Title: Wavelength and Light Properties
1Wavelength and Light Properties
(l)
High Energy
Low Energy
n c / l E hn
2Discovery of the Fluorescence 1852
Sir George Gabriel Stokes (1819-1903)
Fruorite
Fluorescence
- escence - means "to become" in Latin. - Fluor
- comes from the Fluorite (fluorspar)
3Fluorescence
4Spectral Shift Filters ( Stokes Shift)
5Fluorochrome (khroma crwma color) a
fluorescent molecule Fluorophore
(-phore joroz to bear, carrying) a
component of a molecule which causes a molecule
to be fluorescent Fluorescent dye XXX is
labeled with a fluorescent dye Fluorescent
probe XXX is the Fluorescent probe for ...
6Fluorochromes
Fluorescein isothiocyanate (FITC)
Hoechst
7Fluorochromes
8Fluorochromes
Quantum Yield
total integrated photon emission over the entire
spectral band of the fluorophore
S1 gt S2
9Fluorochromes
FITC ME - 93 000 QY - 0,87
Phycoerythrin (PE) ME - 1 960 000 QY - 0,82
Drs E.D. Wieder and L. Gibson, Gladstone Inst.
Of Virology Immunology, San-Francisco, CA
10Fluorescent probes for DNA
11Immunolabeling
Ag Primary antibody (Ab )-FITC
Ag AC Secondary Antibody ( Ab )-FITC
Ag AC -Avidin (a) Biotin (b)-FITC
Ag AC Protein A (pA)-FITC
12Fluorescent Proteins
Ag Antibody-Fluorochome
Protein Fluorochome (Fluorescent Fusion Protein)
Green Fluorescent Protein
13Fluorescent probes for Metal Ions
Fluo-3
Ca
14Fluorochromes
Phycoerythrin (phycoerithrobilin)
Texas Red
15Conjugated Fluorochromes
Red 613
16Conjugated Fluorochromes
17Quantum dot
18Fluorochromes Cytometer
19Cells (Beads etc)
Fluorochromes
Staining
Instrumentation the art and science of
measurement
Data Analysis Presentation
Sorting
Examples