Many of Eisenberg's stories feature his character Professor Emmet Duckworth, a research scientist and two-time winner of the Nobel Prize. Duckworth's "bright ideas seem great at first but always end in disaster"Gateways to Forever: The Story of the Science-fiction Magazines from 1970 to 1980 by Michael Ashley, Liverpool University Press, 2007, pages 49-50. with one of the professor's many inventions being "an addictive aphrodisiac clocking in at 150,000 calories per ounce —along with a propensity to turn those taking it into walking bombs." A number of the Duckworth stories were collected in Eisenberg's short story collection, The Best Laid Schemes, published in 1971 by MacMillan.
