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联硕生物
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Dulbecco's Modified Eagle Medium (DMEM) is a widely used basal medium for supporting the growth of many different mammalian cells. Cells successfully cultured in DMEM include primary fibroblasts, neurons, glial cells, HUVECs, and smooth muscle cells, as well as cell lines such as HeLa, 293, Cos-7, and PC-12. Life Technologies offers a variety of Gibco® DMEM modifications for a range of cell culture applications. Find the right formulation using the media selector tool.
This DMEM is modified as follows:
| With | Without |
| • High Glucose | • Sodium Pyruvate |
| • L-glutamine | • HEPES |
| • Phenol Red | • Sodium Bicarbonate |
The complete formulation is available.
DMEM is unique from other media as it contains 4 times the concentration of amino acids and vitamins than the original Eagle's Minimal Essential Medium. DMEM was originally formulated with low glucose (1 g/L) and sodium pyruvate, but is often used with higher glucose levels, with or without sodium pyruvate.
Product Intended Use
For in vitro diagnostic use. CAUTION: Not for human or animal therapeutic use. Uses other than the intended use may be a violation of local law.
cGMP Manufacturing and Quality System
Gibco® DMEM is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 and ISO 9001 standards. For supply chain continuity, Life Technologies offers a comparable Gibco® DMEM product made in our Scotland facility (52100-021). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.
DMEM contains no proteins, lipids, or growth factors. Therefore, DMEM requires supplementation, commonly with 10% Fetal Bovine Serum (FBS). DMEM uses a sodium bicarbonate buffer system (3.7 g/L) and therefore requires a 5-10% CO2 environment to maintain physiological pH.
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文献和实验干粉灭火剂是由灭火基料（如小苏打、碳酸铵、磷酸的铵盐等）和适量润滑剂（硬脂酸镁、云母粉、滑石粉等）、少量防潮剂（硅胶）混合后共同研磨制成的细小颗粒，用二氧化碳作喷射动力。喷射出来的粉末，浓度密集，颗粒微细，盖在固体燃烧物上能够构成阻碍燃烧的隔离层，同时析出不可燃气体，使空气中的氧气浓度降低，火焰熄灭。8kg的灭火机能喷射14～18秒，射程约4.5m。它适用于扑灭油类、可燃性气体、电器设备等物品的初起火灾。
注意事项 1.认真阅读说明书。说明书都注明干粉不包含的成分，常见的有NaHCO3、谷氨酰胺、丙酮酸钠、HEPES等。这些成分有些是必须添加的，如NaHCO3、谷氨酰胺，有些根据实验需要决定。2.配制是要保证充分溶解，NaHCO3、谷氨酰胺等物质都要等培养基完全溶解之后才能添加。3.配制所用的水应是三蒸水，离子浓度很低。4.所用器皿应严格消毒。5.配制好的培养基应马上过滤，无菌保存于4度。6.液体培养基主要是为了科研工作的方便而设计的培养基，它是一种灭菌后保证无菌的溶液，必要时可制成无内毒素
相关专题 细胞培养基的配制 细胞培养专题 注意事项 1. 干粉不包含的成分，常见的有NaHCO3、谷氨酰胺、丙酮酸钠、HEPES等。这些成分有些是必须添加的，如NaHCO3、谷氨酰胺，有些根据实验需要决定。 2. 配制是要保证充分溶解，NaHCO3、谷氨酰胺等物质都要等培养基 完全溶解之后才能添加。 3. 配制 所用的水应是三蒸水，离子浓度很低。 4. 所用器皿应严格消毒。
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