I wish I could have better understood your guest Min, I’d like to ask him for a better or more in depth explanation of the difference regarding bio electricity and the kind we use in electronics.
The physics behind the electricity in biology and electronics is basically the same! I'll be writing a piece soon explaining the basics of bioelectricity and the biophysics that cause our cells to be electric. It'll be on my newsletter. Stay tuned!
My guess of what he's referring to is that in general, electricity is basically just moving charged particles around. In electronics, we move electrons around because it is pretty convenient for our purposes. In biological systems, instead of electrons, typically ions (sodium, potassium, calcium, etc.) are moved around instead.
