Abstract: A microfluidic breadboard comprises a plurality of pairs of openings formed on an upper surface of a substrate and arranged at regular intervals, wherein each pair of openings are connected to each other through a microchannel formed in the bulk of the substrate so that the microfluidic breadboard has an array of U-shaped microchannels.

Abstract: An anti-scavenging device for deterring scavenging of goods from collection bins and receptacles, includes a frame mounted in an opening of a collection bin and a blocking member moveable between one position limiting access to the interior of the bin when the bin is positioned substantially upright, and another position blocking the opening when the bin is substantially inverted. In the preferred embodiment, the blocking member comprises two angularly-offset angular portions which freely drop into the two positions as facilitated by sliding supports engaging the frame. The blocking member are provided with supports to engage the frame, the supports being specially configured to prevent the blocking member from pivoting or tilting about its central axis as it moves between the two positions. Stabilizing bars may also be provided to maintain overall configuration of the frame.