DA-Bead Plates and Washing Stations

Wall-less plate technology for miniaturizing bead-based immunoassays enabling small sample volumes (2-5 µl), reducing bead clumping, and saving reagents and antibodies


Wall-less 96-well plate

Miniaturization with the DA-Bead plates reduces sample volume and bead consumption by 5X and decreases assay costs by >60%. Laminar flow washing is efficient and limits bead aggregation.

Washing Stations

DropArray LT210 Washing Station MX

Accepts manually loaded
 DropArray™ DA-Bead or DA-HCS Plates

P/N LT-210MX-01-01

38 cm (15”) x 25 cm (10”) x
33 cm (13”), 8 kg (18 lb)

96 format LT magnet clamper
P/N LT-CP-MAG-96-01

384 format LT magnet clamper
P/N LT-CP-MAG-384-01

DropArray HT200 Washing Station MX

Accepts automatically or manually loaded
DropArray™ DA-Bead or DA-HCS Plates

P/N HT-200MX-01-03

50 cm (20”) x 40 cm (16”) x
40 cm (16”), 25 kg (55 lb)

96 format HT magnet clamper
P/N HT-CP-MAG-96-01

384 format HT magnet clamper
P/N HT-CP-MAG-384-01

Washing Stations accept DropArray™ DA-Bead and DA-HCS plates into a liquid-tight chamber formed with a clamping mechanism. After an aqueous washing buffer is automatically added, the station gently shakes the microplate to facilitate washing with minimal loss of cells. The station then tilts the microplate, using gravity to drain excess washing buffer from the planar surface, avoiding the harsh, high-velocity liquid exchange associated with traditional washers and microplates. Buffer is added at a very low velocity, preventing cell and bead loss. In addition, there is a magnet array embedded in the plate holder for bead-based immunoassays. This helps retain magnetic beads on the microplate upon washing. Despite the low velocity, plate processing time is comparable to traditional washers because the entire plate is treated at once. After the microplate is removed from the station the plate is ready for accepting the next set of reagents.