This question is part of the following Ask The Expert session:
The Proteome Profiler Arrays would be a good option for you. R&D Systems has a Human Pluripotent Stem Cell Array that detects 15 pluripotent and germ layer-specific markers simultaneously. This array requires cell lysates rather than cell culture supernatants, which are used for non-invasive monitoring of stem cells. R&D also offers a number of pluripotent and germ layer staining kits which can be viewed here.