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Methods Enzymol. 2006;410:168-89.

Printing your own inkjet microarrays.

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  • 1Institute for Systems Biology, Seattle, Washington, USA.


DNA arrays are now the tools of choice for high-throughput DNA/RNA analysis. While many technologies exist for mass-producing arrays, there are just a few ways to economically produce small batches of custom oligonucleotide arrays for prototyping experiments and specialized applications. Inkjet printing, adapted from the world of office electronics to the world of molecular biology, is one such method. With programmable oligonucleotide synthesizers, scientists can prototype DNA array assays quickly and inexpensively. A benchtop inkjet arrayer-nicknamed POSAM-can be built by most skilled molecular biology laboratories. Inkjet arrays can fulfill the changing needs of those studying the complex network of relationships in systems biology.

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