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Anane E, Knudsen IM, Wilson GC. Scale-down cultivation in mammalian cell bioreactors—The effect of bioreactor mixing time on the response of CHO cells to dissolved oxygen gradients. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Anane E, García ÁC, Haby B, Hans S, Krausch N, Krewinkel M, Hauptmann P, Neubauer P, Cruz Bournazou MN. A model‐based framework for parallel scale‐down fed‐batch cultivations in mini‐bioreactors for accelerated phenotyping. Biotechnol Bioeng 2019; 116:2906-2918. [DOI: 10.1002/bit.27116] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/25/2019] [Accepted: 07/09/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Emmanuel Anane
- Department of Bioprocess EngineeringInstitute of BiotechnologyTechnische Universität Berlin Berlin Germany
| | - Ángel Córcoles García
- Biologics Development: Microbial Dev'tSanofi‐Aventis Deutschland GmbH Frankfurt Germany
| | - Benjamin Haby
- Department of Bioprocess EngineeringInstitute of BiotechnologyTechnische Universität Berlin Berlin Germany
| | - Sebastian Hans
- Department of Bioprocess EngineeringInstitute of BiotechnologyTechnische Universität Berlin Berlin Germany
| | - Niels Krausch
- Department of Bioprocess EngineeringInstitute of BiotechnologyTechnische Universität Berlin Berlin Germany
| | - Manuel Krewinkel
- Biologics Development: Microbial Dev'tSanofi‐Aventis Deutschland GmbH Frankfurt Germany
| | - Peter Hauptmann
- Biologics Development: Microbial Dev'tSanofi‐Aventis Deutschland GmbH Frankfurt Germany
| | - Peter Neubauer
- Department of Bioprocess EngineeringInstitute of BiotechnologyTechnische Universität Berlin Berlin Germany
| | - Mariano Nicolas Cruz Bournazou
- Department of Bioprocess EngineeringInstitute of BiotechnologyTechnische Universität Berlin Berlin Germany
- Department of Chemistry and Applied BiosciencesETH Zurich‐Institute of Chemical and Bioengineering Zurich Switzerland
- DataHow AG Zurich Switzerland
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Haby B, Hans S, Anane E, Sawatzki A, Krausch N, Neubauer P, Cruz Bournazou MN. Integrated Robotic Mini Bioreactor Platform for Automated, Parallel Microbial Cultivation With Online Data Handling and Process Control. SLAS Technol 2019; 24:569-582. [PMID: 31288593 DOI: 10.1177/2472630319860775] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
During process development, the experimental search space is defined by the number of experiments that can be performed in specific time frames but also by its sophistication (e.g., inputs, sensors, sampling frequency, analytics). High-throughput liquid-handling stations can perform a large number of automated experiments in parallel. Nevertheless, the experimental data sets that are obtained are not always relevant for development of industrial bioprocesses, leading to a high rate of failure during scale-up. We present an automated mini bioreactor platform that enables parallel cultivations in the milliliter scale with online monitoring and control, well-controlled conditions, and advanced feeding strategies similar to industrial processes. The combination of two liquid handlers allows both automated mini bioreactor operation and at-line analysis in parallel. A central database enables end-to-end data exchange and fully integrated device and process control. A model-based operation algorithm allows for the accurate performance of complex cultivations for scale-down studies and strain characterization via optimal experimental redesign, significantly increasing the reliability and transferability of data throughout process development. The platform meets the tradeoff between experimental throughput and process control and monitoring comparable to laboratory-scale bioreactors.
