Nanoparticles made-to-measure: Aerosols prove to be indispensable for nanotechnology

Is it possible to make platinum particles with a diameter of less than eight nanometres? That was the question Jan Marijnissen at the aerosol lab of Delft ChemTech was asked. Together with graduate student Jan van Erven, the famous aerosol expert Sheldon Friedlander of the University of California (UCLA), and the University of Karlsruhe, Germany...

Focused spraying: Fighting plant disease without making a mess

Each year in the Netherlands alone, some 8,000 tons of pesticides are sprayed onto crops. Some of this is used inside greenhouses, on plants, flowers, and fruit. The problem with spraying is that a large part of the pesticide, something like 80%, ends up anywhere but on the plant. This is not only a waste of material, it also puts the...

Er zit miltvuur in de lucht: Deeltjesanalysator 'herkent' gevaarlijke bacterie à la minute

There's anthrax in the air: Particle analyser recognises dangerous bacteria in an instant

Dr.Ir. Jan Marijnissen, particle technologist with TU Delfts Chemical Technology section, has been busy developing a particle sensor for fourteen years now. Suddenly his work has become more topical than ever in the wake of the terrorist attacks in the States. A chemical particle sensor has meanwhile been launched on the market, and now the...

Luchtzuiveraars soms gevaarlijk voor gezondheid: Hoogspanning tovert druppels om in vernevelaar