Suspecting the living of nanoparticles, the team set out to identify the iron catalysts first. They then carried out investigations using an electron microscope to verify that the iron nanoparticles had been actually being created during catalysis. The next phase was to ensure that the iron nanoparticles were the active catalytic agents. This was finished with polymer and poisoning experiments which demonstrated that only the iron atoms on the top of a nanoparticle were active. But an additional challenge remained. Catalysts, also cheap iron types developed for these types of reaction, suffer one main downfall still, explained Sonnenberg.In this case, you would think that he will be the true face of ridicule but this is not the case. A few inquiries occasionally are good as he says.. Anti-obesity vaccine helps to keep rats trim Researchers in the Scripps Analysis Institute in California in the U.S. Have developed an anti-obesity vaccine that significantly slowed fat gain and reduced surplus fat in rats even when they over ate. The team say the vaccine signifies a breakthrough in the global fight against weight problems but warn it really is quite a distance from being tested on human volunteers, and it could not function in people.