ABSTRACT
The previous chapter dealt exclusively with microdevices that process cell-free samples or cell extracts-in other words, the biological material was not alive, which simpli-es both its maintenance and its readout. A whole new set of challenges is presented to the experimenter when the measurement or question requires that the interrogated sample be kept alive, as we will see in the next three chapters. In this chapter, we will look at applications that have traditionally concerned the biotechnology industry, that is, primarily with a health care device focus.
