Apparatus and method for detecting microorganisms
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United States of America Patent
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Oct 31, 2006
Grant Date -
Sep 4, 2003
app pub date -
Feb 26, 2003
filing date -
Mar 4, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to the fast detection of microorganisms, i.e. of bacteria, fungi, cells and other organisms, making use of methods and apparatuses coming from nanotechnology. According to the present invention, such organisms are detected using micromechanical sensor means known from many physical and chemical applications. One or more micromechanical cantilever sensors are either coated with a nutritive medium or at least partially built from a nutritive medium. By depositing a microorganism on the cantilever surface, preferably in a targeted way and in a controlled dosage, a 'biological reaction' is started. This reaction results in a change of the mechanical and/or electrical properties of the sensor, i.e. the cantilever. These changes are determined, preferably at certain points in time, and thus allow the detection and detailed observation of the applied microorganism.
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