US$1 banknote was imprinted on an agar gel plate containing a nutrient medium for 5 minutes and removed. Bacteria and fungal spores transferred by the imprinting process started to grow on the agar plate (poured on a large blue plate) and formed colonies. Here is the image after 5 days of development. Bacterial colonies look like drops of a liquid (compact and shiny) but fungal colonies look grainy as the hyphae grow each separately - a small black and a large dark green mold colony appear near the right margin. The microorganisms (germs) grew only where the dollar bill was in contact with the agar gel. The image indicates that banknotes harbor a wide variety of microorganisms and that it is a good idea to wash one's hands after handling paper money | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / SciMAT |
Bildgröße: | 3872 px × 2592 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
|