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Magnetic Particles


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Coated Polystyrene Magnetic Particles
These magnetic particles are prepared by coating a layer of iron oxid and polystyrene onto the core of the particles. They are relativly uniform in size, spherical in shape and paramagnetic in nature. The paramagnetic nature of the particles allows them to be separated by using a magnet but the particles will resuspend easily when removed from the magnet. They will not retain any significant magnetism even after repeat exposure to strong magnetic field.
Smooth surface particleshave an additional layer of polymer coating on the surface, to cover the iron oxide coating, so iron oxide is not on the surface of a bead. The smooth particles are useful in applications, where iron oxide may interfer with e.g.enzymatic activities.

These magnetic particles can be used for cell separation, affinity purification, DNA probe assays, magnetic particle EIA etc. The coated magnetic particles are prepared by covalent coupling, concentration is around 2 x 108 particles/ml, 0,02% sodium azide added..

The Particles are supplied monodisperse in the described range, the actual size is depending on current lot.nr.
Cat. # Description Size µ / unit % w/vPrice [USD]
PMAv-1 Magnet Particles Avidin coated1,0-1,9µ/ 10 ml0,5%295.00
PMAv-4 Magnet Particles Avidin coated4,0-4,5µ/ 10 ml1,0%295.00
PMAv-4 Magnet Particles Avidin coated4,0-4,5µ/ 100 ml1,0%1,890.00
PMAv-6 Magnet Particles Avidin coated6,0-8,0µ/ 10 ml1,0%395.50
PMAv-6 Magnet Particles Avidin coated6,0-8,0µ/ 100 ml1,0%2,490.50
PMAv-8 Magnet Particles Avidin coated8,1-9,9µ/ 5 ml1,0%439.00
PMAv-3-S Magnet Particles Avidin coated, smooth surface3,0-3,9µ/ 10 ml1,0%315.00
PMAv-4-S Magnet Particles Avidin coated, smooth surface4,0-4,5µ/ 10 ml1,0%315.00
PMAv-1-2G Magnet Particles Avidin coated, non uniform granules1-1µ/ 10 ml0,5%229.00
PMSt-0.6 Magnet Particles Streptavidin coated0,5-0.69µ/ 10 ml0,5%299.85
PMSt-0.7 Magnet Particles Streptavidin coated0,7-0,9µ/ 10 ml0,5%299.85
PMSt-1.0 Magnet Particles Streptavidin coated1,0-1,4µ/ 10 ml0,5%299.85
PMSt-1.5 Magnet Particles Streptavidin coated1,5-1,9µ/ 10 ml0,5%299.85
PMSt-2.0 Magnet Particles Streptavidin coated2,0-2,9µ/ 10 ml0,5%299.85
PMSt-3 Magnet Particles Streptavidin coated3,0-3,9µ/ 10 ml1,0%365.80
PMSt-4 Magnet Particles Streptavidin coated4,0-4,5µ/ 10 ml1,0%365.80
PMSt-5 Magnet Particles Streptavidin coated4,6-5,9µ/ 5 ml1,0%395.00
PMSt-6 Magnet Particles Streptavidin coated6,0-8,0µ/ 5 ml1,0%428.70
PMSt-8 Magnet Particles Streptavidin coated8,0-9,9µ/ 5 ml1,0%485.70
PMSt-40 Magnet Particles Streptavidin coated38-44µ/ 4 ml0,5%595.70
PMSt-3-S Magnet Particles Streptavidin coated, smooth surface3,0-3,9µ/ 10 ml1,0%395.80
PMSt-4-S Magnet Particles Streptavidin coated, smooth surface4,0-4,5µ/ 10 ml1,0%395.80
PMGAM-4 Mag. Part. Goat anti-mouse IgG (Affinity purified, H & L)4,0-4,5µ/ 10 ml1,0%378.90
PMAMC-4 Mag Part. Goat anti-mouse IgG (Aff. purif. & cross ads.H&L)4,0-4,5µ/ 10 ml1,0%399.09
PMGAR-4 Magnet Part. Goat ant-rabbit IgG ( H & L )4,0-4-5µ/ 10 ml1,0%378.90
PMGAH-4 Mag. Part. Goat anti Human IgG ( Fc )4,0-4,5µ/ 10 ml1,0%378.90
PMB-1 Magnet Part. Biotin covalently coupled to BSA coated Mag.Part.1,0-1,9µ/ 10 ml0,5%229.85
PMB-4 Magnet Part. Biotin covalently coupled to BSA coated Mag.Part.4,0-4,5µ/ 10 ml1,0%229.85
PMB-6 Magnet Part. Biotin covalently coupled to BSA coated Mag.Part.6,0-7,9µ/ 5 ml1,0%419.00
PMB-1-2G Magnet Particles Biotin coated, non uniform granules6,0-7,9µ/ 10 ml0,5%265.00
PMPrG-3-S Magnet Particles Protein G coated, smooth surface3,0-3,9µ/ 2ml1,0%358.70
PMPrG-4 Magnet Particles Protein G coated4,0-4,5µ/ 2ml1,0%335.00
PMPrG-4-S Magnet Particles Protein G coated, smooth surface4,0-4,5µ/ 2ml1,0%358.70
PMPrA-3-S Magnet Particles Protein A coated, smooth surface3,0-3,9µ/ 5 ml1,0%310.00
PMPrA-4 Magnet Particles Protein A coated4,0-4,5µ/ 5 ml1,0%289.00
PMPrA-4-S Magnet Particles Protein A coated, smooth surface4,0-4,5µ/ 5 ml1,0%310.00


