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MICROSCOPIE CONFOCALE [4 records]
Record 1 - internal organization data 2017-01-04
Record 1, English
Record 1, Subject field(s)
- Optics
- The Skin
Record 1, Main entry term, English
- confocal microscopy
1, record 1, English, confocal%20microscopy
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Confocal microscopy. Unlike "normal" microscopy, only a spot of a minimum size in the specimen is illuminated in confocal microscopy. To enable an image to be formed from this, the specimen must be scanned. The image of the spot is directed through a pinhole stop in an intermediate image plane. As a result, only light from the focal plane can reach the detector (a photomultiplier). All other (out-of-focus) planes are blocked out. This results in an "optical section". The images are stored electronically and displayed on a monitor. A series of optical sections can be recorded by moving a motor a slight distance along the z-axis each time an image has been recorded, after which the next image is then also recorded. Such a z-series permits the electronic reconstruction of the three-dimensional structure using suitable computer programs. The procedure, which is restricted to incident-light techniques, has completely revolutionized fluorescence microscopy in biology in particular. 2, record 1, English, - confocal%20microscopy
Record 1, French
Record 1, Domaine(s)
- Optique
- Appareil cutané
Record 1, Main entry term, French
- microscopie confocale
1, record 1, French, microscopie%20confocale
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La technique de microscopie confocale mise au point [...] pour l'imagerie cutanée in vivo est issue d'une adaptation du Tandem Scanning Microscope (TSM), un microscope à balayage optique en temps réel. Le principe confocal utilise la lumière blanche en mode réflexion et un disque rotatif pour donner une image nette dans la profondeur d'un tissu, en éliminant de l'image toutes les informations situées au-dessus et en dessous du plan focal. 2, record 1, French, - microscopie%20confocale
Record number: 1, Textual support number: 2 CONT
Un des aspects les plus intéressants de la microscopie confocale, outre son caractère non destructif, est sa rapidité de mise en œuvre; elle comble un fossé important entre la microscopie optique conventionnelle et la microscopie électronique. La localisation de molécules spécifiques, dans le contexte cellulaire, apporte d'importantes contributions à l'étude fonctionnelle des systèmes biologiques à différents niveaux d'organisation : subcellulaire, cellulaire, tissulaire ou organisme entier. L'utilisation de traceurs fluorescents très spécifiques permet de localiser in situ avec une résolution spatiale de l'ordre de 400 - 500 nanomètres, des composants macro-moléculaires tels que acides nucléiques et protéines, mais aussi de petites molécules telles que des peptides, lipides et même des ions. 2, record 1, French, - microscopie%20confocale
Record number: 1, Textual support number: 1 OBS
La microscopie confocale permet la localisation in situ d'une sonde fluorescente dans des cellules d'un spécimen d'une épaisseur de 10 mm à 50 mm selon certains auteurs (5 mm à 30 mm plus raisonnablement), sans sectionnement mécanique préalable. Son concurrent est le laser krypton (longueur d'onde) qui permet une excitation des fluorochromes situés dans le Vert (Texas-Red, Cyanin Blue). 3, record 1, French, - microscopie%20confocale
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-06-10
Record 2, English
Record 2, Subject field(s)
- Optics
- Biotechnology
Record 2, Main entry term, English
- whitelight confocal microscopy
1, record 2, English, whitelight%20confocal%20microscopy
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- white-light confocal microscopy 1, record 2, English, white%2Dlight%20confocal%20microscopy
correct
- white light confocal microscopy 1, record 2, English, white%20light%20confocal%20microscopy
correct
- confocal white-light microscopy 1, record 2, English, confocal%20white%2Dlight%20microscopy
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Laser scanning light-microscopy that focuses on a simple plane of light through a biological substance and allows for high-tech 30 images to be generated. 1, record 2, English, - whitelight%20confocal%20microscopy
