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- Title
Quantitative analysis of specific target DNA oligomers using a DNA-immobilized packed-column system.
- Authors
Pack, Seung; Heo, Tae-Hwe; Devarayapalli, Kamakshaiah; Makino, Keisuke
- Abstract
lthough a DNA-immobilized packed-column (DNA-packed column), which relies on sequence-dependent interactions of target DNA or mRNA (in the mobile phase) with DNA probes (on the silica particle) in a continuous flow process, could be considered as an alternative platform for quantitative analysis of specific DNA to DNA chip methodology, the performance in practice has not been satisfactory. In this study, we set up a more efficient quantitative analysis system based on a DNA-packed column by employing a temperature-gradient strategy and DMSO-containing mobile phase. Using a temperature-gradient strategy based on T values of probe/target DNA hybridizations and DMSO (5%)-containing mobile phase, we succeeded in the quantitative analysis of a specific complementary target distinguishable from non-complementary DNA oligomers or other similar DNA samples. In addition, two different target DNA oligomers even with similar T values were separated and detected quantitatively by using a packed column carrying two different DNA probes.
- Subjects
MESSENGER RNA; DNA; QUANTITATIVE chemical analysis; DIMETHYL sulfoxide; OLIGOMERS
- Publication
Analytical & Bioanalytical Chemistry, 2011, Vol 401, Issue 2, p667
- ISSN
1618-2642
- Publication type
Article
- DOI
10.1007/s00216-011-5129-6