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

Transmission-based Precautions II: Airborne and Protective Environment01:25

Transmission-based Precautions II: Airborne and Protective Environment

1.5K
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
1.5K
Inhaled Medications01:23

Inhaled Medications

407
Inhaled medications are crucial for managing chronic obstructive pulmonary disease (COPD) and asthma. They are essential for effective treatment and control, ensuring optimal respiratory health and well-being. Inhaled medication delivers drugs directly to the lungs, providing a rapid onset of action and reducing systemic side effects compared to oral or injectable medications. Three primary types of inhalation devices are used to administer these medications: nebulizers, metered-dose inhalers...
407
Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

1.0K
Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required
1.0K
Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

233
Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...
233
Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

262
Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
262
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

996
Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
996

You might also read

Related Articles

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

Sort by
Same author

Sequential buckling in fluid-filled cylindrical shells.

Communications physics·2026
Same author

Dynamics of evaporating, interconnected droplets.

Soft matter·2025
Same author

Comparison of an Attention-Based Multiple Instance Learning (MIL) With a Visual Transformer Model: Two Weakly Supervised Deep Learning (DL) Algorithms for the Detection of Histopathologic Lesions in the Rat Liver to Distinguish Normal From Abnormal.

Toxicologic pathology·2025
Same author

Dynamic heterogeneity of short semi-crystalline polymer chains during recrystallization.

The Journal of chemical physics·2025
Same author

Swelling and Evaporation Determine Surface Morphology of Grafted Hydrogel Thin Films.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Uncovering the mechanical secrets of the squirting cucumber.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same journal

Variational modeling and numerical simulations for evaporating thin droplets and coffee-ring effect.

The European physical journal. E, Soft matter·2026
Same journal

What is active wetting?

The European physical journal. E, Soft matter·2026
Same journal

Metallic microresonator spectral modes with inhomogeneously twisted nematic in magnetic field.

The European physical journal. E, Soft matter·2026
Same journal

Perspective on the paper: GDR MiDi. On dense granular flows.

The European physical journal. E, Soft matter·2026
Same journal

Dynamics of a three-dimensional oil drop driven by a surface acoustic wave over topography.

The European physical journal. E, Soft matter·2026
Same journal

Resolvability parameters in molecular graphs of antimalarial drugs.

The European physical journal. E, Soft matter·2026
See all related articles

Related Experiment Video

Updated: Sep 17, 2025

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

13.9K

Droplet-on-demand using a positive pressure pulse.

Mathieu Oléron1,2, Grégoire Clement1,2, Samuel Hidalgo-Caballero1,2

  • 1Gulliver UMR 7083 CNRS, ESPCI-PSL, 10 rue Vauquelin, 75005, Paris, France.

The European Physical Journal. E, Soft Matter
|July 2, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces on-demand droplet generation in microfluidics using pressure pulses. This method allows for controlled droplet volume and production rate, even creating elongated plugs not possible with steady flow.

More Related Videos

Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals
04:22

Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals

Published on: March 30, 2017

7.8K
Dry Powder and Nebulized Aerosol Inhalation of Pharmaceuticals Delivered to Mice Using a Nose-only Exposure System
07:28

Dry Powder and Nebulized Aerosol Inhalation of Pharmaceuticals Delivered to Mice Using a Nose-only Exposure System

Published on: April 6, 2017

40.9K

Related Experiment Videos

Last Updated: Sep 17, 2025

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

13.9K
Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals
04:22

Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals

Published on: March 30, 2017

7.8K
Dry Powder and Nebulized Aerosol Inhalation of Pharmaceuticals Delivered to Mice Using a Nose-only Exposure System
07:28

Dry Powder and Nebulized Aerosol Inhalation of Pharmaceuticals Delivered to Mice Using a Nose-only Exposure System

Published on: April 6, 2017

40.9K

Area of Science:

  • Microfluidics
  • Biphasic Systems
  • Fluid Dynamics

Background:

  • Steady-state droplet generation in microfluidics is limited by pressure ranges.
  • High pressures can lead to stable liquid jet formation instead of droplets.
  • Pressure conditions dictate both droplet volume and generation rate in steady flow.

Purpose of the Study:

  • To develop an on-demand droplet production method using positive pressure pulses.
  • To enable droplet generation within and beyond steady-state pressure limits.
  • To decouple droplet volume from production rate in microfluidic systems.

Main Methods:

  • Utilizing a flow-focusing microfluidic geometry.
  • Applying a positive pressure pulse to the dispersed-phase inlet.
  • Developing a simple model considering hydraulic resistances to capture droplet behavior.

Main Results:

  • Achieved on-demand droplet generation and control.
  • Enabled droplet production beyond typical steady-state pressure ranges.
  • Demonstrated the formation of elongated plugs at peak pulse pressures.
  • Validated droplet volume and generation onset with a hydraulic resistance model.

Conclusions:

  • On-demand droplet generation via pressure pulsing offers enhanced control over biphasic systems.
  • This strategy decouples droplet volume and production rate, expanding microfluidic capabilities.
  • The developed model provides design rules for creating individual droplets or elongated plugs.