English to Russian Science Biology (-tech,-chem,micro-) bionic plants

Chloroplasts removed from plants keep photosynthesising for about four hours before reactive chemicals called free radicals degrade them. To extend their shelf life, Strano and his colleague Juan Pablo Giraldo turned to a substance called nanoceria, which can mop up the free radicals. The trick was to get the nanoparticles into chloroplasts without damaging them.

The team made a basic nanomachine out of carbon nanotubes and nanoceria. Nanotubes can be pushed into leaves, but nobody had ever managed to place them deep inside chloroplasts. Giraldo found a simple trick: coating the particles with a charged chemical, such as molecules of DNA. The charge may allow the particles to be sucked through the chloroplasts' fatty envelope, and once inside they cannot get out again.

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