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Mass transfer, mixing, Chinese hamster ovary cell growth and antibody production characterization using Rushton turbine and marine impellars

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Text
TitleInfo (ID = T-1)
Title
Mass transfer, mixing, Chinese hamster ovary cell growth and antibody production characterization using Rushton turbine and marine impellars
SubTitle
PartName
PartNumber
NonSort
Identifier (displayLabel = ); (invalid = )
ETD_2153
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051902
Language (objectPart = )
LanguageTerm (authority = ISO639-2); (type = code)
eng
Genre (authority = marcgt)
theses
Subject (ID = SBJ-1); (authority = RUETD)
Topic
Chemical and Biochemical Engineering
Subject (ID = SBJ-2); (authority = ETD-LCSH)
Topic
Monoclonal antibodies
Subject (ID = SBJ-3); (authority = ETD-LCSH)
Topic
Animal cell biotechnology
Subject (ID = SBJ-4); (authority = ETD-LCSH)
Topic
Bioreactors
Abstract
Large scale production of monoclonal antibodies has been carried out over the years using bioreactors with different length to diameter ratios, and diverse impeller and sparger designs. The differences in these physical attributes often result in dissimilar mass transfer, shear dynamics and mixing inside the bioreactor, that lead to disparities in cell growth and antibody production. A rational analysis of impeller design parameters on cell growth, protein expression levels and subsequent antibody production is needed to understand such differences and has not been investigated in depth before. The purpose of this study was to examine the impact of Rushton turbine and marine impeller designs on Chinese hamster ovary (CHO) cell growth and metabolism, and antibody production and quality. Experiments to evaluate the mass transfer and mixing characteristics were conducted to determine if the nutrient requirements of the culture would be met. The analysis of mixing times indicated significant differences between marine and Rushton turbine impellers at the same power input per unit volume of liquid (P/V). However, no significant differences were observed between the two impellers at constant P/V with respect to oxygen and carbon dioxide mass transfer properties. Experiments were conducted with CHO cells to determine the impact of different flow patterns arising from the use of different impellers on cell growth, metabolism and antibody production. The analysis of cell culture data did not indicate any significant differences in any of the measured or calculated variables between marine and Rushton turbine impellers. A deterministic model was constructed to describe culture behavior under the different flow patterns and the parameters were solved for both marine and Rushton turbine impellers. This work was intended to bridge the gap in understanding the relationship between impellers with different flow patterns and their effect on CHO cells and productivity. Literature in this area has been inadequate and therefore this work is a significant advancement in this area. More importantly, this study was able to demonstrate that the quality of the antibody was not altered with a change in the impeller geometry, which is of critical importance to the biopharmaceutical industry today.
PhysicalDescription
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electronic resource
Extent
xii, 123 p. : ill.
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application/pdf
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Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references (p. 113-118)
Note (type = statement of responsibility)
by Sandeepa Sandadi
Name (ID = NAME-1); (type = personal)
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Sandadi
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Sandeepa
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author
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Sandeepa Sandadi
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Pedersen
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Henrik
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chair
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Advisory Committee
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Henrik Pedersen
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Chiew
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Yee
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internal member
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Advisory Committee
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Yee C Chiew
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Glasser
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Benjamin
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internal member
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Advisory Committee
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Benjamin J Glasser
Name (ID = NAME-5); (type = personal)
NamePart (type = family)
Rendeiro
NamePart (type = given)
Dennis
Role
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outside member
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Advisory Committee
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Dennis Rendeiro
Name (ID = NAME-1); (type = corporate)
NamePart
Rutgers University
Role
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degree grantor
Name (ID = NAME-2); (type = corporate)
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Graduate School - New Brunswick
Role
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school
OriginInfo
DateCreated (point = ); (qualifier = exact)
2009
DateOther (qualifier = exact); (type = degree)
2009-10
Place
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xx
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
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ETD
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Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
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NjNbRU
Identifier (type = doi)
doi:10.7282/T33R0T2F
Genre (authority = ExL-Esploro)
ETD doctoral
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RightsDeclaration (AUTHORITY = GS); (ID = rulibRdec0006)
The author owns the copyright to this work
Copyright
Status
Copyright protected
Notice
Note
Availability
Status
Open
Reason
Permission or license
Note
RightsHolder (ID = PRH-1); (type = personal)
Name
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Sandadi
GivenName
Sandeepa
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Copyright holder
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DateTime
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Name
Sandeepa Sandadi
Affiliation
Rutgers University. Graduate School - New Brunswick
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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ETD
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