According to the invention, there is provided seed and plants of the corn variety designated CV622625. Methods for incubating magnetically responsive beads that are labeled with primary antibody, a sample, and secondary reporter antibodies on a magnet, on and off a magnet, and completely off a magnet are provided. Each aggregation surface of the plurality of aggregation surfaces is oriented such that a difference between a flow direction of the gases prior to impinging on the aggregation surface and a flow direction of the gases after impinging on the aggregation surface is at least approximately 90\xb0, wherein particulates in gases impinging on the aggregation surfaces aggregate on the surfaces. Then the computer system determines, using the layout and the determined identity, a determined location of the sensing device relative to the interface surface, and identifies, using the determined location, the at least one interactive element.