Gentle protein purification at the touch of a button

i3 Membrane revolutionizes the separation of biological agents

14-Nov-2025
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chromatography is a key process in biotechnology, particularly in the analysis and production of modern active ingredients for antibody-based therapies and gene therapies. The active ingredients are bound to special surfaces (with ion exchange or affinity ligands), while unwanted substances are rinsed out of the production process. To release the valuable proteins again, the use of acids and complex additional steps has been necessary until now - with the risk of damaging some of the sensitive molecules.

This is where Digital Membrane Chromatography, developed by i3 Membrane, comes in and transforms the process: instead of acid, a low electrical voltage of up to 2 volts is used to gently release proteins such as monoclonal or bispecific antibodies and ADCs from the surfaces. The process enables gentle and rapid purification as well as direct further use of the proteins in the appropriate solution - at the touch of a button.

"With DMC, we are taking chromatography to a new level and simultaneously leading it into the digital age. Our first products are not only innovative - they are real game changers for anyone working with proteins," emphasizes Dr. Stephan Brinke-Seiferth, CEO of i3 Membrane GmbH. "Researchers and pharmaceutical companies save time, protect their molecules and open up completely new analytical possibilities."

With the market launch of the world's first adsorber for digital membrane chromatography (DMC), i3 Membrane GmbH is opening up completely new horizons in protein analysis and bioprocess development.

Note: This article has been translated using a computer system without human intervention. LUMITOS offers these automatic translations to present a wider range of current news. Since this article has been translated with automatic translation, it is possible that it contains errors in vocabulary, syntax or grammar. The original article in German can be found here.

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