Available Data sheets: Binding capacity of 1. Avidin Mag.Part/ 2.GaM Mag.Part./ 3.Streptavidin Mag.Part./ 4.Biotin Mag.Part.
5. Separation of mononuclear cells from peripheral blood using GaM IgG magnetic particles
6. Magnetic particles coated with Pepsin, Papain and Trypsin 7. Protein A coated magnetic particles

Magnetizable Nanoparticles and magnetizable microparticles, Dextran based
The superparamagnetic nanoparticles on basis of Dextran with a size of 0,25µ have a magnetitcontent of 90%. While 130nm and 250nm particles can be separated easy by a permanent magnet, 50nm and 100nm particles can due to their small size only be seoarated by a "High Gradient magnetic Field" device ( HGMF ). They are supplied as aqueous solution in a concentration of 25mg/ml as plain and 10m
Cat. # Size/quantity chemistry/concentr.Price [USD]
PMP-20 0,02µ/ 5 ml plain/ 10mg/ml278.85
PMP-50 0,05µ/ 5 ml plain/ 10mg/ml249.00
PMP-100 0,10µ/ 5 ml plain/ 10mg/ml249.00
PMP-130 0,13µ/ 5 ml plain/ 25mg/ml175.46
PMP-250 0,25µ/ 5 ml plain/ 25mg/ml 175.46
PMN-20 0,02µ/ 5 ml -NH2- / 5mg/ml394.65
PMN-50 0,05µ/ 5 ml -NH2- / 5mg/ml359.75
PMN-100 0,10µ/ 5 ml -NH2- / 5mg/ml359.75
PMN-130 0,13µ/ 5 ml -NH2- / 10mg/ml249.35
PMN-250 0,25µ/ 5 ml -NH2- / 10mg/ml239.40
PMC-20 0,02µ/ 5 ml -COOH- / 5mg/ml336.05
PMC-50 0,05µ/ 5 ml -COOH- / 5mg/ml295.40
PMC-100 0,10µ/ 5 ml -COOH- / 5mg/ml295.40
PMC-130 0,13µ/ 5 ml -COOH- / 10mg/ml229.50
PMC-250 0,25µ/ 5 ml -COOH- / 10mg/ml219.50
PMAV-50 0,05µ/ 5 ml Avidin / 2,5mg/ml371.10
PMAV-100 0,1µ/ 5 ml Avidin / 2,5mg/ml371.10
PMAV-130 0,13µ/ 5 ml Avidin / 10mg/ml348.50
PMAV-250 0,25µ/ 5 ml Avidin / 10mg/ml338.50
PMAV-500 0,5µ/ 5 ml Avidin / 10mg/ml382.50
PMSA-20 0,02µ/ 1ml Streptavidin / 2,5mg/ml378.95
PMSA-50 0,05µ/ 1ml Streptavidin / 2,5mg/ml271.70
PMSA-100 0,1µ/ 1ml Streptavidin / 2,5mg/ml271.70
PMSA-130 0,13µ/ 1ml Streptavidin / 10mg/ml298.90
PMSA-250 0,25µ/ 1ml Streptavidin / 10mg/ml293.15
PMSA-500 0,5µ/ 1ml Streptavidin / 10mg/ml315.20
PMB-50 0,05µ/ 2ml Biotin / 2,5mg/ml599.00
PMB-100 0,1µ/ 2ml Biotin / 2,5mg/ml369.00
PMB-130 0,13µ/ 2ml Biotin / 10mg/ml198.90
PMB-250 0,25µ/ 2ml Biotin / 10mg/ml188.50
PMPA-50 0,05µ/ 1ml Protein A / 2,5mg/ml239.00
PMPA-100 0,1µ/ 1ml Protein A / 2,5mg/ml239.00
PMPA-130 0,13µ/ 1ml Protein A / 10mg/ml236.90
PMPA-250 0,25µ/ 1ml Protein A / 10mg/ml215.50