Record 2, French
Record 2, Domaine(s)
- Optique
- Biotechnologie
Record 2, Main entry term, French
- microscopie confocale lumière blanche
1, record 2, French, microscopie%20confocale%20lumi%C3%A8re%20blanche
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Microscopie permettant les mesures 3D hautes résolutions, la caractérisation sans contact de surfaces à structure complexe, les mesures automatiques de grandes surfaces par recollement de vues ... et assurant la précision, la rapidité et la simplicité d'utilisation. 1, record 2, French, - microscopie%20confocale%20lumi%C3%A8re%20blanche
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2003-07-17
Record 3, English
Record 3, Subject field(s)
- Optics
- Scientific Measurements and Analyses
Record 3, Main entry term, English
- confocal laser scanning microscopy
1, record 3, English, confocal%20laser%20scanning%20microscopy
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- confocal scanning laser microscopy 2, record 3, English, confocal%20scanning%20laser%20microscopy
correct
- CSLM 2, record 3, English, CSLM
correct
- CSLM 2, record 3, English, CSLM
- laser scanning confocal microscopy 3, record 3, English, laser%20scanning%20confocal%20microscopy
correct
- LSCM 2, record 3, English, LSCM
correct
- LSCM 2, record 3, English, LSCM
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A laser scanning microscopy system that focuses on a single plane of light through a biological substance, allowing high-resolution, three-dimensional images to be built up. 4, record 3, English, - confocal%20laser%20scanning%20microscopy
Record number: 3, Textual support number: 1 CONT
Laser Scanning Confocal Microscopy (LSCM, also referred to as CSLM, Confocal Scanning Laser Microscopy) is now established as a valuable tool for obtaining high resolution images and 3-D reconstructions of a variety of biological specimens. In LSCM, a laser light beam is expanded to make optimal use of the optics in the objective. Through a x-y deflection mechanism this beam is turned into a scanning beam, focussed to a small spot by an objective lens onto a fluorescent specimen. The mixture of reflected light and emitted fluorescent light is captured by the same objective and (after conversion into a static beam by the x-y scanner device) is focused onto a photodetector (photomultiplier) via a dichroic mirror (beam splitter). The reflected light is deviated by the dichroic mirror while the emitted fluorescent light passes through in the direction of the photomultiplier. A confocal aperture (pinhole) is placed in front of the photodetector, such that the fluorescent light (not the reflected light!) from points on the specimen that are not within the focal plane (the so called out-of-focus light) where the laser beam was focussed will be largly obstructed by the pinhole. In this way, out-of-focus information (both above and below the focal plane) is greatly reduced. 2, record 3, English, - confocal%20laser%20scanning%20microscopy
Record 3, French
Record 3, Domaine(s)
- Optique
- Mesures et analyse (Sciences)
Record 3, Main entry term, French
- microscopie confocale à balayage laser
1, record 3, French, microscopie%20confocale%20%C3%A0%20balayage%20laser
correct, feminine noun
Record 3, Abbreviations, French
- MCBL 2, record 3, French, MCBL
correct, feminine noun
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Principe de la microscopie confocale à balayage laser (MCBL). Le rayon laser excitateur pénètre dans l'échantillon préalablement marqué par des fluorochromes [...], auparavant répertoriés et choisis en fonction de leurs propriétés à se fixer sur des molécules particulières d'une structure ou d'un objet d'intérêt. Lors de l'impact optique, il y a émission de rayons lumineux provenant de différents plans de la préparation. Grâce à un diaphragme variable («trou d'aiguille» - pinhole), il est possible de sélectionner les rayons émis par un seul plan de préparation et d'éliminer le signal provenant d'autres plans. Les rayons réfléchis sont filtrés en fonction de leur longueurs d'onde puis détectés par des photo-multiplicateurs. Le signal reçu est enfin converti en signal numérique, contribuant à la création d'une image [...] 2, record 3, French, - microscopie%20confocale%20%C3%A0%20balayage%20laser
