| abstract |
Devices, systems, methods, and kits are provided for performing separation, immobilization, blotting, and/or detection of analytes from biological samples. In some embodiments, the devices are constructed from two solid substrates with surfaces in contact. The devices include a plurality of channels formed from indentations in these surfaces. The indentations can be aligned with each other across the interface between the substrates, and realigned by shifting or sliding one substrate relative to the other. In some embodiments, the devices are constructed from three layers of a solid substrate. A separation channel in the middle layer of the device is first used for analyte separation. The middle layer can then be slid relative the top and/or bottom layer, thereby aligning the separation channel with a blotting membrane. Analytes can then be transferred to the membrane using electrodes in the top and bottom layers. |