See Us at SLAS2026
Jan 7–11, 2026 | Boston, MA Boston
Convention & Exhibition Center – Halls – A–B2
Booth 535
DRD NEPTUNE 96 is the world’s first differential pipettor. It provides unprecedented fine resolution to accurately aspirate down to nanoliters, along with built-in high flow to cleanly blow samples off contact-free, even with disposable tips.
DRD DPDD-1000 Differential Pipettor / Diluter / Dispenser is not just a pipette with a motor. It’s a precision liquid-handling system designed specifically to do ultra-small volumes (down into the nanoliters) accurately and still move large volumes fast when needed.
Pipetting is the most common laboratory operation in the world, yet even today the industry struggles with a basic problem: handling very small liquid volumes cleanly and reliably.
“Hanging drops” appear throughout the literature and marketing materials of past and present market leaders and are often treated as unavoidable. In reality, they reveal a fundamental limitation of conventional pipetting technology.
Small samples are frequently difficult to aspirate accurately — and even when they are, they are often not delivered completely. The result is hanging droplets, inconsistent volumes, and increased contamination risk. The image below illustrates this problem clearly, showing a sample clinging to the pipette tip instead of releasing cleanly.
These failures occur millions of times every day in laboratories worldwide.
The usual workarounds are equally inefficient:
A technician carefully dragging an angled tip along a vessel wall, straining to see a tiny droplet
Or a complex and costly 3-axis robotic system attempting to compensate for poor liquid control
Both approaches introduce error. Inaccuracy drives duplicates and triplicates, increases reagent use, and raises the risk of carryover and contamination.
Differential Displacement™ is a new core liquid-handling technology that solves this problem.
It enables accurate aspiration and complete, clean delivery of even the smallest samples — eliminating hanging drops and going far beyond the limits of traditional pipetting.
The result is simpler workflows, higher accuracy and consistency, lower cost, and liquid-handling capabilities that were previously impossible.
This is a spectacular improvement in pipetting — and in syringe-based liquid handling as well.
It’s a bit like replacing square wheels with round ones: once you see it, you wonder how the old approach ever survived. Purely mechanical breakthroughs of this kind are rare. Take a moment to think about that.
Differential Pipetting™ solves long-standing liquid-handling problems with a simple but powerful mechanical insight: two pistons of slightly different diameters operating in the same chamber. This core mechanism is protected by U.S. Patents 11,491,477; 11,813,606; and 11,951,470.
The result is remarkably straightforward operation — hold straight, aim, and push. Fast and intuitive. Aspiration is accurate due to rugged differential sealing, and delivery is complete and precise, without outside wick-off and without contact. Clean, controlled, and repeatable.
This technology sits at the foundation of the multi-billion-dollar liquid-handling and diagnostics market that supports today’s most advanced genomic science and clinical diagnostics. Its impact on assays and protocols is profound.
Our mission is to use this breakthrough to make key assays and workflows simpler, more compact, and more reliable — from human-operated instruments in small research labs to large-scale, multi-channel automated robotic systems in pharmaceutical and clinical environments.
This is a new world of liquid handling.
