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Engineering Commons

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Engineering Conferences International

2017

ATF

Articles 1 - 4 of 4

Full-Text Articles in Engineering

Fouling Mitigation In Membrane Based Perfusion Systems By Oscillating Tangential Flow, Maria Weinberger, Ulrich Kulozik Sep 2017

Fouling Mitigation In Membrane Based Perfusion Systems By Oscillating Tangential Flow, Maria Weinberger, Ulrich Kulozik

Integrated Continuous Biomanufacturing III

Good scalability and robust handling have promoted the application of membrane based cell retention devices. A physical barrier, i.e. a filter, retains cells and cell debris. One major drawback of these devices is their ten-dency to foul and clog. One form of fouling is deposit layer formation on the filter surface, consisting of cells, cell debris and other fermentation broth constituents. This leads to the build-up of a secondary membrane, which can alter the permeation profile. Furthermore, deposit layers lead to an increased filtration resistance and thus negatively affect permeate flux, filtration efficiency and process robustness. In tangential flow filtration, …


Bioprocess Intensification And Optimisation Using Macroscopic Predictive Models Of Cell Culture Processes, Bassem Ben Yahia, Boris Fessler, Gwendal Gränicher, An-Vy Tran, Mareike Harmsen, Elmar Heinzle Sep 2017

Bioprocess Intensification And Optimisation Using Macroscopic Predictive Models Of Cell Culture Processes, Bassem Ben Yahia, Boris Fessler, Gwendal Gränicher, An-Vy Tran, Mareike Harmsen, Elmar Heinzle

Integrated Continuous Biomanufacturing III

Chinese Ovary Hamster (CHO) are an indispensable tool for biotechnological production of biologics which is a multi-million business. Recently, the pharmaceutical industry is increasingly focusing in the use of perfusion mode. Nevertheless, the optimal perfusion rate during biopharmaceutical perfusion production is dependent on cell metabolism which can be characterized by mathematical models. This study provides insights into the predictive capacities of systematic and simple cell modeling approaches of metabolism, growth and production of monoclonal antibodies (mAb) [1] to optimized medium composition and perfusion rate during CHO perfusion culture. We applied the metabolic steady state concept and used a segmented linear …


Fouling Mitigation In Membrane Based Perfusion Systems By Oscillating Tangential Flow, Maria Weinberger, Ulrich Kulozik Sep 2017

Fouling Mitigation In Membrane Based Perfusion Systems By Oscillating Tangential Flow, Maria Weinberger, Ulrich Kulozik

Integrated Continuous Biomanufacturing III

Good scalability and robust handling have promoted the application of membrane based cell retention devices. A physical barrier, i.e. a filter, retains cells and cell debris. One major drawback of these devices is their ten-dency to foul and clog. One form of fouling is deposit layer formation on the filter surface, consisting of cells, cell debris and other fermentation broth constituents. This leads to the build-up of a secondary membrane, which can alter the permeation profile. Furthermore, deposit layers lead to an increased filtration resistance and thus negatively affect permeate flux, filtration efficiency and process robustness. In tangential flow filtration, …


Bioprocess Intensification And Optimisation Using Macroscopic Predictive Models Of Cell Culture Processes, Bassem Ben Yahia, Mareike Harmsen, An-Vy Tran, Gwendal Gränicher, Boris Fessler, Elmar Heinzle Sep 2017

Bioprocess Intensification And Optimisation Using Macroscopic Predictive Models Of Cell Culture Processes, Bassem Ben Yahia, Mareike Harmsen, An-Vy Tran, Gwendal Gränicher, Boris Fessler, Elmar Heinzle

Integrated Continuous Biomanufacturing III

CHO cells, modeling, perfusion, ATF, segmented linear model