An alternative direct compound dispensing method using the HP D300 digital dispenser.

TitleAn alternative direct compound dispensing method using the HP D300 digital dispenser.
Publication TypeJournal Article
Year of Publication2013
AuthorsJones RE, Zheng W, McKew JC, Chen CZ
JournalJournal of laboratory automation
Volume18
Issue5
Pagination367-74
Date Published2013 Oct
Abstract

Evaluation of compound activity in vitro is crucial to drug discovery efforts and require that the compounds be accurately and reliably titrated and dispensed to the assay wells. The HP D300 dispenser uses inkjet technology to achieve small-volume dispensing that allows concentration-response testing using the direct dilution paradigm. Although inkjet technology has been long in existence, it is new to the field of screening and drug development. We have evaluated the D300 dispenser in a biochemical assay, a cell-based reporter gene assay, and a cytotoxicity assay. The software for this instrument is user friendly, and the compound-dispensing process is streamlined. However, a limitation is that this dispenser is currently applicable to only 96-well and 384-well plate formats and not to 1536-well high-density plates. Our results indicate that the D300 generates clean and reproducible results that correlate with those produced with more commonly used instruments such as the pin tool. We found that the instrument is useful and can improve the throughput of compound dispensing in 96-well and 384-well plates.

DOI10.1371/journal.pntd.0002460
Alternate JournalJ Lab Autom