title: System for preparing microhybridization arrays on glass slides.
abstract: We describe the construction and operation of an arrayer system to produce patterns of DNA sequences for analytical uses such as microarrays of oligonucleotide on microchips. Detailed documentation on construction is provided, as well as added electronic circuitry and the software for the instrument, including programs to machine its own working surface as well as those to operate it as an arrayer. Its cost is modest, and with a single droplet tip it can deposit 96 spots per slide on 32 slides in about 200 min (readily upgraded to higher speeds). As currently operated, it can place 400 spots in 1 cm2, and this density, too, can be increased easily. We discuss design features and performance to demonstrate utility and flexibility.
authors.affiliation: Department of Chemical Engineering, University of Pennsylvania School of Engineering and Applied Science, Philadelphia 19104, USA. graves@seas.upenn.edu
authors.forename: D J
authors.initials: DJ
authors.lastname: Graves
authors.forename: H J
authors.initials: HJ
authors.lastname: Su
authors.forename: S E
authors.initials: SE
authors.lastname: McKenzie
authors.forename: S
authors.initials: S
authors.lastname: Surrey
authors.forename: P
authors.initials: P
authors.lastname: Fortina
mesh_terms: D008832:Microchemistry / Q000191:economics / Q000295:instrumentation / Q000379:methods; D009841:Oligonucleotides / Q000737:chemistry; D017422:Sequence Analysis, DNA / Q000191:economics / Q000295:instrumentation* / Q000379:methods
chemical_list: D009841:Oligonucleotides