Non‐invasive mass transfer measurements in complex biofilm‐coated structures


Journal article


D. Graf von der Schulenburg, B. Akpa, L. Gladden, M. Johns
Biotechnology and bioengineering, 2008

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APA   Click to copy
von der Schulenburg, D. G., Akpa, B., Gladden, L., & Johns, M. (2008). Non‐invasive mass transfer measurements in complex biofilm‐coated structures. Biotechnology and Bioengineering.


Chicago/Turabian   Click to copy
Schulenburg, D. Graf von der, B. Akpa, L. Gladden, and M. Johns. “Non‐Invasive Mass Transfer Measurements in Complex Biofilm‐Coated Structures.” Biotechnology and bioengineering (2008).


MLA   Click to copy
von der Schulenburg, D. Graf, et al. “Non‐Invasive Mass Transfer Measurements in Complex Biofilm‐Coated Structures.” Biotechnology and Bioengineering, 2008.


BibTeX   Click to copy

@article{d2008a,
  title = {Non‐invasive mass transfer measurements in complex biofilm‐coated structures},
  year = {2008},
  journal = {Biotechnology and bioengineering},
  author = {von der Schulenburg, D. Graf and Akpa, B. and Gladden, L. and Johns, M.}
}

Abstract

We demonstrate a novel application of 13C pulsed field gradient (PFG) NMR to monitor mass transfer, due to both flow and diffusion, in a 3D complex porous support structure modified by biofilm growth. This enables timescales an order of magnitude larger than previously possible to be accessed with respect to displacement probability distribution (propagator) measurements. The evolution in the propagator shape with observation time to the Gaussian asymptote (constant dispersion coefficient) is consequently well resolved. We also simulated the measured displacement propagators with good agreement between experiment and prediction. The methodology has significant potential for the selective characterization of the transport of nutrients, metabolic products, pollutants and biocides in such complex biofilm‐containing structures. Biotechnol. Bioeng. 2008;101: 602–608. © 2008 Wiley Periodicals, Inc.


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