Record number: 3, Textual support number: 1 OBS
Tous les champs d'application de la microscopie confocale à balayage laser : localisations intracellulaires par fluorescence (simple et double marquage), reconstitution 3D par fluorescence de structures cellulaires, hybridation in situ, cinétique de processus dans les cellules vivantes, états de surface de matériaux divers. 3, record 3, French, - microscopie%20confocale%20%C3%A0%20balayage%20laser
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2003-05-29
Record 4, English
Record 4, Subject field(s)
- Optics
- Chemistry
Record 4, Main entry term, English
- confocal laser scanning microscopy with 1-photon excitation
1, record 4, English, confocal%20laser%20scanning%20microscopy%20with%201%2Dphoton%20excitation
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- one-photon confocal laser scanning microscopy 2, record 4, English, one%2Dphoton%20confocal%20laser%20scanning%20microscopy
correct
- one-photon CLSM 3, record 4, English, one%2Dphoton%20CLSM
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Confocal laser scanning microscopy with 1-photon excitation ... became a practical technique with the introduction of the first commercially available models in the early 1980's. Laser scanning microscopes (LSM) with 2-photon excitation (2P-LSM) have been commercially available since 1997. 1, record 4, English, - confocal%20laser%20scanning%20microscopy%20with%201%2Dphoton%20excitation
Record number: 4, Textual support number: 2 CONT
Conventional one-photon confocal laser scanning microscopy (CLSM) often provides high resolution but is limited in sensitivity and spatial resolution by background flare noise resulting from "out-of-focus" fluorescence. 2, record 4, English, - confocal%20laser%20scanning%20microscopy%20with%201%2Dphoton%20excitation
Record 4, Key term(s)
- 1-photon CLSM
- 1-photon confocal laser scanning microscopy
Record 4, French
Record 4, Domaine(s)
- Optique
- Chimie
Record 4, Main entry term, French
- microscopie confocale à balayage laser à excitation monophotonique
1, record 4, French, microscopie%20confocale%20%C3%A0%20balayage%20laser%20%C3%A0%20excitation%20monophotonique
proposal, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- microscopie confocale à balayage laser à un photon 1, record 4, French, microscopie%20confocale%20%C3%A0%20balayage%20laser%20%C3%A0%20un%20photon
proposal, feminine noun
- microscopie confocale à balayage laser à excitation à un photon 1, record 4, French, microscopie%20confocale%20%C3%A0%20balayage%20laser%20%C3%A0%20excitation%20%C3%A0%20un%20photon
proposal, feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
La première fonction de l'excitation laser est d'arracher un électron à l'agrégat. En effet, la séparation en masse des espèces neutres, nécessaire à toute étude d'agrégats, ne peut se faire que si l'agrégat est ionisé. Ceci peut se faire de diverses manières: excitation à un photon, excitation à deux photons résonnante (R2PI) ou non, dépendant du type d'agrégats et de l'expérience réalisée. 2, record 4, French, - microscopie%20confocale%20%C3%A0%20balayage%20laser%20%C3%A0%20excitation%20monophotonique
Record number: 4, Textual support number: 2 OBS
Nous discuterons [...] des divers avantages de la technique biphotonique par rapport à son homologue en excitation monophotonique : le microscope confocal de fluorescence. Dans une deuxième partie, nous décrirons brièvement les différentes techniques d'imagerie à haute résolution spatiale de la fluorescence utilisées en microscopie confocale ou biphotonique de fluorescence et nous introduirons le principe des deux techniques d'analyse dynamique de l'émission de la fluorescence que nous avons développées dans le cadre de notre projet : la microscopie de corrélation de fluorescence et l'imagerie de temps de vie de fluorescence. 3, record 4, French, - microscopie%20confocale%20%C3%A0%20balayage%20laser%20%C3%A0%20excitation%20monophotonique
Record 4, Spanish
Record 4, Textual support, Spanish
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