| 摘要 |
The present invention relates to methods and structures for preparing stem cells for use in cryopreservation methods. Stem cell colonies are provided between first and second matrix portions and are exposed to a carbohydrate-containing cryoprotecting medium and a freezing medium. The methods of the invention yield cryopreserved cells that maintain cell viability and exhibit limited cell differentiation after freezing and thawing, facilitating storage, shipping and handling of embryonic stem cell stocks and lines for research and therapeutics.
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