DSC_0072 Published October 22, 2013 at 1839 × 1591 in Ehrlich Staining: a simple off-the-shelf/DIY Bio stain for bacteria, microorganisms, DNA and human nuclei My own saliva stained with methylene blue. Personal buccal epithelial cells are visible as large pale blue cells with a dark staining nucleus. Numerous bacteria are visible either attached the cells or in other parts of the stained sample. 1000x ????????????????????????????????????