Fluorescent labeled polymers / polyelectrolytes

Fluorescent Labeled Polymers

When polyelectrolyte molecules are covalently linked to highly fluorescent dyes, they can be visualised in:

  • fluorescence spectrometer
  • flow cytometer
  • laser scanning microscope, etc.

With the confocal laser scanning microscopy, for example, the amount of labeled polymers adsorbed at a surface can be quantitatively determined, giving information on surface properties of materials (charge, porosity), flow conditions in tubes, deposit/sediment on catheters or in microfluidics, etc.

Furthermore, these polymers can be used in all Layer-by-Layer coatings.

We offer a wide chioce of fluorescent dyes according to excitation and emission settings of your instruments.

In addition to fluorescent dyes, polymers can be labelled with other functional materials such as complexation agents, photo receptors or radical formers on request.

Below is a list of the dye-labelled polyelectrolytes we offer.

Labeled cationic polymers (polycations)

PolymerMw in g/molDyelabel degree in
molmonomer/moldye
Polyethylenimine (PEI)25000Rhodamine238, 834
Polyethylenimine (PEI)70000Rhodamine680
Polyethylenimine (PEI)750000Rhodamine361
Polyethylenimine (PEI)2000Fluorescein50
Polyethylenimine (PEI)25000Cy5300
Polyallylamine (PAH)3000Rhodamine234
Polyallylamine (PAH)15000Rhodamine392
Polyallylamine (PAH)40000Rhodamine145, 512
Polyallylamine (PAH)70000Rhodamine665
Polyallylamine (PAH)40000Rhodamine-NH2126
Polyallylamine (PAH)3000Fluorescein255
Polyallylamine (PAH)15000Fluorescein224
Polyallylamine (PAH)40000Fluorescein222, 230
Polyallylamine (PAH)150000Fluorescein307
Polyallylamine (PAH)15000Cy3167, 279, 430, 545
Polyallylamine (PAH)56000Cy3173, 610
Polyallylamine (PAH)70000Cy3245, 389
Polyallylamine (PAH)15000Cy5296
Polyallylamine (PAH)56000Cy5289, 555
Polydiallyldimethylammonium chloride (PolyDADMAC, PDADMAC, PDA)NACy3564, 770
Chitosan SNARhodamine210
Chitosan LMNAFluorescein230
Chitosan HCMFNACy31032


Labeled anionic polymers (polyanions)

PolymerMw in g/molDyelabel degree in
molmonomer/moldye
Polystyrenesulfonate (PSS)NARhodamine167
Polystyrenesulfonate (PSS)NARhodamine-NH293
Polystyrenesulfonate (PSS)NAFluorescein380, 495, 810, 1167
Polymethacrylic acid (PMAA)NARhodamine195, 802
Polymethacrylic acid (PMAA)NARhodamine-NH2164
Polymethacrylic acid (PMAA)NAFluorescein234, 386, 527, 576, 758, 955
Polyacrylic acid, sodium salt (PAA)30000Fluorescein833, 1502
Polyacrylic acid, sodium salt (PAA)100000Fluorescein113, 165
Polyvinylphosphate (PVPh)200000Fluorescein1100