Just found it on Khan Drop channel. https://trudreadz.com/2020/02/02/scientists-are-making-batteries-out-of-melanin-the-voltage-we-got-out-was-high/ https://bigthink.com/technology-innovation/eumelanin-implant?rebelltitem=1#rebelltitem1
Shalom Sister, just checking on the page and see we both posted the same...Great minds works as one!!!!!