Scientists use light to join nanoparticles into new materials

Researchers at Argonne National Laboratory shined a low-power laser - similar in intensity to ones used in office laser pointers - into a solution of gold and carbon nanoparticles suspended in water. Unexpectedly, they found that the carbon nanoparticles decomposed or deformed to create a kind of "glue" that enabled the creation of long gold and carbon chains that assembled continuously wherever the laser was pointed.

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