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Absolute Mag™ Carboxyl Magnetic Dextran Nanoparticles, 50 nm(WHM-G064)


Absolute Mag™ Carboxyl Magnetic Dextran Nanoparticles, 50 nm (# WHM-G064) are superparamagnetic iron oxide in a matrix of dextran. These nanoparticles are designed with carboxylic acid groups on the surface for the covalent binding of proteins, antibodies or other molecules by carbodiimide chemistry. These magnetic nanoparticles are cluster-typed shaped and can be separated in a high gradient magnetic field. Polydispersity index: < 0.2.

Application Notes
Suitable for magnetic resonance imaging or in magneto-immuno assays
Polydispersity Index
< 0.25
Particle Size
50 nm
Functional Group
5 mg/mL
Storage Buffer
Suspension in water.
Unit Size
5 mL
Number of Particles
5.5E+13 particles/mL
Binding Capacity
1.5 μg albumin (BSA)/mg particle (1 molecule albumin per particle)
Surface Group Density
2 μmol/ g iron
1.4 g/ccm
56 Am2/kg iron (H = 80 kA/m)
Saturation Magnetization
>69 Am2/kg iron (H> 800 kA/m)
Coercive Field Hc
0.077 kA/m
Stable in aqueous buffers pH> 4. Not stable in organic solvents, acidic solutions pH < 4.
Storage at 2 - 8 °C for 6 months.
Shelf Life
When stored as specified the product is stable for six months.

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