Gerd Baumgarten
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Agar was first introduced into the laboratory in 1881. Since then, microbiologists have depended on agar to create strong jellies. When microorganisms are streaked or plated onto this jellied surface and incubated, individual cells multiply into distinct colonies that scientists can easily observe, select, and propagate for further experiments. Many of the most important findings in biological research of the last 150 years or so — including the discovery of the CRISPR/Cas9 gene-editing tool — have been enabled by agar.4 Agarose, a derivative of agar, is also essential in molecular biology techniques like gel electrophoresis, where its porous gel matrix separates DNA fragments by size, enabling researchers to analyze and isolate specific genetic sequences.
刚做妈咪时，有个客人经常捧Maggie姐的场，一次叫4个小姐坐下陪酒。几年后，客人来店里找Maggie姐倾诉，说生意失败了，太太跑了，只留下他和两个小孩。客人哭了一整夜，Maggie姐也跟着一起哭。“那时经验少，觉得很可怜，后来见多也麻木了。”
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