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Journal of Biomolecular Screening
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High-Quality Cost-Effective Compound Management Support for HTS

Maximiliano Zaragoza-Sundqvist

Department of Lead Generation, AstraZeneca R&D, Mölndal, Sweden, maximiliano.zaragoza-sundqvist{at}astrazeneca.com

Hans Eriksson

Department of Lead Generation, AstraZeneca R&D, Mölndal, Sweden

Mattias Rohman

Department of Lead Generation, AstraZeneca R&D, Mölndal, Sweden

Peter J. Greasley

Department of Lead Generation, AstraZeneca R&D, Mölndal, Sweden

Four years ago, the first acoustic droplet ejectors (ADEs) were launched on the market, providing a new generation of high-throughput noncontact liquid handlers that outclassed traditional contact instruments in almost every respect. This introduction of noncontact dispensing has triggered radical changes to the screening/compound management interface. Higher quality is achieved through greater accuracy and precision, whereas lower sample volumes can be used, and 1536 plate formats have become a reliable reality. Prior to the ADE instrument launch, 1536 assay-ready plate preparation was a high-effort enterprise requiring users to spend time developing liquid-handling methods along with daily fine-tuning of instruments to reach the desired level of performance. By overcoming the nanoliter dispensing hurdle and successfully transferring assays to high-density formats, a new dimension for cutting costs has emerged. Once the screening customer has adapted to this new world, the rules of supply can also change, with the traditional automated plate store no longer being necessary when the compound library can be stored in 1536 plates. Processing efficiency recently has been further supported by innovative new automation-friendly solutions such as plate desealers, prolonging the life span of working plate copies. Both cost and waste control have never had a higher profile, and noncontact dispensing contributes to these important areas. In some processes (e.g., when piercing septa), contact dispensing remains the best option, but cost control is still essential, and an innovative solution to minimize DMSO consumption from tip washing has had a big impact on consumable budget without compromising quality. (Journal of Biomolecular Screening 2009:509-514)

Key Words: compound management • high-throughput screening • acoustic dispensing • desealer • liquid handling

This version was published on June 1, 2009

Journal of Biomolecular Screening, Vol. 14, No. 5, 509-514 (2009)
DOI: 10.1177/1087057109336589
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