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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 25, Number 11
BKCSDE 25(11)
November 20, 2004 

Preparation of Oligonucleotide Arrays with High-Density DNA Deposition and High Hybridization Efficiency
Jeong Won Park, Yongwon Jung, Young Hwan Jung, Jeong-Sun Seo, Younghoon Lee*
Dendrimer, DNA chip, Hybridization, Immobilization, Oligonucleotide
In DNA microarray produced by DNA-deposition technology, DNA-immobilization and -hybridization yields on a solid support are most important factors for its accuracy and sensitivity. We have developed a dendrimeric support using silylated aldehyde slides and polyamidoamine (PAMAM) dendrimers. An oligonucleotide array was prepared through a crosslinking between the dendrimeric support and an oligonucleotide. Both DNAimmobilization and -hybridization yields on the solid support increased by the modification with the dendrimers. The increase of the immobilization and hybridization efficiency seems to result from a threedimensional arrangement of the attached oligonucleotide. Therefore, our dendrimeric support may provide a simple and efficient solution to the preparation of DNA microarrays with high-density DNA-deposition and high hybridization efficiency.
1667 - 1670
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