Kentucky cancer researcher Margaret Oechsli tinkers with microscopic photography. She recently put the antibiotic powder mitomycin under her lens, as shown in her winning entry in the Small World photo contest.
Viewed through polarizing filters, the drug gave off colors that reveal its complex crystal structure.
When pursuing photomicrography for pleasure, she said in a statement, "I am more interested in an artistic/abstract image" than in a substance's medicinal merit. "I always go for visual impact."
Photograph by Dr. Margaret Oechsli/Jewish Hospital, Heart & Lung Institute/photo courtesy of Nikon Small World