Cell Surface & Membrane Dyes
Biotium offers a variety of cell surface stains that depend on the workflow and application. CytoLiner™ Fixed Cell Membrane Stains are novel lipophilic fluorescent dyes designed for selective and robust labeling of the plasma membrane in formaldehyde-fixed cells.
CellBrite® Fix and MemBrite® Fix Membrane Staining Kits offer stable covalent labeling of cell surfaces and can withstand fixation and permeabilization. These stains are designed to be used on live cells that will be fixed shortly after.
CellBrite® Steady Membrane Staining Kits were designed specifically for staining cell surfaces in live cells for long-term imaging. The stains are retained on the cell surface, unlike other membrane dyes that are rapidly internalized.
We also offer classic membrane and membrane potential dyes, including CellBrite™ and CellBrite™ NIR dyes, which are lipophilic carbocyanine dyes that stain the plasma membrane of cells and are non-toxic for long-term tracking.
Learn more about our cell membrane stains and which is right for you.
Ulex Europaeus Agglutinin I (UEA I) Conjugates
29133, 29108, 29109, 29110, 29111, 29112, - 29113View allHide
UEA I binds to glycoproteins and glycolipids containing α-linked fucose residues, such as ABO blood group glycoconjugates. The lectin is an established marker for human endothelial cells and has been used to differentiate between angiosarcomas and epithelial tumors. Biotium offers UEA I conjugated to biotin and a selection of 6 bright and photostable CF® Dyes.
Phaseolus Vulgaris Leucoagglutinin (PHA-L) Conjugates
29134, 29114, 29115, 29116, 29117, 29118, - 29119View allHide
PHA-L triggers lymphocyte agglutination and is available conjugated to biotin and a selection of 6 bright and photostable CF® Dyes.
Concanavalin A (Con A) CF® Dye Conjugates
29136, 29015, 29016, 29017, 29018, 29019, 29020, 29058, 29074, 29075, - 29080View allHide
A lectin labeled with our superior fluorescent CF® dyes is an effective and widely used cell surface stain for yeast, fungi, and mammalian cells.
Lycopersicon Esculentum (Tomato) Lectin (LEL, TL) Conjugates
29132, 29102, 29103, 29104, 29105, 29106, - 29107View allHide
Tomato lectin (LEL, TL) CF® Dye conjugates that bind to [GlcNAc] 1,3-N-acetylglucosamine, glycophorin, and Tamm-Horsfall glycoprotein. LEL, TL is a commonly used marker for blood vessels and microglial cells in rodent and neuroscience research. Biotium offers tomato lectin conjugated to biotin and a selection of 6 bright and photostable CF® Dyes.
Datura Stramonium Lectin (DSL) Conjugates
29131, 29096, 29097, 29098, 29099, 29100, - 29101View allHide
DSL binds to (beta-1,4) linked N-acetylglucosamine oligomers, preferring chitobiose or chitotriose over single N-acetylglucosamine residues. Biotium offers DSL conjugated to biotin and a selection of 6 bright and photostable CF® Dyes.
Sambucus Nigra Lectin (SNA, EBL) Conjugates
29135, 29120, 29121, 29122, 29123, 29124, - 29125View allHide
SNA lectin binds to sialic acid attached to terminal galactose. SNA lectin is a carbohydrate-binding protein that can induce apoptosis in insect cells and cultured mammalian cell cancer cells. Biotium offers SNA lectin conjugated to biotin and a selection of 6 bright and photostable CF® Dyes.
Wheat Germ Agglutinin (WGA) Conjugates
29128-1, 29128, 29095-1, 29095, 29021, 29022, 29023, 29024, 29025, 29026, 29027, 29028, 29029, 29059, 29064, 29073, 29021-1, 29022-1, 29023-1, 29024-1, 29025-1, 29026-1, 29027-1, 29028-1, 29029-1, 29059-1, 29064-1, 29077-1, 29077, 29076-1, - 29076View allHide
A wheat germ agglutinin (WGA) lectin labeled with Biotium’s CF® Dyes, biotin, or HRP. It is a carbohydrate-binding lectin that has high affinity for sialic acid and N-acetylglucosamine and stains yeast bud scars as well as the cell membrane of gram+ bacteria and mammalian cells.
CytoLiner™ Fixed Cell Membrane Stains
30140, 30140-T, 30131-T, 30131, 30132-T, 30132, 30133-T, 30133, 30134-T, 30134, 30135-T, - 30135View allHide
Novel lipophilic fluorescent dyes for selective staining of the plasma membrane in formaldehyde-fixed cells. Available in 6 colors, from blue to near-IR.
CellBrite® Cytoplasmic Membrane Dyes
30079, 30078, 30077, 30070, 30021, 30022, 30023, - 30024View allHide
Dye solutions of lipophilic carbocyanine dyes DiB, Neuro-DiO, DiI, and DiD, as well as novel near-infrared lipophilic dyes for non-toxic labeling of cytoplasmic membranes.
CellBrite® Steady Membrane Staining Kits
30105-T, 30105, 30106-T, 30106, 30107-T, 30107, 30108-T, 30108, 30109-T, - 30109View allHide
Cell surface staining kits with fluorescent membrane dye plus enhancer for imaging live cell surface for several hours to days.
MemBrite® Fix Cell Surface Staining Kits
30092, 30092-T, 30093, 30093-T, 30094, 30094-T, 30095, 30095-T, 30096, 30096-T, 30097, 30097-T, 30098, 30098-T, 30099, 30099-T, 30101, 30101-T, 30102, 30102-T, 30103, 30103-T, 30104, - 30104-TView allHide
Wide choice of dye colors for covalent staining the surface of live cells to conveniently visualize cell boundaries in immunofluorescence experiments.
CellBrite® Fix Membrane Stains
30089, 30089-T, 30088, 30088-T, 30090, - 30090-TView allHide
Unique fluorogenic membrane dyes that covalently stain the plasma membrane in live cells, and can withstand both fixation and detergent permeabilization.
1,6-Diphenyl-1,3,5-hexatriene
1,6-Diphenyl-1,3,5-hexatriene (DPH) is almost non-fluorescent in water, but it exhibits a strong increase in fluorescence after intercalation into membranes and can be used as a probe for viscosity, polarity and lipid order.
Nile Red
Nile Red is a red fluorescent neutral lipid stain.
DiOC16(3)
DiOC16(3) is a green fluorescent lipophilic cyanine dye with two C16 hydrocarbon chains that can be used to stain cytoplasmic membranes.
DiB
DiB is a lipophilic cationically charged blue fluorescent dye.