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Marina Issued Japanese Patent on Delivery Tech

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Marina Biotech this week announced that it has been issued a patent by the Japanese Patent Office covering a proprietary nucleic acid condensing and delivery peptide motif, as well as its use with therapeutic nucleic acids.

The patent, application No. 2007-509522, "significantly enhances the company's … intellectual property portfolio covering key platform technologies including siRNA constructs, delivery and chemistry used for the development of RNAi-based therapeutics," Marina President and CEO Michael French said in a statement. "We expect to see continued issuances in our patent estate."

The Scan

Dropped Charges

The US Justice Department has dropped visa fraud charges against five Chinese researchers, according to the Wall Street Journal.

More Kids

The Associated Press says Moderna is expanding its SARS-CoV-2 vaccine study to included additional children and may include even younger children.

PNAS Papers on Rat Clues to Human Migration, Thyroid Cancer, PolyG-DS

In PNAS this week: ancient rat genome analysis gives hints to human migrations, WDR77 gene mutations in thyroid cancer, and more.

Purnell Choppin Dies

Purnell Choppin, a virologist who led the Howard Hughes Medical Institute, has died at 91, according to the Washington Post.