Haynes's lab is the first to success-fully isolate an individual platelet under a microscope, place a Christy Haynes
University of Minnesotaminuscule electrode onto it, and measure the messenger molecules released when the cell is chemically stimulated. This technique has allowed Haynes a first glimpse into how platelets talk to each other and how scientists might manipulate them to control blood-clot formation, develop new therapeutic treatments for platelet disorders, and perhaps even stop the spread of tumor cells. "A lot of people think that platelets act like a Trojan horse," Haynes says. "They circulate through your bloodstream, cloaking the cancer cell, and your body doesn't detect it."