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GE Healthcare, Genedata

GE Healthcare last week launched the Vivaspin sample concentrator for protein sample preparation.
The Vivaspin product has been sold by German-based firm, Sartorius Stedim Biotech, but is now also being sold by GE Healthcare. Vivaspin provides fast, non-denaturing concentration of up to 30 times from a range of volumes between 100 microliters to 20 milliliters, the company said in a statement.
Sample concentration with Vivaspin is done by membrane filtration in a single tube. The user selects the molecular weight cutoff. The sample is placed in the upper compartment of the tube and centrifugation is applied forcing the solvent through a semi-permeable membrane into the lower compartment of the tube, leaving a more concentrated sample in the upper chamber.

Genedata this week announced the release of its Expressionist 5.0 high-throughput biomarker discovery platform.
Features of the new version of the software include increase accuracy in classification analysis through the use of ROC curves, k-fold cross validation, and other new tools; enhanced “cross-omics” analysis with ExpressMap for analysis of expression data; and improved analysis of ontology relationships through a Gene Ontology browser.

The Scan

Not as High as Hoped

The Associated Press says initial results from a trial of CureVac's SARS-CoV-2 vaccine suggests low effectiveness in preventing COVID-19.

Finding Freshwater DNA

A new research project plans to use eDNA sampling to analyze freshwater rivers across the world, the Guardian reports.

Rise in Payments

Kaiser Health News investigates the rise of payments made by medical device companies to surgeons that could be in violation of anti-kickback laws.

Nature Papers Present Ginkgo Biloba Genome Assembly, Collection of Polygenic Indexes, More

In Nature this week: a nearly complete Ginkgo biloba genome assembly, polygenic indexes for dozens of phenotypes, and more.