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Related Experiment Video

Updated: Jun 11, 2026

Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip
10:55

Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip

Published on: October 21, 2013

A microfluidic platform for probing small artery structure and function.

Axel Günther1, Sanjesh Yasotharan, Andrei Vagaon

  • 1Department of Mechanical and Industrial Engineering, University of Toronto, Ontario, Canada. axel.guenther@utoronto.ca

Lab on a Chip
|July 7, 2010
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel microfluidic device for studying small blood vessel function. This scalable platform enables detailed analysis of resistance arteries, advancing cardiovascular disease research.

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Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases
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Related Experiment Videos

Last Updated: Jun 11, 2026

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Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip

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Development and Characterization of In Vitro Microvessel Network and Quantitative Measurements of Endothelial [Ca2+]i and Nitric Oxide Production
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Development and Characterization of In Vitro Microvessel Network and Quantitative Measurements of Endothelial [Ca2+]i and Nitric Oxide Production

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Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases
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Endothelialized Microfluidics for Studying Microvascular Interactions in Hematologic Diseases

Published on: June 22, 2012

Area of Science:

  • Cardiovascular Research
  • Microfluidics
  • Physiology

Background:

  • Pathologic changes in small blood vessels are central to cardiovascular diseases.
  • Conventional methods like pressure myography have limitations in fully understanding these mechanisms.
  • A need exists for advanced techniques to study resistance artery structure and function.

Purpose of the Study:

  • To develop and validate a microfluidic device for assessing the structure and function of resistance arteries.
  • To enable the study of small blood vessels under controlled physiological conditions.
  • To provide a scalable and automated platform for investigating vascular mechanisms.

Main Methods:

  • Development of a microfluidic device for on-chip fixation, long-term culture, and automated data acquisition.
  • Utilized intact mouse mesenteric artery segments (approx. 250 µm diameter, 1.5 mm length).
  • Performed homogeneous and heterogeneous drug (phenylephrine, acetylcholine) dose-response studies under physiological conditions (37°C, 45 mmHg).

Main Results:

  • The microfluidic platform successfully replicated conventional myography results for homogeneous drug application.
  • Heterogeneous drug application revealed a lack of circumferential communication in the arteries.
  • Demonstrated the platform's capability for automated, multi-sample analysis in a controlled microenvironment.

Conclusions:

  • The developed microfluidic device offers a powerful, scalable tool for studying resistance artery physiology and pathology.
  • This platform overcomes limitations of traditional methods, enabling new biological insights.
  • Potential applications include routine organ-based screening in drug development for cardiovascular diseases.