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Absolute Mag™ Streptavidin Magnetic Nanoparticles, 20 nm(WHM-G012)

Datasheet

Absolute Mag™ Streptavidin Magnetic Nanoparticles, 20 nm (# WHM-G012) are superparamagnetic iron oxide in a matrix of dextran. These nanoparticles are designed with covalently bound streptavidin on the surface for binding of biotinylated molecules with a high affinity. 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
20 nm
Ligand
Streptavidin
Concentration
5 mg/mL
Storage Buffer
Suspension in PBS (0.02 % sodium azide).
Unit Size
1 mL
Number of Particles
8.6E+14 particles/mL
Matrix
Dextran
Surface Group Density
1.5 µg streptavidin/mg particles (ca. one molecule streptavidin per particle)
Density
1.4 g/ccm
Magnetization
54 Am2/kg iron (H = 80 kA/m)
Saturation Magnetization
>69 Am2/kg iron (H> 800 kA/m)
Coercive Field Hc
0.049 kA/m
Stability
Stable in aqueous buffers pH> 4. Not stable in organic solvents, acidic solutions pH < 4.
Storage
Storage at 2 - 8 °C for 3 months.
Shelf Life
When stored as specified the product is stable for three months.

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