Jeffrey Perkel has been a scientific writer since 2000, when he left academia to join the staff of The Scientist magazine as a senior editor for technology. He holds a Ph.D. in cell and molecular biology from the University of Pennsylvania, and did postdoctoral work at the University of Pennsylvania and at Harvard Medical School. Specializing in lab technologies and methods, Jeffrey’s freelance clients include the American Chemical Society, Biocompare.com, BioTechniques, Nature, Science, and The Scientist.