TECHNOLOGY LICENSING OPPORTUNITY: UltraGraph Membrane Extraction System

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Summary from the notice

The UltraGraph Membrane Extraction System from Los Alamos National Laboratory is a compact, modular device that separates and recovers targeted materials from liquid mixtures using an ultra-thin graphene membrane. The system achieves mass transfer performance comparable to conventional separation equipment with active areas 250 times larger. Its building-block design, chemically stable materials and compatibility with standard laboratory fittings allow it to serve a wide range of applications in chemical separations, recovery purifications and biological sample preparation. Organizations can integrate the UltraGraph system into existing laboratory infrastructure with minimal modification, reducing the cost and complexity of adoption. How it Works The UltraGraph system flows two different liquids through separate microchannels etched into quartz substrates, with a three-layer membrane positioned between them. The membrane consists of a monolayer sheet of graphene held between two porous formvar polymer films, each approximately 125 nanometers thick. The formvar layers are permeable, allowing liquid to reach the graphene surface, while the graphene itself blocks the bulk fluids but permits selected ions or particles to transfer across. Liquids can run co-currently or counter-currently depending on the separation task, enabling controlled mass transfer, ion exchange or heat exchange without the two fluids ever mixing. The assembly is secured between steel plates that compress th…

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