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Macroporous microcarriers for introducing cells into a microfluidic chip
Linköping University, Department of Physics, Chemistry and Biology, Biotechnology. Linköping University, The Institute of Technology.
Percell Biolytica AB, Åstorp, Sweden.
Linköping University, Department of Physics, Chemistry and Biology, Biotechnology. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, The Institute of Technology. (Transport and Separations Group)ORCID iD: 0000-0002-2773-5096
2014 (English)In: Lab on a Chip, ISSN 1473-0197, E-ISSN 1473-0189, Vol. 14, no 18, 3502-3504 p.Article in journal (Refereed) Published
Abstract [en]

Macroporous gelatin beads (CultiSpher™ microcarriers) provide a convenient method for rapidly and reliably introducing cells cultured ex situ into a microfluidic device, where the spheres create a 3D environment for continued cell proliferation. We demonstrate the usefulness of this technique with a proof-of-concept viability analysis of cardiac cells after treatment with doxorubicin. © 2014 the Partner Organisations.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2014. Vol. 14, no 18, 3502-3504 p.
National Category
Biological Sciences Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-109971DOI: 10.1039/c4lc00693cISI: 000340474300008PubMedID: 25068539Scopus ID: 2-s2.0-84905837163OAI: oai:DiVA.org:liu-109971DiVA: diva2:742019
Funder
Swedish Research Council, 2008-7537 2011-6404
Note

Acknowledgements

The primary embryonic cardiomyocytes were provided byJordi Altimiras, Department of Physics, Chemistry andBiology, Linköping University. The authors thank the SwedishResearch Council (Vetenskapsrådet) for fundingviagrants 2008-7537 and 2011-6404

Available from: 2014-08-29 Created: 2014-08-29 Last updated: 2017-12-05Bibliographically approved
In thesis
1. Microfluidic biosensor systems for cardiotoxicity assaying
Open this publication in new window or tab >>Microfluidic biosensor systems for cardiotoxicity assaying
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Toxicity screening is an important part of pharmaceutical development and early detection of toxic side effects provide the opportunity for early redesign or termination of unfeasible projects. Today toxicity testing is relying on experiments on animals. Ethical concerns, high costs and problems with interspecies variability in animal experiments have introduced incentives for cell-based toxicity assays. The recent development of stem cell technology have raised the hope for toxicity testing with higher predictivity that can reduce the amount of animals sacrificed, increase the patient safety and reduce the costs in pharmaceutical development.

Cell development and behavior is to a large extent dependent on the microenvironment. Microfluidic techniques can be used to build small-sized structures that provide the opportunity to introduce a high degree of control of the cell culture environment with features in cell sizes. In this thesis is demonstrated two different methods for infusing cells into microfluidic cell culture devices using either cells clustered in cardiac bodies during differentiation or cells pre-seeded in microporous carriers prior to infusion.

Microfluidic cell culture devices are well suited for optical  evaluation. Demonstrated in this thesis is fluorescent staining in combination with confocal microscopy as well as automated imaging with evaluation of beating frequency of cardiomyocyte cell clusters can be used to assess toxicity of cells cultured in microfluidic devices.

Biosensors use biological recognition elements to measure the presence of a chemical substance, for example low concentrations of biomarkers secreted by cells in a toxicity assay. Especially capacitive biosensors have shown very low limit of detection. In addition, protein G is demonstrated as an affinity ligand to capture IgG antibodies used as recognition element in a biosensor application or used for antibody screening.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2015. 49 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1678
National Category
Biological Sciences Physical Sciences
Identifiers
urn:nbn:se:liu:diva-118295 (URN)978-91-7519-046-4 (ISBN)
Public defence
2015-06-12, Visionen, B-huset, Campus Valla, Linköping, 14:00 (Swedish)
Opponent
Supervisors
Available from: 2015-05-26 Created: 2015-05-26 Last updated: 2015-10-02Bibliographically approved

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Bergström, GunnarMandenius, Carl-FredrikRobinson, Nathaniel D

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