Nanoliter Volume Pin Tool Transfers as Measured by a Dual-Dye Absorbance Method
Poster Feb 27, 2012
Duong T. Chau; Patrick H. Cleveland, Ph.D.; John Thomas Bradshaw, Ph.D.
This poster compares the volumes of sample solutions delivered by an array of stainless steel and hydrophobic-coated pins as measured by a fluorescent-dye approach versus a dual-dye absorbance approach. The V&P Pin Tool array was used to deliver aliquots of both aqueous-based and DMSO-based FITC sample solution into test plates under controlled experimental conditions. The same testing was conducted using the dual-dye absorbance approach implemented by the ARTEL Multichannel Verification System (MVS). Each measurement method was tested side-by-side on a series of pins capable of transferring from 20 to 315 nl. The effects of solvent composition, dye concentration, and source plate volume on actual delivered volume were compared for each system. The MVS based assays and fluorescence-based assays resulted in good general agreement. Areas of divergent results appear to be due to dye concentrations effects on the liquid surface tension or solvent/dye composition. Theories explaining these results are discussed.
CiPA Phase 2 Study: validation of an automated microelectrode array (MEA) assay of hiPSC-derived cardiomyocyte electrophysiology for cardiac safety evaluationPoster
These results support the use of hSC-CM and MEA technology for preclinical assessment of proarrhythmic risk within the proposed CiPA paradigm, and, more generally, demonstrate that automation of the CM-MEA assay can achieve high reliability and throughput for cardiac risk assessment in vitro.READ MORE
A luminescent solar concentrator-based photomicroreactor for energy efficient continuous-flow photocatalysisPoster
The Luminescent Solar ConcentratorPhotomicroreactor
(LSC-PM) is an innovative device
for solar-powered continuous-flow photochemistry.