Filtration and extraction of specific molecules


Ligar develops polymers to filter specific molecules out of solutions at large scale and in a wide range of environments.


The captured molecules are removed from the polymer in a form that makes reuse, or disposal, easy.


Organic molecules, such as specific phenols, agrochemicals, toxins, taints, sugars and hormones can be extracted.


Specific metals – down to individual species of metals – can be individually extracted from fluids ranging from food oils to dissolved ore.

Ligar was a finalist in three categories of 2016’s NZ Innovation Awards – clean tech, food & beverage and start up.  The awards were handed out at an event at Sky City on 20th October 2016 and Ligar won the Start-Up Innovator of the Year award. Yay!  There is an article on the award winners in Idealog here and a NZ Innovation Awards magazine available to download here.

The evaluators said that ‘introducing a cost-effective way to not only clean up waste streams but have some waste product reused is a great achievement’.

Our videos are a great introduction to MIPs.

This 5 minute video introduces MIPs, explains in non-scientific terms how they work and shows how they can be used in the large scale for filtration and extraction.  We can have more technical discussions on what can and can’t be bound using Ligar’s MIPs in person or via teleconference.

The two 3 minute videos below, show how MIPs can be used for environmental clean up and for the extraction of molecules from fluid foods.  These just give a hint at the wide range of possibilities.

Our brochure (English download on the left, Chinese download on the right) provides a broad overview of the technology and its applications and is the best place to start when thinking about commercial opportunities.

There are many opportunities waiting to be explored – anywhere where molecules are in the wrong place.  Contaminants and pollutants in water and waste streams (many of which have value), taints and other contaminants in fluid foods, high value compounds in complex matrices (such as plant extracts), specific metals in dissolved rock (mining, purification), air pollutants, and many more.  Many thousands of molecules can be filtered out and, where they have value, be extracted for re-use.

That’s what we’re about. Taking molecules out.


Molecular Filtration

Our polymers are designed to remove very specific molecules from a flow, even at ppb levels.

Wide Target Range

The ranges of potential targets is almost limitless, from metals to hormones, phenols to agrochemicals.

Range of Environments

Our polymers can be designed to work in a wide range of fluids, temperatures, pH ranges, flow rates and pressures.


Ligar announcements, press releases, news articles.

World Leading Research

There are many technical reasons why selectively removing specific molecules an industrial scale is not widespread. Ligar has cracked these, opening up a very exciting range of opportunities in purification, pollution remediation and valuable material extraction.


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