Cell Bioprocess Engineering: Basic Fundamentals and Applications

A special issue of Bioengineering (ISSN 2306-5354). This special issue belongs to the section "Cellular and Molecular Bioengineering".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1098

Special Issue Editor


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Guest Editor
William G. Lowrie Department of Chemical and Biomedical Engineering, 151 W. Woodruff Avenue, The Ohio State University, Columbus, OH 43210, USA
Interests: cell analysis/characterization/detection; cell separation; cell culture; bioengineering

Special Issue Information

Dear Colleagues,

Industrial Cell Culture to produce human biologics has progressed from a “dream” in the early 1980s to an estimated 19 billion dollar (USD) annual industry with a projected growth rate of 7 percent annually. Congruent with this financial growth is the productivity and scale and productivity of the cell culture processes.  As human biologics progress from specialty products to, potentially, near commodities, such as basic antibiotics, significant pressure will continue to build on further increase productivity and decrease operating costs.  This success in biologics has also contributed toward the prediction that cell therapy (i.e. cells are the product) and cultured meat are economically viable.  While the ongoing commercial success of biologics is the result of many scientific and technological advancements, large scale, economic cell culture has been vital, and is even more important for cell therapy and cultured meat.  In this collection of articles, we wish to highlight the key technological challenges, and progress addressing these issues not just in biologics production but also cell therapy and cultured meat. 

Since this is a special issues focused on Bioprocessing, obvious topics will be included, but not limited to: modes of operation of the bioprocess, cell densities and associated challenges, specialized media and associated costs, product/byproduct removal, and mixing including nutrient delivery.   

Prof. Dr. Jeffrey J. Chalmers
Guest Editor

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Keywords

  • cell culture
  • bioprocess engineering
  • cell separation
  • biologics
  • cellular therapies

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Published Papers (1 paper)

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Research

11 pages, 2851 KiB  
Article
Measurement of Oxygen Transfer Rate and Specific Oxygen Uptake Rate of h-iPSC Aggregates in Vertical Wheel Bioreactors to Predict Maximum Cell Density Before Oxygen Limitation
by James Kim, Omokhowa Agbojo, Sunghoon Jung and Matt Croughan
Bioengineering 2025, 12(4), 332; https://doi.org/10.3390/bioengineering12040332 - 22 Mar 2025
Viewed by 574
Abstract
The prediction of the cell yield in large-scale bioreactor culture is an important factor for various cell therapy bioprocess operations to ensure consistency in cell quality and efficient use of resources. However, the shear sensitivity of cells used in cell therapy manufacturing can [...] Read more.
The prediction of the cell yield in large-scale bioreactor culture is an important factor for various cell therapy bioprocess operations to ensure consistency in cell quality and efficient use of resources. However, the shear sensitivity of cells used in cell therapy manufacturing can make such predictions difficult, particularly in large-scale suspension cultures that have significant stresses without representative scale down models. The PBS Vertical-Wheel (VW) bioreactors have been demonstrated to provide a homogeneous hydrodynamic environment with low shear for cell culture at various scales (0.1–80 L) and is thereby employed for various shear-sensitive cells. In this study, the oxygen transfer rate for surface aeration for three large-scale VW bioreactors was measured along with the specific oxygen uptake rate (sOUR) of iPSCs cultured in the bioreactors. The oxygen mass transfer coefficient was measured in PBS-3/15/80 L bioreactors at different agitation rates, headspace gas flowrates, and working volumes using the static gassing-out method. The sOUR of iPSCs was measured using the dynamic method in the PBS-0.1 L Mini with a custom DO probe configuration. The results from both experiments were combined to calculate the theoretical maximum cell density before oxygen limitation across VW bioreactors at 2 L/3 L/10 L/15 L/50 L/80 L working volumes at a different agitation speed and aeration rate. Full article
(This article belongs to the Special Issue Cell Bioprocess Engineering: Basic Fundamentals and Applications)
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