Monday, February 9, 2026

Scientists were wrong for decades about DNA knots

Scientists have discovered that DNA behaves in a surprising way when squeezed through tiny nanopores, overturning a long-held assumption in genetics research. What researchers once thought were knots causing messy electrical signals turn out to be something else entirely: twisted coils called plectonemes, formed as flowing ions inside the pore spin the DNA like a phone cord. These twists can linger and grow as DNA moves through, leaving clear electrical fingerprints.

from Top Health News -- ScienceDaily https://ift.tt/gf5z7NM

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New injectable treatment helps the brain rebuild after stroke

Duke researchers developed an injectable scaffold that helped stroke-damaged brains grow new blood vessels, support nerve regrowth, and reco...