Bio-Rad Radiance 2100
Location: MRC Building, Room 1.20B
A Bio-Rad Radiance confocal microscope mounted on a Nikon E800 manual upright microscope stand. You can use this microscope for imaging slides and for specimens that can only be imaged in open chambers in aqueous media (e.g. tissue, pupae/embryos, fish) or that require a longer working distance. The optional water dipping lenses have working distances in the order of 2 mm. Live mammalian cells can be imaged if the imaging chamber can be inverted so the cells are upside down. There is an optional heated stage adapter for warming the specimen but there is no CO2 supply so the chamber must be sealed to prevent pH change. There are three lasers with six laser lines but there is no 405 nm laser, so you cannot image DAPI or Hoechst. The confocal has three GaAsP detectors for high sensitivity imaging of poorly fluorescent specimens or at low laser power. FRAP and other photo-stimulation experiments are possible
Access & Usage
Technical Specifications
Standard Objective Lenses | |||||
Magnification | Type | Immersion | NA | DIC | WD (mm) |
---|---|---|---|---|---|
10x | Plan Fluor | Air | 0.3 | - | 16 |
20x | Plan Fluor | MImm | 0.75 | M | 0.33 - 0.35 |
40x | Plan Fluor | Oil | 1.3 | H | 0.2 |
60x | Plan Apo | Oil | 1.4 | H | 0.21 |
Water Dipping Lenses | |||||
Magnification | Type | Immersion | NA | DIC | WD (mm) |
20x | Fluor | Water | 0.5 | M | 2 |
40x | Fluor | Water | 0.8 | M | 2 |
60x | Fluor | Water | 1.0 | H | 2 |
The letters in column 5 indicate the correct prism for use with the lens |
Lasers
Line | Laser | Fluorophores | Notes |
---|---|---|---|
458 | Argon | CFP | This is not a very strong line |
476 | Argon | - | Could be used as an alternative for green dyes |
488 | Argon | EGFP, FITC, Alexa 488 | |
514 | Argon | YFP and related proteins | |
543 | GreenHeNe | TRITC, Alexa 532, Alexa 546, Alexa 555, Cy3 | Can also be used for 'redder' dyes like Texas Red, Alexa 568, Alexa 594, mCherry but with lower excitation efficiency |
637 | Red Diode | Cy5, Alexa 633, Alexa 647, silicon rhodamine dyes, DRAQ5 |
Note that there is no 405 nm laser on this machine so you cannot image Hoechst, DAPI or anything else in the blue region of the visible spectrum