Fluorescence

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http://www.nature.com/focus/cellbioimaging/content/images/ncb1032-f3.jpgJ Cell Sci. 2007 Dec 15;120(Pt 24):4247-60.Advances in fluorescent protein technology.Shaner NC, Patterson GH, Davidson MWPA-GFP: photoactivation (PA) none->greenKaede: green-> red photoconversion (PC)irreversible; tetrameric and hard to coupleto biological samplesKindling red: none->red PA upon greenlight (less damage)Dronpa: on-off photoswitchable protein –490nm ->off / 400nm ->onDendra2: monomeric; green->red PC; byblue light (also for imaging unconverted!)© Josef Gotzmannhttp://www.olympusconfocal.com/applications/fpcolorpalette.html
Superresolution Ii.e. breaking the __________-limit diffraction of a microscopephysicallymathematicallyREversible Saturable OpticaL<strong>Fluorescence</strong> Transitions(STED, GSD, SSIM, …)PALMSTORM4-PiNear-Field
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Praktikum zur Fluoreszenz- undKonfo
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Types of Light• Monochromatic•
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Lenses, Focus and AberrationsReason
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Types of microscopes andIlluminatio
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ObjectivesDipping objectives-physio
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Resolution• Definition: the small
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Resolution!!!!!Magnification identi
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Counts for transmitted and reflecte
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Depth of FieldThe axial range, thro
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Detection Systems Overviewhttp://bi
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DetectionDigital Cameras: Photons e
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Imaging - Triangle of Frustration©
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FluorescenceStokes (1852) - Jablons
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Principle of Fluorescence• Molecu
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Quantum Efficiency• Only emitted
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Fluorescent Dyes• Commercially av
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Organelle Lights ORGANELLESMitochon
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Quantum Dots“Whatever hue want”
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IMMUNOFLUORESCENCE-MICROSCOPYIndire
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FIXIERUNG:variable-should be suited
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PERMEABILISIATION:For antibody diff
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• ProLong is good for Alexa dyes
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FLUORESCENCE MICROSCOPY
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Light Sources / 2Laser• Light amp
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Longpassfiltere.g. Longpass 420:Num
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Bandpassfiltere.g.: Bandpass 465/70
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Full Cube assembly Bandpass31001 (C
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Problem 2: cross emission (emission
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Pseudo-Confocal Microscopy - Struct
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Different grids - Differentsectioni
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Drawbacks - Troubleshooting• Phot
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DeconvolutionLimitations to the res
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Literature• J.Pawley, Handbook of
Page 70: Confocal Microscopywhat is differen
Page 73 and 74: Confocal: Functional ElementsDetect
Page 75 and 76: The Pinhole I• Light from below-f
Page 77 and 78: The Pinhole IIIA pinhole of 1 airy
Page 79 and 80: Confocal Overview II• A point lig
Page 81 and 82: Laser II - How are they used?• La
Page 83 and 84: Area Scanning - Point by Point
Page 85 and 86: Optics I: Overview
Page 87 and 88: Optics II: Selecting wavelengthsFil
Page 89 and 90: Confocal Overview IIIno interferenc
Page 91 and 92: Configurations - Zeiss LSM510-71028
Page 93 and 94: Live „Confocal“ - Many Pinholes
Page 95 and 96: Confocal Spinning DiscBeams 1Illumi
Page 97 and 98: Multiphoton MicroscopyPulsed lasers
Page 99 and 100: What can you do?Z- stack including
Page 101 and 102: Z-stack: Reducing Dimensions
Page 103 and 104: Z-stack: Reconstruction• X/Y/Z im
Page 105 and 106: Multicolor Labeling
Page 107 and 108: Problem II: cross- emissionWhen emi
Page 109 and 110: The Problems: How to they look like
Page 111 and 112: Spectral Imaging
Page 113 and 114: F-techniques - methodology
Page 115 and 116: iFRAP
Page 117 and 118: “Optical Highlighters”PHOTOACTI
Page 119: Photoactivation (and yet another F-
Page 123 and 124: Superresolution using Fitting Algor
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Fluorescence

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