NuGen of San Carlos, Calif., on Wednesday launched its Ovation Biotin System for RNA amplification and labeling, optimized for use on the Affymetrix platform. The product starts with as little as five nanograms of RNA starting material to yield sufficient RNA for at least one U133 GeneChip-brand array and enable the use of rare sample materials as small biopsies and micro-dissected samples. The product uses NuGen’s technology for post amplification fragmentation and direct chemical attachment of biotin to cDNA amplification products.