Magnetic Polystyrene Particles
In many experiments the careful separation of cells or cellfragmentes is a problem. Magnetizable ( paramagnetic ) particles have the characteristic, to be magnetizated within a magnetic field. So they can be separeted easy within a solution. Outside of the magnet field the particles are not magnetic. These particles are made by coating a layer of iron oxide and polystyrene onto polystyrene core particles. The particles are useful for cellseparation, coupling of proteines, antibodies and DNA, affinity purification and DNA probe assays. The particles are monodisperse with low SD and a CV of less than 5%. They are supplied as aqueous suspension.
Cat. # size/quantityConcentration chemistryPrice [USD]
PM-2.5 2,0-2,9µ/ 10 ml25 mg/ml plain219.40
PM-2.5 2,0-2,9µ/ 100 ml25 mg/ml plain1,265.00
PM-3.5 3,0-3-9µ/ 10 ml25 mg/ml plain219.40
PM-3.5 3,0-3-9µ/ 100 ml25 mg/ml plain1,265.00
PM-4.5 4,0-4,5µ/ 10 ml25 mg/ml plain219.40
PM-4.5 4,0-4,5µ/ 100 ml25 mg/ml plain1,265.00
PM-5.5 5,0-5,9µ/ 10 ml25 mg/ml plain259.40
PM-5.5 5,0-5,9µ/ 100 ml25 mg/ml plain1,510.00
PMC-0.1 0.1-0.4µ/ 10 ml25 mg/ml COOH funct.235.95
PMC-0.4 0.4-0.7µ/ 10 ml25 mg/ml COOH funct.235.95
PMC-0.7 0.7-0.9µ/ 10 ml25 mg/ml COOH funct.235.95
PMC-1.0 1,0-1,4µ/ 10 ml25 mg/ml COOH funct.235.95
PMC-1.5 1,5-1,9µ/ 10 ml25 mg/ml COOH funct235.95
PMC-2.5 2,0-2,9µ/ 10 ml25 mg/ml COOH funct.248.85
PMC-3.5 3,0-3,9µ/ 10 ml25 mg/ml COOH funct.248.85
PMC-4.5 4,5-4,5µ/ 10 ml25 mg/ml COOH funct.248.85
PMC-5.5 5,0-5,9µ/ 10 ml25 mg/ml COOH funct.347.25
PMC-7.0 6,0-8,0µ/ 10 ml25 mg/ml COOH funct.373.25
PMC-8.5 8,0-9,9µ/ 10 ml25 mg/ml COOH funct.463.35
PMC-10.0 10,0-14,0µ/ 10 ml10 mg/ml COOH funct.423.30
PMC-15.0 15,0-18,0µ/ 10 ml10 mg/ml COOH funct.463.35
PMC-18.0 18,0-24,0µ/ 10 ml10 mg/ml COOH funct.494.95
PMN-1.0 1,0-1,4µ/ 10 ml25 mg/ml NH2 funct.241.67
PMN-1.5 1,5-1,9µ/ 10 ml25 mg/ml NH2 funct.241.67
PMN-2.5 2,0-2,9µ/ 10 ml25 mg/ml NH2 funct.249.55
PMN-3.5 3,0-3,9µ/ 10 ml25 mg/ml NH2 funct.249.55
PMN-4.5 4,0-4,5µ/ 10 ml25 mg/ml NH2 funct.249.55
PMN-7.0 6,0-8,0µ/ 10 ml10 mg/ml NH2 funct.389.40
PMN-8.5 8,0-9,9µ/ 10 ml10 mg/ml NH2 funct.469.35
PME-3.5 3,0-3,9µ/ 10 ml25 mg/ml Epoxy funct.279.35

