Image Transcription: Scientists have found a way to ‘tattoo’ living cells with gold.
A mouse fibroblast “tattooed” with gold nanodots, highlighted with false color.
Link to the article here:
https://www.sciencealert.com/scientists-have-found-a-way-to-tattoo-living-cells-with-gold
You wouldn’t be able to see this
It seemed fairly visible on the brain they tested it on