Magnetic particles for purifying nucleic acids

US6919444B2 · kind B2 · utility

Assignee

• Roche Diagnostics GMBH · DE

Inventors

• Herbert Harttig · Neustadt, DE
• Michael Riedling · Saarburg, DE
• Martin Mennig · Idar-Oberstein, DE
• Helmut Schmidt · Riegelsberg, DE

Key dates

• Filing date: Feb 20, 2003
• Grant date: Jul 19, 2005
• Expiry date: Mar 3, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2996
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Preparations of particles having a glass surface, wherein more than 75% by weight of these particles have a particle size between 0.5 μm and 15 μm and a glass surface which contains between 2 and 6 mole % zinc oxide, have proven to be particularly advantageous in processes for the purification of nucleic acids. This in particular results in an increased nucleic acid yield.