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Affiliation(s)
- Benjamin Haby
- Institute of Biotechnology, Technische Universität, Berlin, Germany
| | - Sebastian Hans
- Institute of Biotechnology, Technische Universität, Berlin, Germany
| | - Emmanuel Anane
- Institute of Biotechnology, Technische Universität, Berlin, Germany
| | - Annina Sawatzki
- Institute of Biotechnology, Technische Universität, Berlin, Germany
| | - Niels Krausch
- Institute of Biotechnology, Technische Universität, Berlin, Germany
| | - Peter Neubauer
- Institute of Biotechnology, Technische Universität, Berlin, Germany
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Hans S, Anane E, Glauche F, Neubauer P, Cruz-Bournazou M, Barz T. Optimal Conditional Screening in High-Throughput Bioprocess Development. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- S. Hans
- Technische Universität Berlin; Bioprocess Engineering; Ackerstraße 76 13355 Berlin Germany
| | - E. Anane
- Technische Universität Berlin; Bioprocess Engineering; Ackerstraße 76 13355 Berlin Germany
| | - F. Glauche
- Technische Universität Berlin; Bioprocess Engineering; Ackerstraße 76 13355 Berlin Germany
| | - P. Neubauer
- Technische Universität Berlin; Bioprocess Engineering; Ackerstraße 76 13355 Berlin Germany
| | - M. N. Cruz-Bournazou
- Technische Universität Berlin; Bioprocess Engineering; Ackerstraße 76 13355 Berlin Germany
| | - T. Barz
- Austrian Institute of Technology GmbH; Giefinggasse 4 1210 Vienna Austria
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Kögler M, Paul A, Anane E, Birkholz M, Bunker A, Viitala T, Maiwald M, Junne S, Neubauer P. Comparison of time-gated surface-enhanced raman spectroscopy (TG-SERS) and classical SERS based monitoring of Escherichia coli cultivation samples. Biotechnol Prog 2018; 34:1533-1542. [PMID: 29882305 DOI: 10.1002/btpr.2665] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 05/16/2018] [Indexed: 01/08/2023]
Abstract
The application of Raman spectroscopy as a monitoring technique for bioprocesses is severely limited by a large background signal originating from fluorescing compounds in the culture media. Here, we compare time-gated Raman (TG-Raman)-, continuous wave NIR-process Raman (NIR-Raman), and continuous wave micro-Raman (micro-Raman) approaches in combination with surface enhanced Raman spectroscopy (SERS) for their potential to overcome this limit. For that purpose, we monitored metabolite concentrations of Escherichia coli bioreactor cultivations in cell-free supernatant samples. We investigated concentration transients of glucose, acetate, AMP, and cAMP at alternating substrate availability, from deficiency to excess. Raman and SERS signals were compared to off-line metabolite analysis of carbohydrates, carboxylic acids, and nucleotides. Results demonstrate that SERS, in almost all cases, led to a higher number of identifiable signals and better resolved spectra. Spectra derived from the TG-Raman were comparable to those of micro-Raman resulting in well-discernable Raman peaks, which allowed for the identification of a higher number of compounds. In contrast, NIR-Raman provided a superior performance for the quantitative evaluation of analytes, both with and without SERS nanoparticles when using multivariate data analysis. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1533-1542, 2018.
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Affiliation(s)
- Martin Kögler
- Chair of Bioprocess Engineering, Department of Biotechnology, Technische Universität Berlin, Ackerstr. 76 ACK24, Berlin, D-13355, Germany.,Drug Research Program, Faculty of Pharmacy, Division of Pharmaceutical Biosciences, University of Helsinki, Helsinki, Finland, 00014
| | - Andrea Paul
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, Berlin, D-12489, Germany
| | - Emmanuel Anane
- Chair of Bioprocess Engineering, Department of Biotechnology, Technische Universität Berlin, Ackerstr. 76 ACK24, Berlin, D-13355, Germany
| | - Mario Birkholz
- IHP, Im Technologiepark 25, Frankfurt, Oder, 15236, Germany
| | - Alex Bunker
- Drug Research Program, Faculty of Pharmacy, Division of Pharmaceutical Biosciences, University of Helsinki, Helsinki, Finland, 00014
| | - Tapani Viitala
- Drug Research Program, Faculty of Pharmacy, Division of Pharmaceutical Biosciences, University of Helsinki, Helsinki, Finland, 00014
| | - Michael Maiwald
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, Berlin, D-12489, Germany
| | - Stefan Junne
- Chair of Bioprocess Engineering, Department of Biotechnology, Technische Universität Berlin, Ackerstr. 76 ACK24, Berlin, D-13355, Germany
| | - Peter Neubauer
- Chair of Bioprocess Engineering, Department of Biotechnology, Technische Universität Berlin, Ackerstr. 76 ACK24, Berlin, D-13355, Germany
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