Patent ID: 8202427
Filing Date: 2012-06-19
Classification: B03C,B82Y,C12N,H01F,Y10T

Abstract:
1. A method of isolating a molecule of interest from a mixture, comprising: a) providing a mixture containing a molecule of interest; b) contacting the mixture with porous, ferro- or ferrimagnetic, dried glass particles comprising silica glass precipitated or adsorbed on ferro- or ferrimagnetic iron oxide particles or pigments, wherein said porous, ferro- or ferromagnetic, glass particles retain their ferro- or ferrimagnetic properties by having been maintained at a selected temperature between about 200° C. and about 500° C. for a period of hours to dry said particles, and wherein said temperature is below the Curie temperature of said particles; c) allowing the molecule of interest in the mixture to adhere to the porous, ferro- or ferrimagnetic, glass particles; d) collecting the porous, ferro- or ferrimagnetic, glass particles containing the adherent molecule of interest by applying an external magnetic field; and e) removing the porous, ferro- or ferrimagnetic, glass particles with the adherent molecule of interest from the unbound components of the mixture.