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)

Lexicographical Neighbors of Scanning Tunnelling Microscopy

scandiums
scannable
scanned
scanner
scanner
scanners
scanning
scanning
scannings
scanning electron microscope
scanning electron microscopy
scanning equalization radiography
Scanning Probe Microscopy
scanning speech
scanning transmission electron microscopy
scanning tunnelling microscopy (current term)
scanogram
scans
scans
scansion
scansions
scansores
scansorial
scant
scant
scant(p)
scanted
scanter
scantest
scantier

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