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Here we present a rapid method for determining ERK and JNK activation, demonstrated using time course, concentration-dependence data and the effect of the MEK1/2 inhibitor UO126 on ERK activation obtained using the Acumen Explorer™ laser scanning cytometer analysing 384 well plates.

For improved screening capability, we have developed a cell cycle analysis method using an Acumen Explorer fluorescence microplate cytometer, capable of reading an entire 384 well microplate in about 10 minutes. The method can perform such analyses on fixed cells in situ, markedly simplifying sample preparation.

Proprietary Novel Fluorescent Proteins (NFP) from BD Biosciences Clontech include fluorescent proteins cloned from reef corals and the jellyfish Aequorea coerulescens. Fluorescent emissions of distinct proteins from this portfolio were analysed by the Acumen Explorer.

Here, laser scanning microplate cytometry has been used to provide an automated high content readout of the effects of cytostatic agents on colony formation. This approach determines colony number through the application of a spherical volume algorithm. This permits the differentiation of cytostatic effects where the number of colonies and size remains constant and cytotoxic effects where the size and number may be reduced.

In this study the design and the realization of low-cost valves suitable for the integration into disposable polymer chips is presented. In contrast to commonly used sandwich-setups a plain design consisting of a simply structured polymer chip and a cover membrane is used.

Two-dimensional electrophoresis of proteins is achieved in 500 seconds in a microfluidic system fabricated from PDMS, in which the first dimension of micellar electrokinetic chromatography and the second dimension of capillary sieving electrophoresis are coupled. By installing valves at the intersection of two dimensions, the separations are performed sequentially without interference.

High reagent costs associated with molecular biology assays are driving trends toward continued volume reduction and parallelization of assays. Several robotic pipettors are available for small-volume, multi-well pipetting, but suffer from some disadvantages. We present two projects to address some of the drawbacks.

A few years ago the first multi-component synthesis of N-(1 -haloalkyl) pyridinium halides from a thionyl halide, pyridine, and an aldehyde was described. Since that time, we have widely demonstrated that such salts can be considered as valuable synthetic equivalents of the starting aldehydes for the preparation of various classes of nitrogen heterocycles.

The data shown demonstrates that assay integrity is maintained when dispensing nanoliter volumes to 1536 well plates. Significant savings in reagent and assay costs can be realised from assay miniaturisation with the additional advantage of getting more assays and data from compound stocks before depletion.

The comPOUND® sample store (TTP LabTech) is a modular and flexible system that can be installed almost anywhere. This fully scaleable approach to compound storage also allows sample throughputs to increase with the library size to match process needs.