Researchers find active transporters are universally leaky

Professor of Biochemistry Emad Tajkhorshid and colleagues have discovered that membrane transporters help not just sugars and other specific substrates cross from one side of a cellular membrane to the other—water also ...

How did early primordial cells evolve?

Four billion years ago, soon after the planet cooled enough for life to begin, primordial cells may have replicated and divided without protein machinery or cell walls, relying instead on just a flimsy lipid membrane. New ...

Giving transplanted cells a nanotech checkup

Researchers at Johns Hopkins have devised a way to detect whether cells previously transplanted into a living animal are alive or dead, an innovation they say is likely to speed the development of cell replacement therapies ...

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