BioTechniques (Jun 2002)

High-Throughput Array Production Using Precision Glass Syringes

  • J. Shieh,
  • C. To,
  • J. Carramao,
  • N. Nishimura,
  • Y. Maruta,
  • Y. Hashimoto,
  • D. Wright,
  • H.-c. Wu,
  • A. Azarani

DOI
https://doi.org/10.2144/02326mt07
Journal volume & issue
Vol. 32, no. 6
pp. 1360 – 1365

Abstract

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The advantages of using 1, 96, or 384 precision glass syringes in automated high-throughput microdispensers in creating highly uniform and reproducible DNA, protein, and organic compound array filters and slides are described. Using the Hydra® Microdispenser and TangoTM Liquid Handling system, 0.1–5 ng (in 50–300 nL) PCR-amplified, human cancer-related genes and housekeeping genes were spotted onto nylon membranes and coated slides. Protein solutions of 50μg/mL to 1 mg/mL were spotted onto coated slides or onto MaxiSorpTM 96-well plates. Up to 6144 spots/membrane and up to 1000 spots/slide were printed. The size of the spots created by glass syringes was uniform and reproducible (precision variation of less than 5%) from spot to spot and membrane to membrane. Using a Tango 384 system, a total of ten 6144-spot filters can be produced in approximately 25 min, translating into a spotting speed of 2.5 min/membrane.