Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Energy Conservation and Bernoulli's Equation

Energy Conservation and Bernoulli's Equation

Applying the conservation of energy principle or the work-energy theorem to an incompressible, inviscid fluid in laminar, steady, irrotational flow leads to Bernoulli's equation. It states that the sum of the fluid pressure, potential, and kinetic energy per unit volume is constant along a streamline.
All the terms in the equation have the dimension of energy per unit volume. The kinetic energy per unit volume is called the kinetic energy density, and the potential energy per unit volume is...

You might also read

Related Articles

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

Sort by

Same author

Cation/anion and monovalent/divalent selectivity in negatively charged nanopores: The effect of modeling the charged surface groups.

The Journal of chemical physics·2026

Same author

Ionic Rearrangements Lead to Like-Charge Attraction in a Nanoslit.

The journal of physical chemistry. B·2026

Same author

Combined effect of confinement and dielectric exclusion on ion adsorption in slits, pores, and cavities.

AIP advances·2024

Same author

Blink nadir measurements of sarcoplasmic reticulum are consistent with strong local Ca<sup>2+</sup> depletion.

Biophysical journal·2024

Same author

Charge Inversion in 1:1 Electrolytes: Analyzing the Energetics.

The journal of physical chemistry. B·2023

Same author

Surface charge regulation using classical density functional theory: the effect of divalent potential determining ions.

Physical chemistry chemical physics : PCCP·2022

Same journal

Intrinsic Superconducting Gap in Bilayer KCa<sub>2</sub>Fe<sub>4</sub>As<sub>4</sub>F<sub>2</sub> and Decoupled Monolayer FeAs.

Nano letters·2026

Same journal

Programmable Hydrogen-Assisted Chemical Vapor Deposition Growth and Bipolar Transport in Two-Dimensional MoO<sub>2</sub> Nanoflakes.

Nano letters·2026

Same journal

A Curvature-Modulated Strategy for Single-Atom Catalysts toward Reciprocal Regulation in Li-S Batteries.

Nano letters·2026

Same journal

Vacuum Pyrolysis Engineered CoSb/C Scaffold for Sodium Metal Anodes with Sodiophilic and Superionic Interphase.

Nano letters·2026

Same journal

Hexagonal SiGe Quantum Dots in Nanowires.

Nano letters·2026

Same journal

Monolithic Axial InGaAs Quantum Dot Emitters in GaAs-Based Nanowires via Sb-Mediated Facet Engineering.

Nano letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 25, 2026

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

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

Published on: March 13, 2016

High energy conversion efficiency in nanofluidic channels.

Dirk Gillespie¹

¹Department of Molecular Biophysics and Physiology, Rush University Medical Center, Chicago, IL, USA. dirk_gillespie@rush.edu

|February 4, 2012

Summary

This summary is machine-generated.

Layering large ions in nanofluidic channels can boost hydrostatic to electrical energy conversion efficiency over 50%. This method leverages ion concentration profiles near charged walls to enhance streaming conductance and power generation.

More Related Videos

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Published on: February 5, 2020

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

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

Published on: September 2, 2009

Related Experiment Videos

Last Updated: May 25, 2026

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

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

Published on: March 13, 2016

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Published on: February 5, 2020

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

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

Published on: September 2, 2009

Area of Science:

Nanofluidics
Electrokinetics
Energy Conversion

Background:

Nanofluidic channels offer potential for energy harvesting.
Efficient conversion of hydrostatic energy to electrical power is a key challenge.

Purpose of the Study:

To propose a novel method for high-efficiency energy conversion in nanofluidic systems.
To investigate the role of ion layering at interfaces.

Main Methods:

Theoretical proposal based on ion behavior at charged walls.
Analysis of ion concentration profiles and pressure-driven velocity.

Main Results:

Layering of large ions at the wall/liquid interface can achieve >50% energy conversion efficiency.
High ion concentrations away from walls enhance streaming conductance.
Increased streaming conductance leads to higher energy conversion efficiency.

Conclusions:

Ion layering is a promising strategy for efficient nanofluidic energy conversion.
Understanding ion behavior at interfaces is crucial for optimizing energy harvesting devices.