A sandwich of two graphene layers can conduct electrons without resistance if they are twisted at a ‘magic angle’’, physicists have discovered. The finding could prove to be a significant step in the decades-long search for room-temperature superconductors.
Source: nature.com
Since the ’50s, scientists have chased the promise of clean energy from sun-like reactions between deuterium and tritium, the plentiful isotopes of hydrogen. This carbon-free energy, achieved at temperatures of 360 million degrees Fahrenheit, would offer a great way to heat water and, in turn, spin turbines to create countless kilowatts of electricity.
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A DNA nanorobot programmed to transport blood-coagulating proteins specifically into tumours so that their blood supply is blocked could make for a promising new cancer therapeutic. The new system, which literally “starves” the tumour, only destroys cancer cells and not surrounding tissue. It has been shown to work on breast, lung, melanoma and ovarian tumours in mice and Bama miniature pigs.
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MIT researchers have come up with a new way to measure electrical activity in the brain. Their new light-sensitive protein can be embedded into neuron membranes, where it emits a fluorescent signal that indicates how much voltage a particular cell is experiencing. This could allow scientists to study how neurons behave, millisecond by millisecond, as the brain performs a particular function.
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