Magnetizable Fluorescent Polystyrene Microparticles, supplied as 10 mg/ml suspension
Cat. # Size/quantity chemistry/colorPrice [USD]
PFAM-2052 2,0-2,9µ/ 2ml NH2 yellow238.85
PFAM-2058 2,0-2,9µ/ 2ml NH2 pink238.85
PFAM-4056 4,0-4,9µ/ 2ml NH2 nile red248.85
PFCM-02556 0,2-0,39µ/ 2ml COOH nile red238.85
PFCM-1052 1,0-1,4µ/ 2ml COOH yellow238.85
PFCM-1058 1,0-1,4µ/ 2ml COOH pink238.85
PFCM-2052 2,0-2,9µ/ 2ml COOH yellow238.85
PFCM-2058 2,0-2,9µ/ 2ml COOH pink238.85
PFCM-4052 4,0-4,4µ/ 2ml COOH yellow298.85
PFCM-4056 4,0-4,9µ/ 2ml COOH nile red298.85
PFCM-4058 4,0-4,9µ/ 2ml COOH pink298.85
PFCM-8052 8,0-8,9µ/ 2ml COOH yellow325.35
PFCM-8056 8,0-8,9µ/ 2ml COOH nile red325.35

Magnetic Polystyrene Particles with terminal PEG- groups
These beads consists of magnetite in a polystyrene copolymerisate as organic matrix (density 1.2g/cm3). They include a final coating with terminal PEG-COOH or PEG-NH2 groups, which can be used for nonspecific or covalent binding of proteins, antibodies, DNA etc.
The particles are monodisperse with low SD and a CV of less than 6%. The magnetisation is 3.0 emu/g beads (H=1.000 Oe)
They are stable in aqueous buffers, methanol, ethanol, DMSO and are supplied as aqueous suspension.
This type of magnetic beads can also be offered with coatings of avididin, streptavidin, protein A and albumin on request.
Cat. # size/quantityConcentration chemistryPrice [USD]
PMPEG-2.0COOH 2,0µ/ 10 ml50 mg/ml PEG-COOH funct.447.55
PMPEG-3.0COOH 3,0µ/ 10 ml50 mg/ml PEG-COOH funct.447.55
PMPEG-4.0COOH 4,0µ/ 10 ml50 mg/ml PEG-COOH funct.447.55
PMPEG-5.0COOH 5,0µ/ 10 ml50 mg/ml PEG-COOH funct.447.55
PMPEG-6.0COOH 6,0µ/ 10 ml50 mg/ml PEG-COOH funct.447.55
PMPEG-7.0COOH 7,0µ/ 10 ml50 mg/ml PEG-COOH funct.497.60
PMPEG-8.0COOH 8,0µ/ 10 ml50 mg/ml PEG-COOH funct.497.60
PMPEG-10.0COOH 10,0µ/ 10 ml50 mg/ml PEG-COOH funct.497.60
PMPEG-12.0COOH 12,0µ/ 10 ml50 mg/ml PEG-COOH funct.497.60
PMPEG-3.0NH2 3,0µ/ 10 ml50 mg/ml PEG-NH2 funct.447.55
PMPEG-4.0NH2 4,0µ/ 10 ml50 mg/ml PEG-NH2 funct.447.55
PMPEG-5.0NH2 5,0µ/ 10 ml50 mg/ml PEG-NH2 funct.447.55
PMPEG-6.0NH2 6,0µ/ 10 ml50 mg/ml PEG-NH2 funct.447.55
PMPEG-7.0NH2 7,0µ/ 10 ml50 mg/ml PEG-NH2 funct.497.60
PMPEG-8.0NH2 8,0µ/ 10 ml50 mg/ml PEG-NH2 funct.497.60
PMPEG-10.0NH2 10,0µ/ 10 ml50 mg/ml PEG-NH2 funct.497.60
PMPEG-12.0NH2 12,0µ/ 10 ml50 mg/ml PEG-NH2 funct.497.60

