[HPF]

If I put a piece of metallic silver like this
http://www.petrastechshop.com/sikibyia.html
in an acrylic container (volum 5dl) with 3 dl distilled water, will silver ions be released to such a concentration level that it will prevent biofouling (biofilm)? Acrylic container has a cover that minimize the amount of oxygen to enter the water.

Question is somewhat backward as biofouling won't be a problem in distilled water, but think of it as if I later add 1 dl water from a nearby river and the container is exposed to sunlight. Will I see biofouling or will the water have a concentration of silver ions that will prohibit any biofouling?

I know people in ancient times use silver coins as biocide for potable water, but that was natural water with minerals and salts. Also, coins and containers were maybe made of copper.

[Borek]

Oxygen present in water should oxidize some small amounts of silver, that can be calculated using Nernst equation. But you will need initial oxygen concentration, that's a function of temperature and time distilled water was in contact with air. At the same time it will be a function of pH, so presence of dissolved carbon dioxide starts to play a role. Many assumptions to take.