Nucleic Acids Research, 2001, Vol. 29, No. 2 e2
© 2001 Oxford University Press
Chemical nanoprinting: a novel method for fabricating DNA microchips
Genomics Technology Unit, Center for Genomics Research, Karolinska Institutet, 17177 Stockholm, Sweden
We have developed a novel cost-effective procedure, namely chemical nanoprinting, for oligonucleotide or cDNA chips manufacture. In this thermo-controlled process, the oligonucleotides, covalently attached to a highly loaded master-chip through disulfide bonds, are chemically transferred to the acrylamide layer mounted on a print-chip. It is demonstrated here that multiple identical print-chips can be produced from a single master-chip. This duplication process is a few hundreds of times faster than any existing methods and the speed of process and cost incurred are independent of the scale of the DNA chips.
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