A Little Nanotech Experiment I Carried Out...

[GenesForLife]

Made silver, copper and iron nanoparticles, and tested their effects on bacterial and yeast growth, using a method called the well diffusion method for bacteria, silver was potent against bacteria, and yeast too, while the other two had no consistent effect...



The clear zones around the wells indicate zones of active inhibition of microbial growth, I'll post the protocols if someone is interested.

[Nautilidae]

It seems that the silver particles had the biggest effect in all three dishes. Interesting.

Please post the protocols.

[Rum]

Can I show myself up as the ignoramus I am with such things? What is the actual point of this?

[natselrox]

Could you post this one at RatSkep please? I think more people would be interested there.

[QuarkyGideon]

Can I show myself up as the ignoramus I am with such things? What is the actual point of this?

Silver can kill germs. Testing the theory! Also a good idea on showing what materials to use for things that require cleanliness. Such as plasters etc.

[JimC]

Would the silver only be effective as nano particles, or would bacteria die if they landed on a solid silver surface?

[Sisifo]

Silver in any state: in dust, liquid (silver nitrate), and solid ("silverware") has been know from before the medieval times as a powerful antibiotic. It was only put aside by modern antibiotics, but it's still a very strong kill-it-all.

But careful with its use; it is a carcinogen, and its cronic exposure to its toxicity causes argyria: The body turns into a blue-grayish color. It is permanent.

[Horwood Beer-Master]

...But careful with its use; it is a carcinogen, and its cronic exposure to its toxicity causes argyria: The body turns into a blue-grayish color. It is permanent.

Aren't these effects only if actually ingested?

[Sisifo]

...But careful with its use; it is a carcinogen, and its cronic exposure to its toxicity causes argyria: The body turns into a blue-grayish color. It is permanent.

Aren't these effects only if actually ingested?

More often, or faster, yes. It also happens if breathed; it was a common problem in the silver mines and factories. Silver is not absorbed through the skin, but continuous applications in an area finally develops localized argyria.

[GenesForLife]

http://www.4shared.com/file/244407685/3 ... eport.html