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

ATP Driven Pumps III: V-type Pumps01:30

ATP Driven Pumps III: V-type Pumps

4.1K
V-type pumps are ATP-driven pumps found in the vacuolar membranes of plants, yeast, endosomal and lysosomal membranes of animal cells, plasma membranes of a few specialized eukaryotic cells, and some prokaryotes. They are also known as the V1Vo-ATPase, that couple ATP hydrolysis to transport protons against a concentration gradient.
The peripheral or cytosolic V1 domain with eight subunits is involved in ATP hydrolysis. The integral or transmembrane V0 domain containing at least five subunits...
4.1K
ATP Driven Pumps II: P-type Pumps01:34

ATP Driven Pumps II: P-type Pumps

5.3K
The P-type pumps are a large family of integral membrane transporter ATPases. They are divided into five major types based on substrate specificity, from I to V.
A typical P-type pump has three cytosolic domains: nucleotide-binding (N), phosphorylation (P), and activator (A) domains. These domains are connected to the membrane-spanning helices by short amino acid segments. ATP hydrolysis and covalent phosphoenzyme intermediate formation are crucial parts of the catalytic cycle. At the highly...
5.3K
ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

9.0K
ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
9.0K
Pumped Concrete01:13

Pumped Concrete

146
Concrete in large quantities can be pumped across long distances for placing in inaccessible sites. This system comprises a hopper that receives concrete from a mixer, a pump to propel the concrete, and pipelines that facilitate its delivery.
For direct-acting pumps, the concrete enters the pump via the inlet valve under the action of gravity and suction created by the movement of the piston. This concrete is then forced into the pipeline and out through the outlet valve by the forward movement...
146

You might also read

Related Articles

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

Sort by
Same author

Laser-Induced Surface Reconstruction of Carbon Fiber Cloth with Enhanced Capillary Performance for Flexible Thermal Management.

ACS applied materials & interfaces·2026
Same author

In search of exotic pairing in the Hubbard model: Many-body computation and quantum gas microscopy.

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

Visualizing the impact of quenched disorder on 2D electron Wigner solids.

Nature·2026
Same author

Development and Applications of a 1K SNP Panel for Whiteleg Shrimp: From Pedigree Reconstruction to Genomic Selection.

International journal of molecular sciences·2026
Same author

Exploration of the Role of M2 Macrophages in Hepatocellular Carcinoma: Insights into Disulfidptosis and Cellular Interactions.

Frontiers in bioscience (Landmark edition)·2026
Same author

Complete genome sequence of a novel carlavirus infecting Passiflora edulis in China.

Archives of virology·2026
Same journal

Mechanistic insights into cellular deformation enable enhanced extensional-flow cytometry for label-free classification and sorting.

Microsystems & nanoengineering·2026
Same journal

AlGaN/GaN HEMT Hâ‚‚ sensor with integrated Wheatstone bridge and on-chip microheater for 0.1-ppm detection.

Microsystems & nanoengineering·2026
Same journal

Fully flexible large-area MEMS-based triaxial force sensor compatible with flat panel display manufacturing.

Microsystems & nanoengineering·2026
Same journal

Self-aligned assembly of piezoelectric nanorods for 6G wireless communications.

Microsystems & nanoengineering·2026
Same journal

Wearable ultrasound: a review of core technologies and clinical applications in cardiovascular monitoring.

Microsystems & nanoengineering·2026
Same journal

Microfluidic encapsulation of the human gut microbiota-a tool for research and beyond.

Microsystems & nanoengineering·2026
See all related articles

Related Experiment Video

Updated: Oct 19, 2025

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps
07:34

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps

Published on: August 5, 2015

9.6K

Knudsen pumps: a review.

Xiaowei Wang1, Tianyi Su1, Wenqing Zhang1

  • 1School of Mechanical Engineering and Automation, Northeastern University, 110819 Shenyang, China.

Microsystems & Nanoengineering
|September 27, 2021
PubMed
Summary
This summary is machine-generated.

Knudsen pumps (KPs) are micro-pumps creating gas flows using temperature differences. This review covers their configurations, performance, and applications, offering insights for future research in microfluidics.

Keywords:
NEMSStructural properties

More Related Videos

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster
11:47

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster

Published on: December 22, 2018

9.3K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.2K

Related Experiment Videos

Last Updated: Oct 19, 2025

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps
07:34

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps

Published on: August 5, 2015

9.6K
A 100 KW Class Applied-field Magnetoplasmadynamic Thruster
11:47

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster

Published on: December 22, 2018

9.3K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.2K

Area of Science:

  • Physics
  • Engineering
  • Microfluidics

Background:

  • Knudsen pumps (KPs) are micro-devices utilizing thermal gradients for rarefied gas manipulation.
  • They offer advantages like no moving parts, simple design, and low energy consumption.
  • Increasing relevance in Micro/Nano Electro Mechanical Systems (MEMS/NEMS) drives research.

Purpose of the Study:

  • To provide a comprehensive review of Knudsen pumps.
  • To define and classify KPs based on thermal flow mechanisms.
  • To analyze current research on KP configurations, performance, and applications.

Main Methods:

  • Literature review and analysis of existing research on Knudsen pumps.
  • Classification of KPs according to their underlying flow physics.
  • Synthesis of data on configurations, performance metrics, and application domains.

Main Results:

  • Detailed review of various Knudsen pump designs and their operational principles.
  • Analysis of performance characteristics, including flow rate and efficiency.
  • Compilation of diverse applications, from vacuum generation to gas separation.

Conclusions:

  • Knudsen pumps are versatile microfluidic devices with significant potential.
  • Computational methods are crucial for optimizing KP performance.
  • Further research is needed to address current limitations and expand applications.