SDS (Material Safety Data Sheet) and COA (Certificate of Analysis) are included in every purchase.Ģ. Our magnetic silica beads are only priced based on the solid content for instance, 50 ml of the silica nanospheres at 10mg/ml would have the same price as 10 ml of the silica nanospheres at 50 mg/ml.ġ. These particles can be easily resuspended using sonication (ultrasonic bath or ultrasonic homogenizer) or vortexing. Large particles precipitate faster than small particles. The magnetic silica microspheres might precipitate at the bottom of the containing vial over time, and this is not a sign of aggregation. Carboxyl-functionalized magnetic silica nanoparticles and amine-terminated magnetic silica beads are known to be effective in protein isolation or macromolecule purification.Ĭan be adapted to other common biological buffers like phosphate-buffered saline (PBS) or organic solvents like ethanol via repeated centrifugation and resuspension.
The non-functionalized magnetic silica nanoparticles (1 μm being the most popular size) are frequently used for plasmid DNA/RNA isolation/extraction. These iron oxide beads coated with silica can be easily surface functionalized via chemical bond formation. Lifetime: At least 2 years from the date of product delivery Sizes available: 100 nm, 300 nm, 500 nm, 1 μm, 2 μm, 5 μm, 10 μm, and 50 μmĪlthough applications vary from one to another, 1-10 mg solid magnetic silica microspheres will typically yield 10 μg of DNA molecules Low concentrations to ultra-high concentration available: 10 - 100 mg/ml (i.e. Surface functional group: -OH available for all sizes and -NH2 and -COOH available for 100 nm, 300 nm, and 1 μm Silica shell is optional if the superparamagnetic iron oxide core is needed Superparamagnetic cores covered by the silica shells Colloidal Magnetic Silica Nano-/Microspheres
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