Arrowhead Research this week announced that it has received a notice of allowance from the US Patent and Trademark Office that it will be granted a patent on an application covering its dynamic polyconjugate delivery technology.

The patent application, No. 20120165393, is entitled “Peptide-based In Vivo siRNA Delivery System” and claims the targeted delivery of RNAi oligos to hepatocytes when administered along with co-targeted melittin delivery peptides.

The peptides, the patent application indicates, enable cellular membrane penetration.

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Dog DNA testing finds that some purebreds might not truly be purebreds, Inside Edition reports.

Mary Beckerle has returned as director of the Huntsman Cancer Institute, according to ScienceInsider.

Smithsonian Magazine reports that environmental DNA sampling can be used to track elusive organisms.

In Genome Research this week: repetitive satellite DNA in the fruit fly, transcriptome map assembly pipeline, and more.