Spherical and magnetical silicagel carriers having an...

Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals – Carrier is inorganic

Reexamination Certificate

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C436S518000

Reexamination Certificate

active

07919333

ABSTRACT:
The invention relates to spherical and magnetic silicagel particles which are provided with an increased surface by incorporating SiO2colloids and produced by a method for inverse dispersion cross-linking of silica sols. The addition of certain metallic oxides to said silica sols and a subsequent tempering make it possible to obtain silicagel particles which exhibit increased nucleic acid binding properties and are used for separating a nucleic acid and isolating biomolecules.

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