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GE Healthcare, LI-COR Biosciences

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GE Healthcare this week introduced the HiPrep Sephacryl S-400 and HiPrep Sephacryl S-500 HR pre-packed columns.
 
The columns offer a “fast, reproducible, and convenient” solution for purifying large proteins, polysaccharides, and macromolecules with extended structures, the company said in a statement. The columns are available in two sizes — 16/60 for sample volumes up to 5 milliliters, and 26/60 for sample volumes up to 13 milliliters.
 

 
LI-COR Biosciences this week launched the Odyssey Two-Color Protein Molecular Weight Marker for detection on the Odyssey Infrared Imaging system.
 
The marker is pre-stained and fluoresces in the 700 and 800 nm channels of the Odyssey system. The marker is designed for use with polyacrylamide gels and can be used to visualize the progress of protein separation during electrophoresis. It contains 10 proteins in sizes from 10 kDA to 250 kDa.

The Scan

Booster for At-Risk

The New York Times reports that the US Food and Drug Administration has authorized a third dose of the Pfizer-BioNTech SARS-CoV-2 vaccine for people over 65 or at increased risk.

Preprints OK to Mention Again

Nature News reports the Australian Research Council has changed its new policy and now allows preprints to be cited in grant applications.

Hundreds of Millions More to Share

The US plans to purchase and donate 500 million additional SARS-CoV-2 vaccine doses, according to the Washington Post.

Nature Papers Examine Molecular Program Differences Influencing Neural Cells, Population History of Polynesia

In Nature this week: changes in molecular program during embryonic development leads to different neural cell types, and more.