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Single-stranded DNA intracellular expression system kit, HydroGel-coated slides


CytoGenix, of Houston, has begun marketing a single-stranded DNA intracellular expression system kit. Researchers can order the kit with a specified calling sequence. The kits will be available to both academic researchers under a materials transfer agreement, and licensed to commercial ventures.

“Our intracellular ssDNA expression systems can express any one of thousands of antisense, catalytic DNA, triplex-forming oligonucleotide and aptamer sequences already discovered and under investigation,” said Yin Chen, director of research for CytoGenix, in a statement.

The kit can produce ODNs continuously once introduced into cells, and can produce ssDNA of any size, the company said.

Packard BioScience Company has launched HydroGel-coated slides for making protein microarrays. The slides are coated with the company’s proprietary polyacrylamide-based gel substrate. “Proteins are embedded in this three-dimensional polymer matrix, which is hydrophilic, protein-compatible and accessible,” said Martin Sommer, as research scientist with Packard BioChip Technologies. “This microarray substrate is typically favorable for many protein binding reactions and helps to maintain protein functionality,” he added. Furthermore, the gel shows very low inherent and assay-dependent background fluorescence and has a high loading capacity, the company said. The slides were made available for shipment October 1st.

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