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US 2012/0247150 A1Published application
Magnetic Glass Particles, Method for Their Preparation and Uses Thereof
AssigneeRoche Diagnostics GmbH
InventorsKurt Weindel, Michael Riedling, Albert Geiger
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Abstract
This invention relates to magnetic particles having a glass surface which are substantially spherical. This invention also relates to methods for making them, as well as to suspensions thereof and their uses for the purification of DNA or RNA in particular in automated processes.
Claims11
A method for the production of a composition of magnetic glass particles comprising the steps of
- a) suspending magnetic objects with a diameter between 5 and 500 nm in a sol,
- b) spray-drying the suspension in a two-nozzle spray-drier, and
- c) sintering the spray-dried powder.
Dependencies are inferred from the claim text.