Molecular Diagnostics Services, Inc.
A Contract Research Organization

Identity Testing

Transmission electron microscopy (TEM) is commonly used to detect retroviruses in test articles and
to type retrovirus particles (A, B, C or D) in cell lines. At least 100 cells are observed and checked for contaminants.  If the test article is seen to be contaminated by observation of the cell line in TEM, the detection of retrovirus is then confirmed by direct assays.
TEM can also be used to characterize cell lines and to detect other contaminants such as Mycoplasma, bacteria, fungi and other viruses.

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