Figure 1.

Functional partitioning of a biosensor. Schematic view of the parts that compose a biosensor, conceptually and physically, along the information flow from the analyte to the user. Each functional partition is indicated with a specific color. For each partition, we indicate qualities that are crucial for implementation in low-resource settings, and a list of components/properties specific to that partition. Elements marked with * are the ones illustrated in the picture on the right, which compose an example of a portable biosensor described in [19].