Liz Core writes at Grist:
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Nanoparticles are basically the X-Men of the molecular world, in that they are unpredictable, elusive, and come in a dizzying array of forms.
So it should come as no surprise that scientists are now researching a new type of nanotechnology that could revolutionize modern farming: nanopesticides. (Cue: Ooo, ahh) Recentstudies have suggested that the nano-scale pesticide droplets could offer a range of benefits including raising crop durability and persistence, while decreasing the amount of pesticide needed to cover the same amount of ground. But they’re also looking at the hefty potential for trouble: No one knows if the nanopesticide particles will seep into water systems, and, if they do, if they will harm non-pests like bees, fish, and even humans.
As we’ve written before, nanotechnology involves engineering particles that are tinier than the tiniest tiny. (More technically, we’re talking anything measured in billionths of a meter.) Scientists find this useful, since most substances behave much differently at that scale.