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694 results sorted by
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The results obtained using 7AAD staining are much clearer than those obtained using PI. Using flowcytrometry stained and unstained, transfected and non-transfected populations can be separated much more easily.
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GFP expression has been observed for up to one week as measured by light and fluorescence microscopy.
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Insect cells are cultivated at lower temperatures than E.coli or mammalian cells (S2 cells at 24°C, Sf9 cells at 28°C). Therefore they need a dedicated incubator with appropriate temperature.
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Vectors with a CMV promoter [e.g. pmaxCloning™, Lonza, Cat. No. VDC-1040] typically work fine for transient protein expression in mammalian cells, like HEK293, CHO or NSO. For insect cells, like Sf9 or Sf21, vectors with insect promoters are...
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The optimal incubation time ranges from 2-days to 6 days depending on various factors like the stability of the protein in the medium, potential toxicity of the protein, cell density and stability of the plasmid in the nucleus. To check the timepoint...
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Yes, DsRed is much less bright than GFP and is more difficult to detect by FACS and microscopy because it bleaches quickly.
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For many cell lines in suspension, especially sCHO, conventional transfection methods are very limited in efficiency. For protein production, suspension cells are favored over adherent cells because they are much easier to cultivate. Unlike...
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The generation of a stable clone often requires six months or more due to selection procedures and adaption to serum-free conditions after transfection. With the help of the Nucleofector technology suspension cells can be transfected directly in a...
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The pmaxGFP™ Vector provided in our Nucleofector™ Kits is not expressed in insect cells. We strongly recommend an insect expression vector encoding a fluorescent protein or lacZ reporter as a positive control for your experiments [e.g. Novagen™’s...
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According to QBM Cell Sciences, you can expect 12 million cortical neurons from an average E18-E19 rat pup. You can expect 4 million cortical neurons from an average mouse pup.
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