Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Interface motion of capillary-driven flow in rectangular microchannel.

Naoki Ichikawa1, Kazuo Hosokawa, Ryutaro Maeda

  • 1National Institute of Advanced Industrial Science and Technology (AIST), 1-2-1 Namiki, Tsukuba, Ibaraki 305-8564, Japan. n.ichikawa@aist.go.jp

Journal of Colloid and Interface Science
|October 13, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Advances in silicon carbide pressure sensors for high-temperature extreme environment sensing.

Microsystems & nanoengineering·2026
Same author

Electrospun Surface-Modified Epidermal Strain Sensors Enable Silent Speech and Hand Gesture Recognition for Virtual Reality Interaction.

Nanomaterials (Basel, Switzerland)·2026
Same author

Copying a soft lithography master mold using an inexpensive, hobby-use UV-curable resin.

Analytical sciences : the international journal of the Japan Society for Analytical Chemistry·2026
Same author

Repurposing traditional China Xuan paper for versatile humidity sensing.

Microsystems & nanoengineering·2026
Same author

A case of rapidly progressive cervical primary spinal epidural lymphoma.

Surgical neurology international·2025
Same author

Development of surface-functionalized power-free microchip for breast cancer cell-derived extracellular vesicle detection.

Analytical sciences : the international journal of the Japan Society for Analytical Chemistry·2025
Same journal

Oxygen vacancy-mediated photothermal CO<sub>2</sub> methanation over Ni/Ce-Zr solid solution catalysts.

Journal of colloid and interface science·2026
Same journal

Harnessing interfacial synergy between bimetallic nanoparticles and oxygen-deficient oxide nanofibers toward efficient nitrate-to-ammonia electroconversion.

Journal of colloid and interface science·2026
Same journal

Designing CeTiO<sub>x</sub>-based composite encapsulation overlayer on platinum for enhanced methanol steam reforming.

Journal of colloid and interface science·2026
Same journal

In situ dynamic modulation of zero-valent and low-valent copper ratio for constructing stable copper catalysts for acetylene hydrochlorination.

Journal of colloid and interface science·2026
Same journal

Competitive-adsorption-resistant interfacial regulation by 2-mercaptopyridine enables selective copper microvia superfilling.

Journal of colloid and interface science·2026
Same journal

Impact of molecular composition and sequential aqueous-phase exchange on polyglycerol polyricinoleate interfacial behavior.

Journal of colloid and interface science·2026
See all related articles

Gas-liquid interface motion in microchannels is crucial for microfluidics. This study extends capillary rise theory to rectangular channels, finding a universal formula for interface position prediction.

Area of Science:

  • Fluid Dynamics
  • Microfluidics
  • Surface Science

Background:

  • Gas-liquid interface behavior is critical for microfluidic applications, particularly passive systems.
  • Understanding capillary-driven flow in microchannels is essential for device design and performance.

Purpose of the Study:

  • To extend capillary rise theory to rectangular microchannels.
  • To investigate gas-liquid interface motion driven by capillary action.
  • To develop a predictive model for interface position in rectangular microchannels.

Main Methods:

  • Theoretical extension of capillary rise problem from circular tubes to rectangular microchannels.
  • Experimental fabrication of glass and polydimethylsiloxane (PDMS) microchannels.
  • Observation and measurement of gas-liquid interface movement in various microchannel geometries.

Related Experiment Videos

Main Results:

  • A universal formula relating nondimensional time and interface position was derived for rectangular microchannels, consistent with circular tubes.
  • Experimental data from glass and PDMS microchannels validated the theoretical model.
  • A dimensionless driving force variable, linked to dynamic contact angles, was determined for different liquid-channel material combinations.

Conclusions:

  • The derived formula accurately predicts gas-liquid interface motion in rectangular microchannels.
  • The dimensionless driving force variable enables prediction of interface motion across various rectangular channel sizes.
  • This work provides a valuable tool for designing and optimizing microfluidic devices.