As the current coronavirus disease 2019 (COVID-19) pandemic stretches on, vaccines have provided a gleam of hope. This is threatened by the emergence of multiple
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Superparamagnetism occurs in ferromagnetic nanoparticles, where in the absence of a magnetic field their total average magnetism in any direction (magnetization) appears to be zero.
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Since the earliest microscopes, scientists have been on a quest to build instruments with finer and finer resolution to image a cell’s proteins—the tiny machines
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