Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1176821 | Analytical Biochemistry | 2006 | 9 Pages |
Abstract
A universal reagent 1-O-(4,4′-dimethoxytrityl)-6-aminohexanol (DTAH) is described for the estimation of surface-bound functionalities (epoxy, aldehyde, and carboxyl) required for preparation of oligonucleotide arrays (biochips). The method involves the reaction of universal reagent DTAH with surface-bound functionality under microwaves for 10 min, followed by washings to remove the excess reagent. In the subsequent step, a weighed amount of DTAH-treated surface is exposed to acid to liberate 4,4′-dimethoxytrityl cation, which is measured at 505 nm to determine the functional group loading on the surface.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Shweta Mahajan, Angad Garg, Mayurika Goel, P. Kumar, K.C. Gupta,