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

What is an Electrochemical Gradient?01:26

What is an Electrochemical Gradient?

127.8K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
127.8K
Complement System01:27

Complement System

10.5K
The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
10.5K
Complementation Tests00:49

Complementation Tests

6.2K
A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
6.2K
Impact of Groups on Groups01:19

Impact of Groups on Groups

246
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
246
Scatter Plot01:15

Scatter Plot

11.2K
The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:
11.2K
Light Acquisition02:16

Light Acquisition

9.6K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.6K

You might also read

Related Articles

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

Sort by
Same author

Electrochemically-generated ferricyanide enables thiol-ene capture of protein-protein binding.

Organic & biomolecular chemistry·2025
Same author

The solubility product controls the rate of calcite dissolution in pure water and seawater.

Chemical science·2024
Same author

Calcifying Coccolithophore: An Evolutionary Advantage Against Extracellular Oxidative Damage.

Small (Weinheim an der Bergstrasse, Germany)·2023
Same author

Templated 2D Polymer Heterojunctions for Improved Photocatalytic Hydrogen Production.

Advanced materials (Deerfield Beach, Fla.)·2023
Same author

Rapid Opto-electrochemical Differentiation of Marine Phytoplankton.

ACS measurement science au·2023
Same author

Single Calcite Particle Dissolution Kinetics: Revealing the Influence of Mass Transport.

ACS measurement science au·2023

Related Experiment Video

Updated: Jan 31, 2026

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
05:03

Precise Electrochemical Sizing of Individual Electro-Inactive Particles

Published on: August 4, 2023

1.7K

Electrochemical impacts complement light scattering techniques for in situ nanoparticle sizing.

Ruochen Xie1, Christopher Batchelor-McAuley, Neil P Young

  • 1Department of Chemistry, Oxford University, UK. richard.compton@chem.ox.ac.uk.

Nanoscale
|January 10, 2019
PubMed
Summary

The electrochemical nano-impacts technique accurately sizes nanoparticles, outperforming light scattering methods like Dynamic Light Scattering (DLS) and Nanoparticle Tracking Analysis (NTA) for both small and mixed-size samples.

More Related Videos

Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes
04:40

Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes

Published on: July 7, 2023

3.2K
Application of Voltage in Dynamic Light Scattering Particle Size Analysis
07:51

Application of Voltage in Dynamic Light Scattering Particle Size Analysis

Published on: January 24, 2020

10.4K

Related Experiment Videos

Last Updated: Jan 31, 2026

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
05:03

Precise Electrochemical Sizing of Individual Electro-Inactive Particles

Published on: August 4, 2023

1.7K
Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes
04:40

Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes

Published on: July 7, 2023

3.2K
Application of Voltage in Dynamic Light Scattering Particle Size Analysis
07:51

Application of Voltage in Dynamic Light Scattering Particle Size Analysis

Published on: January 24, 2020

10.4K

Area of Science:

  • Nanotechnology
  • Electrochemistry
  • Materials Science

Background:

  • Established nanoparticle sizing techniques include Dynamic Light Scattering (DLS) and Nanoparticle Tracking Analysis (NTA).
  • These light scattering methods accurately size larger (30 nm) spherical particles but struggle with smaller (20 nm) or mixed-size nanoparticle samples.
  • Accurate nanoparticle characterization is crucial for various applications, including materials science and nanotechnology.

Purpose of the Study:

  • To evaluate the electrochemical particle-impact technique (nano-impacts) as a complementary or alternative method for nanoparticle sizing.
  • To compare the accuracy and resolution of nano-impacts against DLS and NTA for both monodisperse and bimodal nanoparticle samples.
  • To determine the effectiveness of nano-impacts in sizing nanoparticles of different sizes, including smaller and mixed populations.

Main Methods:

  • Utilized the electrochemical particle-impact technique (nano-impacts) for nanoparticle sizing.
  • Employed Dynamic Light Scattering (DLS) and Nanoparticle Tracking Analysis (NTA) as comparative techniques.
  • Tested monodisperse samples of 20 nm and 30 nm silver nanoparticles.
  • Analyzed a bimodal sample containing both 20 nm and 30 nm silver nanoparticles.

Main Results:

  • Nano-impacts demonstrated high accuracy (<5% error) in determining effective diameters of silver nanoparticles.
  • The electrochemical technique accurately sized both 20 nm and 30 nm individual silver nanoparticles, quantifying them by constituent atoms.
  • Nano-impacts effectively resolved the two distinct sizes in the bimodal sample, showcasing accurate sizing irrespective of polydispersity.
  • DLS and NTA failed to accurately size the 20 nm sample and could not resolve the bimodal mixture due to inherent light scattering limitations.

Conclusions:

  • Electrochemical nano-impacts offer significant advantages over traditional light scattering methods for nanoparticle sizing.
  • This technique provides superior accuracy and resolution, particularly for smaller nanoparticles and polydisperse samples.
  • Nano-impacts present a powerful tool for precise nanoparticle characterization across various sizes and distributions.