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DeCS
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Descriptor English:
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Surface Plasmon Resonance
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Descriptor Spanish:
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Resonancia por Plasmón de Superficie
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Descriptor Portuguese:
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Ressonância de Plasmônio de Superfície
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Synonyms English:
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Plasmon Resonance, Surface
Plasmon Resonances, Surface
Resonance, Surface Plasmon
Resonances, Surface Plasmon
Surface Plasmon Resonances
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Tree Number:
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E05.196.890
E05.601.043.700
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Definition English:
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A biosensing technique in which biomolecules capable of binding to specific analytes or ligands are first immobilized on one side of a metallic film. Light is then focused on the opposite side of the film to excite the surface plasmons, that is, the oscillations of free electrons propagating along the film's surface. The refractive index of light reflecting off this surface is measured. When the immobilized biomolecules are bound by their ligands, an alteration in surface plasmons on the opposite side of the film is created which is directly proportional to the change in bound, or adsorbed, mass. Binding is measured by changes in the refractive index. The technique is used to study biomolecular interactions, such as antigen-antibody binding. |
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Indexing Annotation English:
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do not confuse with plasmon, extrachromosomal genetic material
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History Note English:
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99
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Allowable Qualifiers English:
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Record Number:
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33868
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Unique Identifier:
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D020349
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Occurrence in VHL:
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Similar:
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DeCS
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