The number of viable cells was compared with the plate count before and after lyophilization to calculate the survival rate.

平板计数法比较冷冻干前后的活菌数，计算存活率。

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For rapid establishment of mouse thymic stromal cell(MTSC) lines, gene transfection was used to immortalize fresh viable cells.

利用基因转染方法使细胞获得不死性，快速建立小鼠胸腺基质细胞（MTSC）系。

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The study also showed that the SVF cells produced by IntelliCell contain all of the viable cells that are manufactured by competing technologies that use enzymes, such as Cytori.

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But over the past two years, he notes, scientists have discovered that they can generate viable animals from iPS cells.

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The NIH said the scientists who developed these stem cells lines have told the agency that the stem cells are viable and can be frozen and cultured and have been through more than one population doubling.

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