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Gradipore, Protoveris, Zymark


Gradipore has launched a number of new precast electrophoresis gels. Its MicroGel line of gradient gels, including six different products, promises to separate proteins in 15 minutes or less. A new Tris-Tricine gel line includes nine types of gels with different concentrations and configurations. The company also added ten different gel types to both its iGels and LongLife gel lines. Gradipore’s gels are based on a patented membrane-based separation platform.

Protoveris of Gaithersburg, Md., has completed a vertical cavity surface emitting laser module (VCSEL), which is a component of a microcantilever array reader it has been developing. The company’s Micro-Optical SubAssembly for Illuminating Microcantilevers device contains a linear array of 64 individually addressable VCSELs on a 250 micron pitch. A fused silica microlens array placed over the VCSELs focuses the laser beams onto the microcantilevers. Protiveris’ arrays of microcantilvers can be used to measure interactions between proteins, antibodies, antigens, or DNA. Applications include ligand fishing, comparative protein expression profiling, and toxicity profiling.

Zymark of Hopkinton, Mass., has introduced Sciclone ALH 3000, a new liquid handling platform. The instrument can handle 96-, 384-, and 1536-well plates and comes with a new control program, Sciclone Software V3.0. It also has a head design that allows the user to switch between different dispense volumes, ranging from 100 nanoliters to 1.5 milliliters. Furthermore, the instrument has an eight-channel pipetting module with independent Z-axis control for single well access. In addition, the 20-position deck enables the integration of a variety of accessories to handle functions that would otherwise require separate devices or manual processing.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.