assay ready Frozen Instant Cells

For long it has been a common understanding that mammalian cells need time to recover from cryopreservation and therefore have to be passaged in culture a couple of times before they can be used in any cell-based application. About 15 years ago this dogma tumbled for the first time - cryopreserved cells were used in a drug discovery screening campaign instantly after thawing, without prior passaging or cultivation. Over the time the acceptance for this new approach grew and the way got paved for a broad range of different applications. The advantages derived from the fact that the cell expansion can now be timely and spatially separated from their actual use became obvious.