One company is aiming to be the first to sell autologous organs, starting with the human bladder. ALISON MCCOOK toured their facility and asks: Will you one day be able to buy your own bladder?

In 2003, scientists proposed a universal animal barcode: a segment of roughly 650 base pairs of a mitochondrial gene. Today, BOB GRANT reports there are more than 300,000 barcode sequences in a central repository. Can this short stretch of DNA conserve biodiversity and keep us safe from poisons?

LEWIS CANTLEY tells the story of discovering PI3 kinase, an enzyme involved in numerous cellular pathways. In the process, Cantley uncovered PI3 kinase's crucial role in cell growth and metabolism, as well as a molecular route to cancer.

Twelve years ago, Salvador Moncada decided to create a research environment that was better funded than the average academic institute but with greater freedom from the bottom line. We sent STEPHEN PINCOCK to London, where he visited the Wolfson Institute for Biomedical Research to find out whether it has achieved Moncada's vision.