15/11/2023

Scientists 3D-print hair follicles in lab-grown skin

A team led by scientists at Rensselaer Polytechnic Institute has 3D-printed hair follicles in human skin tissue cultured in the lab. This marks the first time researchers have used the technology to generate hair follicles, ...

Study discovers colliding ribosomes activate RNA repair

Aldehydes are toxic compounds that are produced in the body by metabolic processes, especially upon alcohol consumption. They are dangerous because they bind to cellular macromolecules, such as DNA, RNA, and proteins, and ...

The quark model: A personal perspective

The idea that protons and neutrons were composed of even smaller particles, with non-integral electric charges, was proposed in 1963/64 by Andre Petermann, George Zweig and Murray Gell-Mann, who dubbed them "quarks." It was ...

Bivalve mollusks may hold the secret to a longer life

For centuries, humans pursued the "fountain of youth" in the quest for longer lives. More recently, curiosity has been reignited among the scientific community thanks to genome sequencing technologies that are facilitating ...

With unprecedented flares, stellar corpse shows signs of life

After a distant star's explosive death, an active stellar corpse was the likely source of repeated energetic flares observed over several months—a phenomenon astronomers had never seen before, a Cornell-led team reports ...

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