So I was checking my cells and there appeared to be very large cell-aggregates, where the aggregated cells were smaller than the normal cells. The light of the microscope went through them more than the normal cells, so they appeared to be yellowish. I researched images on the cells (NTera-2 Cells), and found that the cells have a tendency to differentiate without the induction by retinoic acid (the only article I found that mentioned that they could naturally differentiate). The clusters appear like stem cell spheres (neurospheres).
I checked the cell media, and it did not appear cloudy, nor did I see bacteria.
The following images are not my cell images.
What are the small black dots, they look like bacteria?
What contamination could that be?
Edited by NeuroADResearch, 30 October 2013 - 01:01 PM.