( er is the surface area which we suspec...)NJIT study shows nanoparticles could damage plant life

er is the surface area, which we suspect is what contributes to the growth-slowing interaction between the seeds and the nanoparticles. The small size of the nanoparticles may be changed by the nanoparticles aggregating or clumping together."

But what is still not understood, said Watts, is the nature of the interaction between the nanoparticle and the root of the seed. "What is the mechanism of the interaction between the particle and the root? That we don't know as yet," he said.

Nanoparticles can be deposited into air by exhaust systems, chimneys or smoke stacks, said Watts. The particles can also mix with rainwater and snow and gradually work their way into soil. It is difficult to take results from a lab experiment and conclude that is what happens in the real world, said Watts. "But we speculate that air deposits of nanoparticles or water transport of them are ways in which nanoparticles could mix with plant life," he said.

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Source:New Jersey Institute of Technology


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