Magnetic biodegradable particles - PLA with different surfaces
Cat.# concentration/ quantitySize in micron Functional surfacePrice [USD]
PMBD-10010mg /ml, 10 ml100plain280.80
PMBD-10010mg /ml, 10 ml30plain280.80
PMBD-10010mg /ml, 10 ml100amino370.80
PMBD-10010mg /ml, 10 ml30amino370.80
PMBD-10010mg /ml 5 ml100COOH370.80
PMBD-10010mg /ml 2ml30COOH370.80

Magnet Separation Rack for Microtubes
To separate magnetic particles a high magnetic field as provided by strong neodymium magnets is necessary.
This acrylic 10 place rack allows the simultaneous separation of 5 x 1,5/2,0ml microcentrifuge tubes and the storage of 5 x 1,5/2,0ml tubes in a
Cat. # DescriptionquantityPrice [USD]
MR-10 Magnet Separation Rack1109.60

VariMag Separation Rack for Tubes
The VariMag Separator accomodates tubes from 1,5 ml to 200 ml tissue culture bottle. It uses interchangable tube holders to secure different tube and bottle sizes. A set of three tube holders, smal-medium-large is included:
smal: 4 x 1,5 ml and 4 x 10/12 x 75 mm tubes, 6 in total
medium:two 15 ml or two 16 x 100 mm tubes, 4 in total
large:two 200 ml tissue culture bottles directly without adapter.

VaryMag-S is designed for smal scale use. It holds up to eight 1,5 ml tubes, 5 ml cryo vials or 10/12 x 75mm tubes.
Cat. # DescriptionquantityPrice [USD]
MR-4/4 VariMag Separation Rack1610.60
MR-8 VariMag-S Separation Rack1495.85

Magnetic Separation Racks for Microplates
The MicroMag Separator is designed to fit to any 96-well microplate with round-, flat or V-bottom The magnetic strips on the separator will pull the particles to a corner of the well to facilicate the aspiration of supernatant during the washing
The UltarMag and UltraMag-DW separator are designed to facilitate the washing of magnetic beads in the magnetic Particles Enzyme Immunoassay (MPEIA) using 96-well plates. The magnetic pegs of the separator fit between the wells underneath the 96-well plate
If the separator is loaded with the microplate into an appropriate reader, the particles stay out of the light beam passing through the bottom of the well and corresponding holes in the UltraMag separator..
Cat. # DescriptionquantityPrice [USD]
MR-96 UltarMag Separation Rack1743.65
MR-96-DW UltraMag-DW Separation Rack1799.55

Magnetic Silica particles - a fast method for DNA/RNA purification and Protein separation
Separation techniques are goinig to be more and more important in biotechnology, to get on cost efective, simple , reproducable ways and by using automatisation systems. The large surface area of 50m2/g provides a high capacity to bind cells, bacteria, DNA/RNA , proteines or antibodies.
These paramagnetic uniform non porous silica particles are with 80% magnetit content allow simple magnet separation. The are supolied in double destilled H2O, but can be offered in powder form on request.

