冷冻电镜技术的思路非常巧妙:将含生物分子的溶液制成薄薄的水膜,在毫秒之内投入到零下180摄氏度左右的液态乙烷中,使其瞬间形成“玻璃态冰”——既不膨胀结晶也不蒸发,将分子“冻结”为瞬间姿态。这种“速冻”方式就像按下暂停键,把生命分子的活动定格在某一帧。
«Европа бьет сама по себе». Страну НАТО заподозрили в организации атаки на российский газовоз. Новые подробности атаки на судно20:45
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Экс-посол Британии жестко высказался об агрессии США против Ирана08:51