The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 13, 2010

Filed:

Jun. 18, 2008
Applicants:

Kyu-youn Hwang, Incheon-si, KR;

Joon-ho Kim, Seongnam-si, KR;

Chang-eun Yoo, Seoul, KR;

Hun-joo Lee, Seoul, KR;

Hee-kyun Lim, Suwon-si, KR;

Sung-yung Jeong, Yongin-si, KR;

Jeo-young Shim, Yongin-si, KR;

Inventors:

Kyu-youn Hwang, Incheon-si, KR;

Joon-ho Kim, Seongnam-si, KR;

Chang-eun Yoo, Seoul, KR;

Hun-joo Lee, Seoul, KR;

Hee-kyun Lim, Suwon-si, KR;

Sung-yung Jeong, Yongin-si, KR;

Jeo-young Shim, Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 15/06 (2006.01); A01N 61/00 (2006.01); C12Q 1/68 (2006.01); G01N 33/53 (2006.01); C07H 21/04 (2006.01);
U.S. Cl.
CPC ...
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.


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