What is fluorescence microscopy techniques?
Fluorescence microscopy is an imaging technique used in light microscopes that allows the excitation of fluorophores and subsequent detection of the fluorescence signal.
What are the different types of fluorescence microscopy?
Fluorescence microscopy techniques
- Fluorescent Widefield Microscopy.
- Point Scanning Confocal Microscopy.
- Parallelized Confocal Microscopy (Spinning Disk)
- 2-Photon Microscopy.
- Light Sheet Microscopy.
- Total Internal Reflection Microscopy (TIRF)
- Super resolution microscopy.
- Thin dynamic samples.
Which microscopy technique uses Fluorochrome?
The basic premise of fluorescence microscopy is to stain the components with dyes. Fluorescent dyes, also known as fluorophores or fluorochromes, are molecules that absorb excitation light at a given wavelength (generally UV), and after a short delay emit light at a longer wavelength.
What is the flip technique?
Fluorescence Loss in Photobleaching (FLIP) is a fluorescence microscopy technique used to examine movement of molecules inside cells and membranes. The amount of fluorescence from that region is then measured over a period of time to determine the results of the photobleaching on the cell as a whole.
What type of light is used in fluorescence microscopy?
Commonly used light sources in widefield fluorescence microscopy are light-emitting diodes (LEDs), mercury or xenon arc-lamps or tungsten-halogen lamps.
What is the working principle of fluorescent microscopy?
Fluorescence microscopy is a type of light microscope that works on the principle of fluorescence. A substance is said to be fluorescent when it absorbs the energy of invisible shorter wavelength radiation (such as UV light) and emits longer wavelength radiation of visible light (such as green or red light).
What are the basic components of a fluorescence microscope and what are the functions of each?
Essential components for fluorescence microscopes are the light source, the excitation filter, the dichroic mirror, and the emission filter. The light source is usually a xenon lamp, a mercury lamp, or a tungsten halogen lamp, which has a wide band of emission.
What is FRET FRAP?
A fluorescence recovery after photobleaching (FRAP) experiment is a time series with controlled bleaching. Acceptor-bleaching fluorescence resonance energy transfer (FRET) is the easiest to perform but is not used for quantitative studies because it fails to account for spectral bleed-through.
What is apc-cy7 dye?
APC-Cy7 dye is a part of the BD APC red family of dyes. This tandem fluorochrome is comprised of a Allophycocyanin (APC) donor that has excitation maxima (Ex Max) of 651 nm and an acceptor dye, Cy™7, with an emission maximum (Em Max) at 779 nm.
How is apc-cy7 tandem fluorochrome emission collected?
APC-Cy7 tandem fluorochrome emission is collected in a detector for fluorescence wavelengths of 750 nm and higher. Warning: Some APC-Cy7 and PE-Cy7 conjugates show changes in their emission spectrum with prolonged exposure to formaldehyde.
Can I use 640 nm laser to excite apc-cy7?
Regarding your specific question, you can better harness your 640 nm laser for the selective excitation of the APC-Cy7. The PE-Cy7 is excitable by the 488 nm excitation, that is also reserved for other dyes in your list. I, however, still think there will be complications coming from other things.
Is it safe to use apc/cy7 and PE/Cy 7 together?
In my experience, it is not advisable to use APC/Cy7 and PE/Cy7 together due to heavy cross-beam contamination as their emission max are exactly same. However, they can be used together if you are using machines like the Cytek Aurora.