The Ambiguous Colors of Nanotechnology: Kate Nichols’ nanoparticle paints have changed how she sees color

July 2015                                                                                                          Nautilus

Kate Nichols leans her delicate face against the glass of a chemical fume hood in a University of California, Berkeley lab, peering into a beaker filled with a pale yellow liquid—“like a well hydrated person’s pee,” she says, laughing. The yellow brew is a fresh batch of silver nanoparticles. Over the next week, the liquid will turn green, then turquoise, then blue as the particles morph in shape from spheroids to prisms under the influence of time and fluorescent light. Post-docs and grad students elsewhere in the nanotech lab are synthesizing nanoparticles for research on artificial photosynthesis and quantum dot digital displays. But not Nichols. She isn’t a scientist, but an artist, gripped by color.

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