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 Concept Videos

Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

33.6K
Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
33.6K
Viscosity01:17

Viscosity

7.4K
When water is poured into a glass, it falls freely and quickly, whereas if honey or maple syrup is poured over a pancake, it flows slowly and sticks to the surface of the container. This difference in the flow of different kinds of liquids arises due to the fluid friction between the liquid layers and the liquid and the surrounding material. This property of fluids is called fluid viscosity. In this example, water has a lower viscosity than honey and maple syrup.
The SI unit of viscosity is...
7.4K
Viscosity of Fluid01:19

Viscosity of Fluid

1.3K
Viscosity measures the resistance a fluid offers to flow and deformation. It results from internal friction between layers of fluid moving relative to one another. Dynamic viscosity, denoted by the Greek letter mu (μ), quantifies the force needed to move one fluid layer over another. For Newtonian fluids like water and air, the relationship between the shearing stress and the rate of shearing strain is linear, meaning their viscosity remains constant regardless of the applied stress.
1.3K
Inverse Trigonometric Functions01:29

Inverse Trigonometric Functions

305
Inverse trigonometric functions are fundamental mathematical tools that reverse the actions of standard trigonometric functions. While trigonometric functions map angles to ratios, inverse trigonometric functions perform the opposite operation by mapping a ratio back to its corresponding angle. These functions are essential in various applications, particularly in determining angles when given specific distances, such as calculating elevation angles in navigation and engineering.For a function...
305
Phase Transitions02:31

Phase Transitions

23.3K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.3K
Inverse Hyperbolic Functions and Their Derivatives01:25

Inverse Hyperbolic Functions and Their Derivatives

81
The shape of a suspension bridge cable hanging under its own weight is described by a catenary curve, which is modeled using the hyperbolic cosine function. This mathematical model accurately captures the balance between gravity and tension acting along the cable. When a particular vertical position on the cable is known, the corresponding horizontal position can be determined using the inverse hyperbolic cosine function, allowing for a detailed analysis of the cable's geometry.Inverse...
81

You might also read

Related Articles

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

Sort by
Same author

Targeted activation of PPARG or AKT1 alleviates liver injury in mice with type 2 diabetes and sepsis by modulating inflammatory and metabolic pathways.

Annals of medicine·2026
Same author

Effect of starch-lipid complex on properties of starch-based materials: Mechanistic insights from molecular dynamics on chain conformation.

International journal of biological macromolecules·2026
Same author

Robust Multifunctional Superhydrophobic Coating via In Situ Micro-nano Growth and Interpenetrating Polymer Networks for Marine Applications.

ACS applied materials & interfaces·2026
Same author

Biomechanical anticoagulation by spherical platelets in extracorporeal systems.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Influence of Boron on the Microstructural Evolution, Impact and Creep Properties Stability of IN718 Superalloy During Long-Term Aging.

Materials (Basel, Switzerland)·2026
Same author

Restoring the Morphology and Function of Damaged Red Blood Cells.

Small methods·2026
Same journal

A Video Protocol of a Randomized Controlled Clinical Trial - Electrochemotherapy of Cutaneous Metastases with Reduced Dose Bleomycin (BLESS Trial).

Journal of visualized experiments : JoVE·2026
Same journal

A Standardized Ex Vivo Porcine Oromucosal Model for Evaluating Peptide Fluxes.

Journal of visualized experiments : JoVE·2026
Same journal

Lightweight English Text Classification with Deep Learning Based on Complex System Theory.

Journal of visualized experiments : JoVE·2026
Same journal

Integrating Artificial Intelligence-Assisted Translation Support into English Courses: Effects on Translation Accuracy, Perceived Stress, and Anxiety.

Journal of visualized experiments : JoVE·2026
Same journal

A Toxin-Based Counter-Selection System for Markerless Gene Deletion and High-Density Tn5 Transposon Mutagenesis in Pectobacterium brasiliense.

Journal of visualized experiments : JoVE·2026
Same journal

Seamless Multimodal Human-Robot Communication: Integration Techniques in Human-Computer Interaction.

Journal of visualized experiments : JoVE·2026
See all related articles

Related Experiment Video

Updated: Feb 11, 2026

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure
08:02

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Published on: April 17, 2018

11.1K

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure.

Jiang Li1, Jia Man2, Zhongnan Li2

  • 1School of Mechanical Engineering, University of Science and Technology Beijing.

Journal of Visualized Experiments : Jove
|May 8, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a phase-inversion co-flow device for creating uniform high-viscosity droplets. This microfluidic method overcomes challenges in generating droplets with viscosities up to 11.9 Pas for various applications.

More Related Videos

Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices
11:08

Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices

Published on: July 3, 2018

8.2K
Fabrication of Refractive-index-matched Devices for Biomedical Microfluidics
09:54

Fabrication of Refractive-index-matched Devices for Biomedical Microfluidics

Published on: September 10, 2018

8.0K

Related Experiment Videos

Last Updated: Feb 11, 2026

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure
08:02

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Published on: April 17, 2018

11.1K
Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices
11:08

Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices

Published on: July 3, 2018

8.2K
Fabrication of Refractive-index-matched Devices for Biomedical Microfluidics
09:54

Fabrication of Refractive-index-matched Devices for Biomedical Microfluidics

Published on: September 10, 2018

8.0K

Area of Science:

  • Microfluidics
  • Materials Science
  • Chemical Engineering

Background:

  • Generating monodisperse droplets with high viscosity presents a significant challenge in microfluidic systems.
  • Existing methods often struggle with highly viscous fluids, limiting applications.

Purpose of the Study:

  • To demonstrate a novel phase-inversion co-flow device for producing uniform high-viscosity droplets.
  • To overcome the limitations of current microfluidic techniques for high-viscosity droplet generation.

Main Methods:

  • Utilized a phase-inversion co-flow microfluidic capillary device with a common co-flow structure.
  • Induced phase inversion by wetting the exit tip with a low-viscosity fluid, leading to inverse encapsulation.
  • Adjusted droplet size by controlling the flow rate ratio between low- and high-viscosity fluids.

Main Results:

  • Successfully generated monodisperse droplets of high-viscosity fluids (up to 11.9 Pas).
  • Demonstrated droplet generation using glycerol, honey, starch, and polymer solutions.
  • Showcased the ability to control droplet size via flow rate adjustments.

Conclusions:

  • The phase-inversion co-flow device offers a simple and effective approach for generating monodisperse high-viscosity droplets.
  • This method has broad potential applications in materials synthesis, drug delivery, cell assays, bioengineering, and food engineering.