Fig. 1.

Immunohistochemical test for cell purity. (a) Negative control; (b) GFAP immunohistochemical stain

Cells were incubated with GFAP antibody (PBS was used as substitute of GFAP in negative control) and observed under the microscope. Almost all cells were stained with brown in the cytoplasm and blue in the karyon (cells were not stained with brown in the cytoplasm in negative control)