This story is a bonus online element for the package on science entrepreneurship that appears in the 12 June issue of Science.
Last month, millions of people watching ABC’s prime-time television show Shark Tank learned what Christopher Sakezles says his wife already knew—that he can sweat a lot when nervous. Despite a perspiration-drenched presentation on 8 May in front of the show’s five celebrity investors—he ignored his wife’s suggestion to spray his face with antiperspirant—the polymer scientist landed the biggest deal in Shark Tank’s history.
With a life-size synthetic cadaver as a prop, Sakezles persuaded technology entrepreneur Robert Herjavec to pay $3 million for a 25% stake in SynDaver Labs, a firm that Sakezles founded a decade ago to create realistic artificial tissues, organs, and whole bodies for surgical training and other purposes.
But as fans of Shark Tank know well, not every deal struck on the show lasts once the cameras turn off. After Sakezles and Herjavec traded further information and initial terms, the partnership fell apart.
One sticking point was obvious on the show, as the investors challenged Sakezles’s plan to invest SynDaver’s immediate profits back into the company for further product development. “They wanted to replace me as CEO and this is not something I will allow at this point,” Sakezles says. (Herjavec doesn’t comment on deals that aren’t completed, one of his publicists says.)
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CLEARWATER, Fla. – 
CLEARWATER, Fla. – 
