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Updated: Jun 14, 2026
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High-Density DNA and RNA microarrays - Photolithographic Synthesis, Hybridization and Preparation of Large Nucleic Acid Libraries
Published on: August 12, 2019
In situ synthesis of DNA microarray on functionalized cyclic olefin copolymer substrate
Ishtiaq Saaem1, Kuo-Sheng Ma, Alexandria N Marchi
1Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
ACS Applied Materials & Interfaces
|April 2, 2010
Summary
Researchers developed a novel method for in situ DNA synthesis on cyclic-olefin copolymer (COC) microarrays. This technique enables high-quality DNA microarrays on cost-effective COC substrates for bioanalytical applications.
Area of Science:
- Materials Science
- Biotechnology
- Nanotechnology
Background:
- Cyclic-olefin copolymers (COC) offer a cost-effective alternative to glass or silicon for microdevice fabrication.
- COC's inert and hydrophobic nature presents challenges for direct biomolecule immobilization.
Purpose of the Study:
- To develop a method for in situ DNA oligonucleotide microarray synthesis on COC substrates.
- To enhance the utility of COC for microarray applications in bioanalysis and biofabrication.
Main Methods:
- Prepatterning COC surfaces with hydrophilic SiO(2) thin films using RF sputtering.
- Conducting in situ DNA synthesis on SiO(2) features via inkjet printing of phosphoramidite chemistry.
- Utilizing inkjet DNA synthesizer for precision delivery of reagents.
Main Results:
- Achieved high-quality DNA synthesis on the SiO(2)-COC microarray.
- Demonstrated superior stability and performance in hybridization assays and thermal cycling.
- Successfully cleaved DNA oligonucleotides for DNA origami nanostructure construction.
Conclusions:
- The developed method enables high-quality, low-cost DNA microarrays on COC.
- This approach supports the development of integrated microfluidic microarrays.
- The method provides a foundation for diverse bioanalytical and biofabrication applications.
