MESA+ University of Twente
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MESA+ Spin offs

In 1994, Aquamarijn was founded to develop high flux, precision microfiltration membranes, "microsieve membranes". Initially, the idea was to use silicon micromaching (in those days new technology) to improve the at that time state-of-the-art membranes. But soon they realized that the membranes opened a whole new era of filtration applications that had not been possible before: separation of cells or particles on size; low pressure filtration thereby minimizing fouling rate; a low internal membrane volume thus no protein loss during processing; an extremely smooth membrane surface that declines the anchoring of cells or fouling to it.


Also new applications came across: the membranes enabled users to generate monodisperse droplets, either to study emulsification processes or to generate aerosols.

Since then Aquamarijn has developed more knowledge and intellectual property in many other fields, originally related to the fabrication method for the microsieve membrane. Current knowledge covers (silicon/glass) MEMS micromachining, polymeric micro moulding and fiber spinning techniques, but is not limited to the specific application area. Especially, the recent developments in polymer technology have opened the road for several advanced micro structured products, including membranes, micro fluidics, and optics etc.

The researchers from Aquamarijn are experts in their own specific but diverse fields of chemistry, electrical engineering, MEMS and physics, but they don’t refuse to look ‘over the fence’ and get that specific knowledge or technology for you that will make your design or product a success.

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