Abstract: An apparatus for washing an array plate includes one or more dispensers and one or more aspirators that are distinct from the one or more dispensers. A respective dispenser of the one or more dispensers is configured to dispense a first liquid on the array plate, and a respective aspirator of the one or more aspirators is configured to aspirate liquid on the array plate. A method for washing particles is also disclosed.

Abstract: A device includes a first structure with a sheet layer with a plurality of discrete through-holes and a second structure coupled to the first structure. At least a portion of a first surface of the sheet layer of the first structure is exposed from the second structure. A top portion of the sheet layer, including the exposed portion of the first surface of the sheet layer, includes fluorocarbon. The second structure includes a material of a higher surface tension than the top of the sheet layer. A second surface of the sheet layer, opposite to the first surface of the sheet layer, is embedded in the second structure. The second structure extends at least partially into the plurality of discrete through-holes of the first structure.

Abstract: A device includes a first structure with a sheet layer with a plurality of discrete through-holes and a second structure coupled to the first structure. At least a portion of a first surface of the sheet layer of the first structure is exposed from the second structure. A top portion of the sheet layer, including the exposed portion of the first surface of the sheet layer, includes fluorocarbon. The second structure includes a material of a higher surface tension than the top of the sheet layer. A second surface of the sheet layer, opposite to the first surface of the sheet layer, is embedded in the second structure. The second structure extends at least partially into the plurality of discrete through-holes of the first structure.

Abstract: Methods and devices for adding liquids to and washing a microfluidic element array are disclosed. The method and devices feature a microfluidic plate holder with a sloped wall for improved draining of liquid, a machine readable/writable identifier, plate leveling systems, liquid filling systems, a hydrophilic-liquid coating, and an automated washing station.