PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models

The PDMS-based microfluidic organ-on-chip platform represents an exciting paradigm that has enjoyed a rapid rise in popularity and adoption. A particularly promising element of this platform is its amenability to rapid manufacturing strategies, which can enable quick adaptations through iterative pr...

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Main Authors: Tiffany C. Cameron, Avineet Randhawa, Samantha M. Grist, Tanya Bennet, Jessica Hua, Luis G. Alde, Tara M. Caffrey, Cheryl L. Wellington, Karen C. Cheung
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/10/1573
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author Tiffany C. Cameron
Avineet Randhawa
Samantha M. Grist
Tanya Bennet
Jessica Hua
Luis G. Alde
Tara M. Caffrey
Cheryl L. Wellington
Karen C. Cheung
author_facet Tiffany C. Cameron
Avineet Randhawa
Samantha M. Grist
Tanya Bennet
Jessica Hua
Luis G. Alde
Tara M. Caffrey
Cheryl L. Wellington
Karen C. Cheung
author_sort Tiffany C. Cameron
collection DOAJ
description The PDMS-based microfluidic organ-on-chip platform represents an exciting paradigm that has enjoyed a rapid rise in popularity and adoption. A particularly promising element of this platform is its amenability to rapid manufacturing strategies, which can enable quick adaptations through iterative prototyping. These strategies, however, come with challenges; fluid flow, for example, a core principle of organs-on-chip and the physiology they aim to model, necessitates robust, leak-free channels for potentially long (multi-week) culture durations. In this report, we describe microfluidic chip fabrication methods and strategies that are aimed at overcoming these difficulties; we employ a subset of these strategies to a blood–brain-barrier-on-chip, with others applied to a small-airway-on-chip. Design approaches are detailed with considerations presented for readers. Results pertaining to fabrication parameters we aimed to improve (e.g., the thickness uniformity of molded PDMS), as well as illustrative results pertaining to the establishment of cell cultures using these methods will also be presented.
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spelling doaj.art-3a890dbf09b44c7bbd5956a26ea1a9f12023-11-24T01:20:50ZengMDPI AGMicromachines2072-666X2022-09-011310157310.3390/mi13101573PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro ModelsTiffany C. Cameron0Avineet Randhawa1Samantha M. Grist2Tanya Bennet3Jessica Hua4Luis G. Alde5Tara M. Caffrey6Cheryl L. Wellington7Karen C. Cheung8School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaSchool of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaSchool of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaSchool of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaSchool of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaCentre for Blood Research, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaSchool of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, CanadaSchool of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, CanadaThe PDMS-based microfluidic organ-on-chip platform represents an exciting paradigm that has enjoyed a rapid rise in popularity and adoption. A particularly promising element of this platform is its amenability to rapid manufacturing strategies, which can enable quick adaptations through iterative prototyping. These strategies, however, come with challenges; fluid flow, for example, a core principle of organs-on-chip and the physiology they aim to model, necessitates robust, leak-free channels for potentially long (multi-week) culture durations. In this report, we describe microfluidic chip fabrication methods and strategies that are aimed at overcoming these difficulties; we employ a subset of these strategies to a blood–brain-barrier-on-chip, with others applied to a small-airway-on-chip. Design approaches are detailed with considerations presented for readers. Results pertaining to fabrication parameters we aimed to improve (e.g., the thickness uniformity of molded PDMS), as well as illustrative results pertaining to the establishment of cell cultures using these methods will also be presented.https://www.mdpi.com/2072-666X/13/10/1573microfluidicorgan-on-chiprapid prototypingcell culture
spellingShingle Tiffany C. Cameron
Avineet Randhawa
Samantha M. Grist
Tanya Bennet
Jessica Hua
Luis G. Alde
Tara M. Caffrey
Cheryl L. Wellington
Karen C. Cheung
PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models
Micromachines
microfluidic
organ-on-chip
rapid prototyping
cell culture
title PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models
title_full PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models
title_fullStr PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models
title_full_unstemmed PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models
title_short PDMS Organ-On-Chip Design and Fabrication: Strategies for Improving Fluidic Integration and Chip Robustness of Rapidly Prototyped Microfluidic In Vitro Models
title_sort pdms organ on chip design and fabrication strategies for improving fluidic integration and chip robustness of rapidly prototyped microfluidic in vitro models
topic microfluidic
organ-on-chip
rapid prototyping
cell culture
url https://www.mdpi.com/2072-666X/13/10/1573
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