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Technology update

May 15, 2007

Porous nanoparticles deliver chemicals into plants

Although nanoparticles can be used to deliver DNA, drugs and other molecules into animal cells, this is not so easy to do in plants because of their cell walls, which act as barriers. Now, researchers at Iowa State University in the US have succeeded in overcoming this problem by using silica nanoparticles with a honeycomb shape. The nanoparticles have pores measuring just 3 nm across and can transport DNA and chemicals into isolated cells and intact leaves. The breakthrough result could find applications in plant biotechnology and might even be used to improve crops in the future.

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