He wanted to make a gel for people to put on their skin, so they don't have to take a bath.
他想做一种人们可以涂在皮肤上的凝胶,这样他们就不用洗澡了。
3
When this gel is placed into a bath and an electrical charge applied across the gel, the biomolecules migrate and separate according to size in proportion to the amount of charge they carry.