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Digital Twins and Their Role in Model-Assisted Design of Experiments
Publikationstyp
Book Part
Date Issued
2021
Sprache
English
Author(s)
Institut
TORE-URI
First published in
Number in series
177
Start Page
29
End Page
61
Citation
Digital Twins, Advances in biochemical engineering/biotechnology 177: 29-61 (2021)
Publisher DOI
Scopus ID
PubMed ID
32797268
Rising demands for biopharmaceuticals and the need to reduce manufacturing costs increase the pressure to develop productive and efficient bioprocesses. Among others, a major hurdle during process development and optimization studies is the huge experimental effort in conventional design of experiments (DoE) methods. As being an explorative approach, DoE requires extensive expert knowledge about the investigated factors and their boundary values and often leads to multiple rounds of time-consuming and costly experiments. The combination of DoE with a virtual representation of the bioprocess, called digital twin, in model-assisted DoE (mDoE) can be used as an alternative to decrease the number of experiments significantly. mDoE enables a knowledge-driven bioprocess development including the definition of a mathematical process model in the early development stages. In this chapter, digital twins and their role in mDoE are discussed. First, statistical DoE methods are introduced as the basis of mDoE. Second, the combination of a mathematical process model and DoE into mDoE is examined. This includes mathematical model structures and a selection scheme for the choice of DoE designs. Finally, the application of mDoE is discussed in a case study for the medium optimization in an antibody-producing Chinese hamster ovary cell culture process.
Subjects
Cell culture
Experimental design
Fed-batch strategy
Process design and optimization
Quality by design