wallflower - 22-1-2004 at 10:22
I am fully aware that I have just enough knowledge of chemistry to mess things up completely. This whole question already deals with sci-fi.
Let's start with my beginning concepts:
1) I am writing a story about vampires.
2) I have heard that human blood carries a negative charge. I speculate that a vampire would have a negative charge, or else it would have some sort
of reaction from ingesting blood.
3) In my story, a vampire is capable of drawing energy from germs and plants.
Would a vampire, a creature that got its energy by drawing life, have a positive or a negative charge? Would it have a different charge than most of
us? Where would its weakness to light radiation come from? If I were to look for a chemical basis to its makeup, where would I *start?*
I'm thinking of just saying it's all supernatural. 
The idea of
chemically dissolving a vampire is stuck in my head, though.
guaguanco - 22-1-2004 at 10:45
My opinion:
Don't bother trying to wrap a pseudo-scientific explanation around vampires and their electrochemical needs. It's just going to look like
mumbo-jumbo. Keep it all in the supernatural realm where it belongs.
wallflower - 22-1-2004 at 11:04
Gotcha. Will do. 
vulture - 22-1-2004 at 14:26
Human blood is neutral. Cells however have a potential difference between their membranes because of Na+, K+ and H+ pumps.