Abstract: (A1+A3, B1?B3, C1?C3) Disclosed herein are microfluidic devices having an array of microfluidic valves and other components to meet the requirement of an antibody array for analyte detection. The microfluidic valves disclosed herein enable simultaneous detection of multiple analytes in a sample. One embodiment exemplified herein pertains to a microarray that is in the format of a sandwich assay, each of which comprises a capture antibody, analyte, and secondary detection antibody conjugated with a fluorescent dye or an enzyme or another moiety to facilitate detection. Methods of using microfluidic valves in an array for simultaneously detecting multiple analytes is also disclosed.

Abstract: Provided is a battery comprising a first compartment, a second compartment and a barrier separating the first and second compartments, wherein the barrier comprises a proton transporting moiety.