ATTO 633 DMPE Labeled Phospholipid 1 mg
ATTO-Dye Labeled Phospholipids
In recent years the investigation of biological membranes, e.g. intracellular membranes of live cells, plasma membranes etc., has become a major subject of interest. As a result there is a growing demand for fluorescent dye-labeled lipids, in particular glycero-phospholipids, to be incorporated in biological membranes. ATTO-TEC offers a variety of glycero-phospholipids, carrying one or two fatty acid chains (lipophilic groups) and a phosphate ester residue (hydrophilic group).
ATTO-dye fluorescent phospholipids are labeled at the hydrophilic head group. After incorporation in, e.g., a plasma membrane (phospholipid bilayer) the fluorophore is located at the water/lipid interface of the membrane.
"ATTO-TEC is a wholly owned subsidiary of Leica Microsystems"
Currently we provide the phospholipids
- 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine (DPPE),
- 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE),
- 1-palmitoyl-2-hydroxy-sn-glycero-3-phosphoethanolamine (PPE)
- 1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine (DMPE), and
- 1,2-dilauroyl-sn-glycero-3-phosphoethanolamine (DLPE)
labeled with ATTO-dyes.
ATTO-TEC is a wholly owned subsidiary of Leica Microsystems
ATTO 633
ATTO 633 belongs to a new generation of fluorescent labels for the red spectral region. Characteristic features of the label are strong absorption, high fluorescence quantum yield, and high thermal and photo-stability. Thus ATTO 633 is highly suitable for single-molecule detection applications and high-resolution microscopy such as SIM, STED etc. Additionally the dye highly qualifies to be applied in flow cytometry (FACS), fluorescence in-situ hybridization (FISH and many more.
In common with most ATTO-labels, absorption and fluorescence are independent of pH, at least in the range of pH 2 to 11, used in typical applications. ATTO 633 is a cationic dye. After coupling to a substrate the label carries a net electrical charge of +1.
The label is moderately hydrophilic. Its fluorescence is excited most efficiently in the range 610 - 645 nm. A suitable excitation source for ATTO 633 is the 633 nm line of the He:Ne laser or a diode-laser emitting at 635 nm.