main applications of the chemical modifications:
Silanol:DNA & RNA techniques, purification of genomic DNA, plasmid DNA, viral DNA or PCR products. DNA/RNA bind to the silica beads under high salt conditions as 4 mol NaL or 5 mol GuSNC.
Silanol-ROB: especially developed for use of DNA/RNA separation in robotic systems.
Carboxyl: binding of bioactive substances by the Carbodiimide methode
Amino:binding of bioactive substances by the Carbodiimide methode
Cyanuric replaces Chloromethyl due to better binding characteristics
Streptavidin: biotin labeled molecules
Biotin:avidin/streptavidin labeled molecules

available on request: magnetic silica beads with Protein A andG, Oligo(dt), calf tymus DNA, Albumin and GaM (Fc).
Cat.# size/ quantity Functional Gr/Concentr.Price [USD]
PMSi-H.25-5 0,25µ / 5 ml Silanol, 50mg/ml154.80
PMSi-H.5-5 0,50µ / 5 ml Silanol, 50mg/ml154.80
PMSi-H.75-5 0,75µ / 5 ml Silanol, 50mg/ml154.80
PMSi-H1.0-5 1,0µ / 5 ml Silanol, 50mg/ml154.80
PMSi-ROB1.0-5 1,0µ / 5 ml Silanol, 200mg/ml154.80
PMSi-CH.25-5 0,25µ / 5 ml Carboxyl, 25mg/ml129.75
PMSi-CH.5-5 0,5µ / 5 ml Carboxyl, 25mg/ml129.75
PMSi-CH.75-5 0,27#181; / 5 ml Carboxyl, 25mg/ml129.75
PMSi-CH1.0-5 1,0µ / 5 ml Carboxyl, 25mg/ml129.75
PMSi-Cy.5-5 0,5µ / 5 ml Cyanuric, 25mg/ml129.75
PMSi-Cy.75-5 0,75µ / 5 ml Cyanuric, 25mg/ml129.75
PMSi-Cy1.0-5 1,0µ / 5 ml Cyanuric, 25mg/ml129.75
PMSi-AM.5-5 0,5µ / 5 ml Amino, 25mg/ml129.75
PMSi-AM.75-5 0,75µ / 5 ml Amino, 25mg/ml129.75
PMSi-AM1.0-5 1,0µ / 5 ml Amino, 25mg/ml129.75
PMSi-PoGl.5-5 0,5µ / 5 ml Polyglutaraldehyde, 25mg/ml178.75
PMSi-PoGl.75-5 0,75µ / 5 ml Polyglutaraldehyde, 25mg/ml178.75
PMSi-PoGl1.0-5 1,0µ / 5 ml Polyglutaraldehyde, 25mg/ml178.75
PMSi-SA.25-5 0,25µ / 5 ml Streptavidine, 10mg/ml375.05
PMSi-SA.5-5 0,5µ / 5 ml Streptavidine, 10mg/ml375.05
PMSi-SA.75-5 0,75µ / 5 ml Streptavidine, 10mg/ml375.05
PMSi-SA1.0-5 1,0µ / 5 ml Streptavidine, 10mg/ml375.05
PMSi-B.5-5 0,5µ / 5 ml Biotin, 10mg/ml375.05
PMSi-B.75-5 0,75µ / 5 ml Biotin, 10mg/ml375.05
PMSi-B1.0-5 1,0µ / 5 ml Biotin, 10mg/ml375.05

Magnetic Silica particles - 1,5µ with different surfaces
Cat.# concentration/ quantity Functional surfacePrice [USD]
PMSi-1.550mg /ml, 10 ml plain425.80
PMSi-1.5NH250mg /ml, 10 ml amino465.50
PMSi-1.5COOH50mg /ml, 10 ml carboxy465.50
PMSi-1.5SA10mg /ml 2ml Streptavidin269.40
PMSi-1.5A10mg /ml 5 ml Avidin315.30
PMSi-1.5PA10mg /ml 2ml Protein A269.40
PMSi-1.5BSA10mg /ml 5 ml Albumin385.60


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