A multi-institute team of Spanish and German researchers has developed functionalized gold nanoparticles capable of delivering siRNAs specifically into cancer cells in vivo.

To date, a number of groups have used such nanoparticles as efficient, non-toxic carriers for siRNAs, yet the majority of these have only been tested in cell cultures against reporter genes, the investigators wrote in Biomaterials.

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National Institutes of Health Director Francis Collins appears before a House subcommittee to discuss his agency's budget request.

In PNAS this week: Akt3 amplification in glioma progression, Tibetan Plateau frog genome, and more.

The US Supreme Court has declined to review a decision involving the use of "inadvertently shed" DNA in a police investigation and subsequent conviction.

A panel at the New York Times discusses anonymity and privacy of users of 23andMe's services when access to its database is offered for research.