Epifluorescence Microscopy
The platform has two widefield microscopes for the acquisition of material fixed in fluorescence, a widefield microscope equipped with a colour camera, a routine fluorescence microscope for the observation of living cells and an analysis computer equipped with Fiji and Icy software. This equipment is reserved for the internal use of UMR7216 members.
Artistic image of jellyfish, referring to the bioluminescent jellyfish from which GFP (Green Fluorescent Protein) is extracted that has revolutionised the world of imaging.
© Image par Carol-Ann Bussières de Pixabay
Leica DMI-6000B "Oldelaf"
Inverted epifluorescence microscope
X, Y and Z piloted
Filters and objectives piloted
Camera:
Camera CCD -30ºC regulated
CoolSNAP HQ2 14bits
Image size: 1392×1040 pixels
Pixel size: 6.45 x 6.45μm
Illumination:
Visible light (halogen)
CoolLED pE-300 White Series Fluorescent Lamp (LED, >25000h)
Acquisition software:
Metamorph with Multi-Dimensional Acquisition module
Objectives:
| Obj Mag. | N.A | Quality | Transmission Contrast | Imm. | Pixel size (binning 1) | Max resolution at 488nm |
| 10X | 0,25 | N PLAN | PH1 | Air | 0,645 μm | 1191 nm |
| 20X | 0,35 | N PLAN | PH1 | Air | 0,3225 μm | 850 nm |
| 40X | 0,6 | HCX PL Fluotar | PH2 | Air | 0,161 μm | 496 nm |
| 40X | 1,25-0,75 | HC PL APO CS | – | Oil | 0,161 μm | 229 nm |
| 63X | 1,40 – 0.60 | HCX PL APO | – | Oil | 0,102 μm | 213 nm |
| 100X | 1,40 | HCL PL APO CS | PH3 | Oil | 0,0645 μm | 213 nm |
Filters :
| Filter name | Colour | Excitation Filter BP | Dichroic Mirror | Suppression Filter BP |
| A4 | Blue | 360/40 | 400 | 470/40 |
| GFP | Green | 470/40 | 500 | 525/50 |
| Y3 | Cy3 (orange) | 545/40 | 565 | 610/75 |
| TX2 | Red | 560/40 | 595 | 645/75 |
| Y5 | Cy5 (Far red) | 620/60 | 660 | 700/75 |
| Analyzer cube | – | – | – | Analyzer |
Leica DMI-6000B "Lenny"
Inverted epifluorescence microscope
Controlled in X, Y and Z
Controlled filters and lenses
Camera:
Camera CCD -12ºC regulated
Teledyne Photometrics RETIGA R6
Image size: 2688×2200 pixels
Pixel size: 4.54 x 4.54μm
Illumination:
Visible light (halogen)
CoolLED pE-300 White Series Fluorescent Lamp (LED, >25000h)
Acquisition software:
Metamorph with Multi-Dimensional Acquisition module
Objectives:
| Mag. | N.A | Quality | Trans Contrast | Imm. | Pixel size (binning 1) | Max resolution at 488 nm |
| 2,5X | 0,07 | HC FL PLAN | – | Air | 1.816 μm | 4,2 µm |
| 20X | 0,7 | HCL PL APO CORR | – | Oil/Gly | 0,227 μm | 425 nm |
| 40X | 1,30 | HC PL APO | – | Oil | 0,1135 μm | 229 nm |
| 63X | 1,40 | HCX PL APO CS | PH3 | Oil | 0,072 μm | 212 nm |
| 100X | 1,40-0,7 | HCX PL APO | – | Oil | 0,0454 μm | 212 nm |
Filters :
| Name | Colour | Excitation Filter BP | Dichroic Mirror | Suppression Filter BP |
| XF131 | Blue | 387/28 | 410 | 450/65 |
| QMAX green | Green | 450-490 | 500 | 510-560 |
| N3 | Cy3 (orange) | 546/12 | 565 | 600/40 |
| TX2 | Red | 560/40 | 595 | 645/75 |
| Far Red | Cy5 | 620-60 | 660 | 700-75 |
| Analyzer cube | – | – | – | Analyzer |
Leica DM IL LED (Live)
Inverted epifluorescence microscope
Camera:
Camera CCD -60ºC regulated
Hamamatsu digital camera C4742-98-24ERG 12 or 14 bits
Image size: 1344×1024
Pixel size: 6.45 x 6.45μm
Illumination:
Visible light (halogen)
Leica fluorescent lamp (Mercury Halides – 3000h max)
Objectives:
| Mag. | N.A | Quality | Transmission Contrast |
Imm. | Pixel size (binning 1) |
Max resolution at 488 nm |
| 10X | 0,25 | N PLAN | PH1 | Air | 0,645 μm | 1,2 µm |
| 20X | 0,35 | N PLAN | PH1 | Air | 0,322 μm | 850 nm |
| 40X | 0,55 | CORR | PH2 | Air | 0,161 μm | 541 nm |
Filtres :
| Name | Colour | Excitation Filter BP | Dichroic Mirror | Suppression Filter BP |
| B/G/R | Blue/Green/Red | 420/30 ; 495 /15 ; 570/20 | 415 ; 510 ; 590 | 465/20 ; 530 /30 ; 640/40 |
| GFP ET | Green | |||
| TX ET | Red |
Leica DMRA2 (Color)
Upright epifluorescence microscope
Controlled in X, Y and Z
Camera:
CCD digital color camera 5Mpixels Leica DFC 450C cooled (Δ -20ºC compared to ambient)
Image size: 2560×1920
Pixel size: 3.4 x 3.4μm
Illumination:
Visible light (halogen)
Fluorescent lamp not installed
Objectives:
| Mag. | N.A | Quality | Transmission Contrast |
Imm. | Pixel size (binning 1) |
Max resolution at 488 nm |
| 10X | 0,30 | HC PL Fluotar | – | Air | 0,34 μm | 992 nm |
| 20X | 0,50 | HCX PL Fluotar | – | Air | 0,17 μm | 595 nm |
| 40X | 0,75 | HCX PL Fluotar | – | Air | 0,085 μm | 397 nm |
| 100X | 1,40-0,7 | HCX PL APO CS | – | Oil | 0,034 μm | 212 nm |
Workstation "Angus"
A workstation for image analysis is available. This workstation is equipped with the free software FIJI, IMAGEJ, ICY.
Read more
New research article on how chromatin marking governs DNA damage segregation in mitosis
In this paper, we uncover a damaged chromatin marking mechanism that drives the non-random segregation of UV damage through mitosis with potential consequences on daughter cell fate. Thus, we reveal that chromatin alterations impinge on genome stability not only by...
Welcome to Julia
Julia Roche Dupuy joined the lab for her second year Master's internship. Julia Roche Dupuy Second year Master's student À lire aussi
Welcome Caroline to our team!
We're excited to have Caroline joining Dr. Ait-si-Ali's team! She comes to us as an M2 student from the GENE2 master's program at Université Paris-Saclay. Working with Dr. Guillaume Velasco, Caroline will study the regulation of nuclear stiffness by H3K9...
Welcome Minh to Slimane Ait-si-ali’s team!
We are delighted to welcome Mynh, an M2 student from the GENE2 master's program at Université Paris-Saclay, to Dr. Ait-si-Ali's team. Mynh will be investigating the role of SETDB1 in Duchenne muscular dystrophy phenotype development.