Profile: OZ Biosciences develops and renders delivery systems of bioactive materials to study the functions of genes, proteins & other molecules. We offer products for DNA transfection, SiRNA transfection, virus application, protein delivery and assay kits. We offer Bradford protein assay kits, B-gal assays, X-Gal staining kit, GeneBlaster kits, DNA Markers and shRNA. Our lipid-based reagents used for lipofection are generally composed of synthetic cationic lipids that are often mixed with helper lipids such as DOPE (L-a-dioleoyl phosphatidyl-ethanolamine) or cholesterol, and these lipids mixture assembles in liposomes or micelles with an overall positive charge at physiological pH & are able to form complexes (lipoplexes) with negatively charged nucleic acids through electrostatics interactions.