Lateral flow device construction

FIGURE 20.1 Construction of a lateral flow device. C, control line T, test line antibody conjugate. 

A third part of an electric circuit is a rectifier, a device that allows the flow of electrons in only one direction. As early as 1974, two researchers, Ari Avram at the IBM Thomas J. Watson Research Center and Mark A. Ratner at Northwestern University, suggested the possibility that single molecules might he constructed that would operate as rectifiers. Some 23 years later, that goal was achieved by a team of researchers at the University of Alabama at Tuscaloosa led by Robert M. Metzger. 

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