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On-chip Isotachophoresis for Separation of Ions and Purification of Nucleic Acids
Published on: March 2, 2012
Tunable fractionation of nucleic acids.
Md Salimullah1, Sachiko Kato, Mitsuyoshi Murata
1Functional Genomics Technology Team, Omics Science Center (OSC), RIKEN Yokohama Institute, Kanagawa, Japan.
Biotechniques
|January 1, 2010
Summary
We developed a rapid DNA purification method using cetyltrimethylammonium bromide (CTAB) to remove PCR artifacts and enzymes. This technique effectively isolates DNA amplicons for downstream applications like library preparation.
Area of Science:
- Molecular Biology
- Biochemistry
- Genetics
Background:
- Polymerase Chain Reaction (PCR) and ligation reactions generate DNA fragments.
- Subsequent experimental steps often require purified DNA, free from reaction artifacts.
- Existing purification methods can be time-consuming or inefficient at removing specific contaminants.
Purpose of the Study:
- To develop a novel, rapid method for selective DNA purification.
- To efficiently remove PCR and ligation artifacts from DNA samples.
- To ensure sufficient recovery of purified DNA amplicons for downstream applications.
Main Methods:
- Utilized cetyltrimethylammonium bromide (CTAB), a cationic detergent, for DNA purification.
- Incorporated urea and controlled high-salt (NaCl) concentrations to enhance selectivity.
- Applied the method for separating DNA fragments from short PCR artifacts and primers.
Main Results:
- Achieved complete removal of short PCR artifacts, primers, enzymes, and buffer components.
- Successfully recovered sufficient quantities of purified DNA amplicons.
- Demonstrated the method's effectiveness in rapid separation of DNA fragments.
Conclusions:
- The CTAB-associated purification method offers a fast and effective way to purify DNA.
- This technique is suitable for removing common artifacts in molecular biology workflows.
- The purified DNA is adequate for subsequent library preparation and other experiments.
- The method shows potential for fractionating nucleic acids from various reaction types.
