The Large Well Base Chip can be used in combination with the Resealable Chip Interface (Part No. 3000305) and a Top Chip (Part Nos. 3200069-72). The chip is made from glass and requires a Top Chip to create a fluidic seal. A central square area (9mm x 9mm) is etched to a depth of 100µm providing a recessed area in the fluid flow path. Materials or samples can be deposited in the recess prior to assembly in the holder.