, the small stochastic signal components are also used to
gain chemical information. It turns out that the stochastic component offers
much more sensing information than the average signal because it is related to
the nanoscale dynamical interaction between the
chemical agent and the sensor material or structure. A biological version of
the same principle, combined by using phage-bacterium reactions, serves as a
tool for prompt identification of bacteria. Bacteria are identified in a less
than 5 minutes time window with great selectivity.