Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells

Collagen-based hydrogels are widely used for three-dimensional (3D) culture of mammalian cells because of their high cell-activating characteristis. However, techniques for preparing of cell-embedding collagen hydrogels with micrometer-size precision in perfusable, microfluidic devices have not been...

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Main Authors: Kato Misaki, Fukushi Mayu, Yamada Masumi, Utoh Rie, Seki Minoru
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2021/02/matecconf_apcche21_07006.pdf
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author Kato Misaki
Fukushi Mayu
Yamada Masumi
Utoh Rie
Seki Minoru
author_facet Kato Misaki
Fukushi Mayu
Yamada Masumi
Utoh Rie
Seki Minoru
author_sort Kato Misaki
collection DOAJ
description Collagen-based hydrogels are widely used for three-dimensional (3D) culture of mammalian cells because of their high cell-activating characteristis. However, techniques for preparing of cell-embedding collagen hydrogels with micrometer-size precision in perfusable, microfluidic devices have not been fully developed. In this study, we propose a facile strategy enabling microfabrication of collagen hydrogels in microfluidic devices. We used phosphate particle-embedding polydimethylsiloxane (PP-PDMS) as a gelation agent, which neutralizes the acidic collagen soltuion. The collagen solution near the surface of the PP-PDMS is selectively gelled. We fabricated micropatterns and tubular structures made of collagen hydrogel, both of which were used for perfusion culture of mammalian cells encapsulated in the hydrogel matrix. The presented approach would be applicable to various types of cell culture experiments.
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spelling doaj.art-7b18e9ab7ed84fb4a5555370b6028ae62022-12-21T22:28:25ZengEDP SciencesMATEC Web of Conferences2261-236X2021-01-013330700610.1051/matecconf/202133307006matecconf_apcche21_07006Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian CellsKato MisakiFukushi MayuYamada MasumiUtoh RieSeki MinoruCollagen-based hydrogels are widely used for three-dimensional (3D) culture of mammalian cells because of their high cell-activating characteristis. However, techniques for preparing of cell-embedding collagen hydrogels with micrometer-size precision in perfusable, microfluidic devices have not been fully developed. In this study, we propose a facile strategy enabling microfabrication of collagen hydrogels in microfluidic devices. We used phosphate particle-embedding polydimethylsiloxane (PP-PDMS) as a gelation agent, which neutralizes the acidic collagen soltuion. The collagen solution near the surface of the PP-PDMS is selectively gelled. We fabricated micropatterns and tubular structures made of collagen hydrogel, both of which were used for perfusion culture of mammalian cells encapsulated in the hydrogel matrix. The presented approach would be applicable to various types of cell culture experiments.https://www.matec-conferences.org/articles/matecconf/pdf/2021/02/matecconf_apcche21_07006.pdf
spellingShingle Kato Misaki
Fukushi Mayu
Yamada Masumi
Utoh Rie
Seki Minoru
Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells
MATEC Web of Conferences
title Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells
title_full Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells
title_fullStr Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells
title_full_unstemmed Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells
title_short Microengineering of Collagen Hydrogels Integrated into Microfluidic Devices for Perfusion Culture of Mammalian Cells
title_sort microengineering of collagen hydrogels integrated into microfluidic devices for perfusion culture of mammalian cells
url https://www.matec-conferences.org/articles/matecconf/pdf/2021/02/matecconf_apcche21_07006.pdf
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AT yamadamasumi microengineeringofcollagenhydrogelsintegratedintomicrofluidicdevicesforperfusioncultureofmammaliancells
AT utohrie microengineeringofcollagenhydrogelsintegratedintomicrofluidicdevicesforperfusioncultureofmammaliancells
AT sekiminoru microengineeringofcollagenhydrogelsintegratedintomicrofluidicdevicesforperfusioncultureofmammaliancells