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Oxygen transfer properties of a bioreactor for use within a nuclear magnetic resonance spectrometer.
MedLine Citation:
PMID:  18587814     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Nuclear magnetic resonance (NMR) spectroscopic analysis of whole cells is an important emerging technique for noninvasive and nondestructive monitoring of cell physiology. However, this technique requires extremely high cell densities. Attempts to maintain densities above the carrying capacity of a maintenance system result in the demise of the entire culture. To define conditions for maintaining mammalian cells at high densities for NMR studies, we have designed a bioreactor to operate under defined, oxygen-limited conditions within an NMR spectrometer. The bioreactor utilizes hollow fibers to deliver nutrients and remove wastes from an agitated cell suspension. The mass transfer properties of the fibers with respect to oxygen were determined. Ehrlich Ascites Tumor (EAT) cells were supplied with glutamine as the respiratory carbon source. The maximum viable cell density supported by a given oxygen concentration in the fluid flowing through the fiber lumen was predicted and then confirmed experimentally on the bench and in the spectrometer.
Authors:
D D Drury; B E Dale; R J Gillies
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biotechnology and bioengineering     Volume:  32     ISSN:  0006-3592     ISO Abbreviation:  Biotechnol. Bioeng.     Publication Date:  1988 Oct 
Date Detail:
Created Date:  2008-06-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502021     Medline TA:  Biotechnol Bioeng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  966-74     Citation Subset:  -    
Affiliation:
Department of Agricultural and Chemical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA.
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