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Descriptor English: Microscopy, Scanning Tunneling
Descriptor Spanish: Microscopía de Túnel de Rastreo
Descriptor microscopía de barrido de efecto túnel
Entry term(s) microscopía de efecto túnel
Scope note: Tipo de microscopía de sonda de barrido en donde una aguja conductora muy afilada barre sólo unos pocos angstroms por encima de la superficie de la muestra. Se mide la pequeña corriente de túnel que fluye entre la muestra y la punta de la aguja, y a partir de ella se producen topogramas tridimensionales. Debido a la mala conductividad electrónica de la mayoría de las muestras biológicas, ésta se recubre con una fina capa metálica.
Descriptor Portuguese: Microscopia de Tunelamento
Descriptor French: Microscopie à effet tunnel
Entry term(s): Microscopies, Scanning Tunneling
Microscopies, Scanning Tunnelling
Microscopy, Scanning Tunnelling
Scanning Tunneling Microscopies
Scanning Tunneling Microscopy
Scanning Tunnelling Microscopies
Scanning Tunnelling Microscopy
Tunneling Microscopies, Scanning
Tunneling Microscopy, Scanning
Tunnelling Microscopies, Scanning
Tunnelling Microscopy, Scanning
Tree number(s): E01.370.350.515.666.500
E05.595.666.500
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D016252
Scope note: A type of scanning probe microscopy in which a very sharp conducting needle is swept just a few angstroms above the surface of a sample. The tiny tunneling current that flows between the sample and the needle tip is measured, and from this are produced three-dimensional topographs. Due to the poor electron conductivity of most biological samples, thin metal coatings are deposited on the sample.
Allowable Qualifiers: CL classification
EC economics
ES ethics
HI history
IS instrumentation
MT methods
SN statistics & numerical data
ST standards
TD trends
VE veterinary
Previous Indexing: Microscopy, Electron, Scanning (1987-1990)
Public MeSH Note: 91
History Note: 91
Related: Microscopy, Atomic Force MeSH
DeCS ID: 29048
Unique ID: D016252
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1991/01/01
Date of Entry: 1990/05/07
Revision Date: 2004/07/07
Microscopy, Scanning Tunneling - Preferred
Concept UI M0024822
Scope note A type of scanning probe microscopy in which a very sharp conducting needle is swept just a few angstroms above the surface of a sample. The tiny tunneling current that flows between the sample and the needle tip is measured, and from this are produced three-dimensional topographs. Due to the poor electron conductivity of most biological samples, thin metal coatings are deposited on the sample.
Preferred term Microscopy, Scanning Tunneling
Entry term(s) Microscopies, Scanning Tunneling
Microscopies, Scanning Tunnelling
Microscopy, Scanning Tunnelling
Scanning Tunneling Microscopies
Scanning Tunneling Microscopy
Scanning Tunnelling Microscopies
Scanning Tunnelling Microscopy
Tunneling Microscopies, Scanning
Tunneling Microscopy, Scanning
Tunnelling Microscopies, Scanning
Tunnelling Microscopy, Scanning



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