Method of isolating nucleic acid using material positively...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Reexamination Certificate

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C435S007100, C435S007200, C536S023100

Reexamination Certificate

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11317949

ABSTRACT:
A method of isolating nucleic acid from a sample containing nucleic acid is provided. The method includes contacting the sample with a bifunctional material that contains an amino group and a carboxyl group and is positively charged at a first pH to allow binding of the nucleic acid to the bifunctional material; and extracting the nucleic acid at a second pH higher than the first pH from the complex.

REFERENCES:
patent: 6310199 (2001-10-01), Smith et al.
patent: 2001/0018513 (2001-08-01), Baker

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