Do you have a reference to the paper? If the same could be done for amino acids, starting from feces, and if the electro-biological transducer could be mineatu

Do you have a reference to the paper? If the same could be done for amino acids, starting from feces, and if the electro-biological transducer could be mineaturized people could get it installed in their stomachs & bowels, with an extension cord coming out the exit orifice, like a vacuum cleaner...