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Corning, Promega, Epoxide, Affymetrix, US Centers for Disease Control and Prevention

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Corning and Promega last week introduced an online tool that allows printing groups and microarray end-users to verify the quality of the cDNA labeling reaction prior to hybridization. The tool, similar to a mortgage calculator, was designed by Corning in collaboration with Promega. The calculator is an extension of mathematical formulas found in Corning’s Pronto! reagent system instruction manual.

Based on input spectrophotometry data, the calculator will make recommendations on the amount of labeled cDNA to use for hybridization. This tool also includes troubleshooting tips that cover approximately 95 percent of the potential problems that could arise during the labeling process, the company said. If results are not within an acceptable range, it will offer suggestions as to what to check in the process. The calculator is available at www.prontosystems.com.

Corning also introduced its Epoxide line of coated slides targeting the short oligo market, along with reagents for printing, hybridization, and washing. The product offerings include an Epoxide Slide Starter kit that consists of 10 slides, spotting solution and Pronto! short oligo hybridization solution. Epoxide slides are also sold in packs of 25.


Affymetrix last week announced the GeneChip Smallpox Resequencing Array, a set of seven arrays for the rapid resequencing of the smallpox genome. Developed in collaboration with the US Centers for Disease Control and Prevention, the chips contain genomic sequence common to all strains of smallpox, as well as variant DNA from different isolates.