TEK Histo 2 Flashcards

1
Q

Microscopie Binoculaire

A

Grossissement X100 X400 X1000

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2
Q

Microscope optique a contraste de phase inverse

A

Indice de réfraction

Préparation non coloré et cellule vivante

Halo=artefact

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3
Q

Microscope a contraste de phase interférentielle

A

Suprime les artefacts en Halo

Donne une impression de relief

Cellule vivante

In Vitro

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4
Q

Microscope optique a fluorescence

A

Fluo
Résolution excellente

Mais Halo

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5
Q

Microscope confocal

A

Optique
Amélioration en MO
analyse 3D
Fluorescence inversés ou non inversés

Balayage laser (placement du fluo )
Diaphragme de détection ( captation du fluo )
Motorisation sur 3 axes de la platine
Acquisition numérique des images

200nm

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6
Q

Microscopie confocale a feuilles de lumière

A

Lumière Perpendiculaire a l’échantillon

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7
Q

Microscope confocal a balayage laser

A

Mono ou bi photon 160-180nm

A deux objectifs colinéaire 130nm

STED 40-80nm

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8
Q

MET

A

50nm
Jusqu’à 0,1nm

Réduction du champ de vision cellule morte

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9
Q

MEB

A

20nm
Moins bon que MET
3D

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10
Q

Microscope a effet tunnel

A

Champ de force
Échelle atomique
2 électrodes

Très contraignants

Surface conductrice et pas biologique

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11
Q

Microscope a force atomique AFM

A

Évolution de l’effet tunnel

Pointe très fine
Dégradé l’échantillon
Volume échantillon
Rhéologie

Temp d’analyse long ( 1-10 min )

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