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What are Redbud Posts?

SEM of Redbud Posts

Electron micrograph of a Redbud Post chip

Redbud Posts are high aspect ratio, flexible, microposts that move in response to magnetic fields. They move in a wide variety of patterns, depending on the specific time-varying magnetic field to which they are exposed.

Originally developed as biomimetic cilia, these microposts have fascinating material properties. Their physical characteristics (diameter, length, and density) can be precisely controlled. So too can their chemical, elastic, and magnetic properties. The result is a rich design space that enables a wide range of practical applications. (Redbud Labs has exclusive right to practice a variety of patented inventions based on this technology.)

For example, Redbud Posts can pump and mix fluids at the microscale. This insight is at the heart of MXR, the first microfluidic mixing module designed specifically for diagnostic devices. Redbud Posts have been used as a micro-elastometer, enabling next generation blood coagulation assays in a solid-state design. At Redbud Labs, we continue to explore novel applications of micropost technology, with several innovative products under development.

Redbud Posts in motion

Redbud Posts move in response to a magnetic field. The tilting posts block light from behind, creating a flickering effect.

A variety of additional factors make Redbud Posts perfect for next-generation life science applications:

  • They are formed out of cost effective and biocompatible materials and manufactured using highly scalable soft-lithography methods.
  • They can be combined with a wide range of optical analytic modalities.
  • The surface chemistry can be tuned
  • Reagents can be lyophilized the posts.
  • The motion generates low shear, minimizing damage to delicate samples
  • The magnetic actuation method is isothermal and Redbud Posts operate over a wide temperature range.

If you’d like to learn more about Redbud Posts, contact us.

 

Latest news:

PRESS RELEASE – MXR now available for microfluidic ChipShop products

microfluidic ChipShop GmbH today announced that its products are now available with MXR, the world’s fastest, most adaptable microfluidic mixing chip. By adding MXR to microfluidic ChipShop products, assays can benefit from mixing when, where, and how they need it. Thanks to its unique, pop-in design, MXR offers easy integration with any product in the ChipShop catalogue.

Designing cartridges: custom or off-the-shelf?

We recently had the pleasure of collaborating with the talented folks at Fusion Biotec to write a short piece looking at how diagnostics development is changing. Our primary observation: microfluidic technologies are maturing, and that means more pre-built and...

Why we invented MXR

We recently announced our first product, MXR. It's the first microfluidic mixer specifically designed for diagnostic consumables. As anyone who has developed a small-volume assay knows, microfluidic mixing is a universal problem in our industry. Mixing is so obviously...

 

We collaborate with your engineers to develop cost-effective solutions tailored to your cartridge design. Contact us to get started.

Redbud Labs
271 Phillips Hall CB3255
Chapel Hill NC 27599
(919) 537-9753

Copyright 2017 Redbud Labs