Medical Definition of Scanning tunnelling microscopy

1. A form of ultra high resolution microscopy of a surface in which a very small current is passed through a surface and is detected by a microprobe of atomic dimnensions at its tip that scans the surface by use of a piezodrive. In the simplest form the current transferred to the probe is recorded as an indication of the contours of molecules on the surface above the local plane. In more complex forms feedback is used to hold the probe at a constant difference and the signal in the feedback loop indicates the contours of the molecule. Capable of resolving single atoms and known to work for nonconducting molecules as well as conducting ones. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)



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Lexicographical Neighbors of Scanning Tunnelling Microscopy

scannable
scanned
scanner
scanners
scanning
scanning electron microscope
scanning electron microscopes
scanning electron microscopy
scanning equalization radiography
scanning speech
scanning transmission electron microscope
scanning transmission electron microscopes
scanning transmission electron microscopy
scanning tunneling microscope
scanning tunneling microscopes
scanning tunnelling microscopy (current term)
scannings
scanno
scannos
scanogram
scans
scansion
scansions
scanslation
scansores
scansorial
scant
scant(p)
scanted
scanter

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