Achieve Mixing Faster

& More Efficiently

Photo: Hummingbird Nano X style passive mixer microfluidic chip on LabSmith's uProcess breadboard

Passive Mixers

Zero dead volume

Low swept volume

Enhanced mixing vs. straight channel microfluidic chips

The interaction of fluids in microfluidic systems is a challenging yet important application. These interactions can take the form of controlled reactions, distribution of particles (slurries), particle control in emulsions and control of concentration, among others.

Passive mixing

Slow

Common concerns about microfluidic passive mixer chips are that they are slow and do not mix effectively.  However, Hummingbird Nano’s passive mixer with helical channels requires nearly 1/1000th the channel length of a diffusive mixer to produce complete or partial mixing, as desired.

Zero Dead-Volume Mixing

Reagents can be the most costly components in a protocol. Very low volume mixing can be readily accomplished using LabSmith uProcess syringe pumps, valves, reservoirs, software and Hummingbird Nano “X” or “Y” style helical channel passive mixer chips. Both chips have smooth, circular channels that come together to form a double helix in the mixing region.  For details on how to set up a zero dead volume mixing process, click on the application note below

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Photo: Hummingbird Nano X style passive mixer microfluidic chip
on LabSmith's uProcess breadboard

Product Description

Hummingbird Nano's passive mixing chips feature 280 µm diameter circular channels and a 5-stage helical mixing chamber for smooth flow and fast mixing. The chips include 1/16" OD PTFE tubing as side connectors that seamlessly integrate into the channels as well as easily interface with LabSmith’s microfluidic routing components.

Different form factors, number of mixing stages, mixing zone lengths, channel diameters, etc. are available upon request.  Results are dependent upon Reynolds number, viscosity and other fluid properties and mixing specifications. Send us your fluids and mixing specifications and we can tailor the design to fit your need. 

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All standard Hummingbird Nano microfluidic chips can be purchased
through our distributor, Labsmith.

For prototype projects or custom microfluidic chips, please contact us directly using the form below.

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450 John C. Watts Drive
Nicholasville, KY 40356

© 2020 by Hummingbird Nano