Fluidics engineering / Design · Build · Manufacture
We engineer how liquid moves.
Surnetics designs fluid-handling devices, builds working prototypes and engineers them for volume production. Our patented surface-gradient coatings move liquid through a channel with no pump, valve or power source.
- Granted US patents
- 05
- Granted US patents
- Testing with diagnostic companies since
- 2014
- Testing with diagnostic companies since
- Flow-rate variation across manufactured lots
- <10%
- Flow-rate variation across manufactured lots
Services
From the first sketch to the production line.
Bring us in at any stage. Some clients need a concept proven. Others have a prototype that works on the bench and won’t survive a molding line.
The method
A surface that pulls liquid along it.
Liquid meets a surface at a contact angle. We coat channel walls so that angle falls steadily from one end to the other. The front of the liquid wets better than the back, the capillary forces stop balancing, and the liquid moves.
The coating sets the speed and the stopping point. No pump, no valve, no controller. Several channels can run at different rates on the same layer.
Industries
Where liquid has to behave.
- IVDDiagnostics & point-of-careCartridges, lateral flow strips and handheld readers where flow rate decides whether the test is right.
- DDSDrug deliveryMetered release from patches, microneedle arrays and depots, with the dose rate set by design rather than a motor.
- IMPImplantable devicesFluid control inside the body without a pump to fail, a battery to drain or a motor to wear out.
- THMElectronics coolingLiquid cooling loops for chips, power electronics and sealed enclosures, with less riding on the pump.
- NRGEnergy storage & generationWater, electrolyte and coolant management in fuel cells, batteries and electrolyzers, with no parasitic draw.
- A&DAerospace & defenseFluid systems that keep working under vibration, in vacuum and in microgravity, where a pump is a liability.
US 12,263,480
Diagnostic Device with Integrated Sampler and Holder
US 12,083,517
Microfluidic Products with Controlled Fluid Flow
US 11,583,858
Microfluidic Diagnostics with Controlled Fluid Flow
US 10,821,438
Microfluidic Diagnostics with Controlled Fluid Flow
US 9,968,930
Microfluidic Products with Controlled Fluid Flow
+ 3 applications pending
Start here
Tell us what the liquid needs to do.
The button opens an email to us. Describe the device, the liquid and where you’re stuck.