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

Typical Model Studies01:30

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Surface Tension of Fluid01:22

Surface Tension of Fluid

Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies with...
Capillarity in Fluid01:19

Capillarity in Fluid

Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Types of Fluids01:27

Types of Fluids

Fluids can be classified into Newtonian and non-Newtonian fluids based on their response to shear stress. Newtonian fluids have a linear relationship between shear stress and the shear strain rate, following Newton's law of viscosity. Their viscosity remains constant regardless of the shear rate, making their behavior predictable and easier to analyze. Common examples include water, air, oil, and gasoline.
In contrast, non-Newtonian fluids do not follow Newton's law of viscosity, and their...
Two Components: Liquid–Liquid Systems01:27

Two Components: Liquid–Liquid Systems

A pressure-composition phase diagram explicitly describes the behavior of an ideal solution of two volatile liquids under varying pressures and compositions. A pressure-composition diagram has two main curves. The bubble point curve represents the plot of pressure versus liquid mole fraction. It indicates the pressure at which the first bubble of vapor forms from the liquid phase as the system pressure decreases.The dew point curve is the pressure versus vapor mole fraction. It indicates the...
Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

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...

You might also read

Related Articles

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

Sort by
Same author

Site-specific post-translational modification detection by polar charged engineered MspA nanopores.

Chemical science·2026
Same author

Acylhydrazone-Linked Covalent Organic Frameworks.

Journal of the American Chemical Society·2026
Same author

Dual-Interface Nanopore Array Sensor Revealing the Synergistic Oscillations of Lactate Efflux in Cancer Cells.

Angewandte Chemie (International ed. in English)·2026
Same author

Single crystal covalent organic frameworks.

Chemical Society reviews·2026
Same author

A robust Au-C[triple bond, length as m-dash]C anchoring group greatly improves the signal stability of electrochemical aptamer-based sensors for <i>in vivo</i> measurements.

Chemical science·2026
Same author

Photoactivated Signaling Networks using DNA-Based Synthetic Organelles as Biomimetic Protocells.

Angewandte Chemie (International ed. in English)·2026
Same journal

Formation of Bimetallic Nanoparticles via Exsolution Using a Reducible Metal Oxide Capping Layer.

ACS nano·2026
Same journal

Cold-Driven Thermoelectric Patch for Postoperative Tumor Control.

ACS nano·2026
Same journal

Chemically Fueled Interfacial Supramolecular Polymerization.

ACS nano·2026
Same journal

Tactile Neuromorphic Ion-Gated Vertical Transistor Displays Enabling Dual-Output Reservoir Computing.

ACS nano·2026
Same journal

In Situ Oxygen Shuttling within a Bilayer Electrified Membrane Enables Aeration-Free Electro-Fenton Water Purification.

ACS nano·2026
Same journal

Single Atoms as Growth Directors: From Graphene Edges to Atomically Precise Interfaces in 2D Materials.

ACS nano·2026
See all related articles

Related Experiment Video

Updated: May 31, 2026

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

Seven Models for Outer Surface-Only Functionalized Nanofluidic Systems.

Lei Xu1, Qun Ma1, Linfeng Chen1,2

  • 1State Key Laboratory of Geomicrobiology and Environmental Changes, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.

ACS Nano
|May 29, 2026
PubMed
Summary
This summary is machine-generated.

Ionic current rectification (ICR) in nanofluidics is significantly influenced by outer surface functional elements (FEOS). Synergistic effects of charge and steric hindrance on the outer surface control ICR, enabling new device designs.

Keywords:
ion current rectification (ICR)nanochannelsouter surface (OS)space chargesteric hindrancesurface charge

More Related Videos

Bilayer Microfluidic Device for Combinatorial Plug Production
07:03

Bilayer Microfluidic Device for Combinatorial Plug Production

Published on: December 1, 2023

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device
14:48

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device

Published on: April 17, 2021

Related Experiment Videos

Last Updated: May 31, 2026

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

Bilayer Microfluidic Device for Combinatorial Plug Production
07:03

Bilayer Microfluidic Device for Combinatorial Plug Production

Published on: December 1, 2023

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device
14:48

Generation of Dynamical Environmental Conditions using a High-Throughput Microfluidic Device

Published on: April 17, 2021

Area of Science:

  • Nanofluidics
  • Surface Chemistry
  • Electrokinetics

Background:

  • Ionic current rectification (ICR) is vital for nanofluidic applications.
  • Previous research focused on inner channel walls, neglecting outer surface contributions.
  • Outer surface functional elements (FEOS) effects on ICR remain underexplored.

Purpose of the Study:

  • To investigate the impact of outer surface functional elements (FEOS) on ICR.
  • To elucidate the synergistic effects of FEOS on ionic transport.
  • To demonstrate FEOS-controlled ICR for nanofluidic device design.

Main Methods:

  • Modeling of porous polyethylene terephthalate nanochannels with outer surface functionalization.
  • Systematic analysis of steric hindrance, surface charge, and space charge effects.
  • Experimental validation using polyethylenimine as FEOS.

Main Results:

  • Outer surface functional elements (FEOS) significantly impact ICR.
  • Synergistic effects of surface charge, space charge, and steric hindrance are key to ICR.
  • Achieved an ICR of ~1000 with FEOS functionalization at 0.1 M KCl.

Conclusions:

  • FEOS play a crucial role in nanochannel electrokinetics.
  • Outer surface engineering offers a new strategy for controlling ICR.
  • Findings support the development of FEOS-engineered nanofluidic devices for biosensing and energy applications.