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

Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

4.9K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
4.9K
Pore Size Distribution01:23

Pore Size Distribution

501
In concrete, the pore size distribution significantly influences the material's properties. Capillary pores, markedly larger than gel pores, form a vast network within partially hydrated cement paste, reducing the concrete's strength and increasing its permeability. This heightened permeability leads to a greater risk of damage from environmental factors like freeze-thaw cycles and chemical attacks, with the extent of vulnerability also being tied to the water-to-cement ratio.
Adequate...
501
Basic Postulates of Kinetic Molecular Theory: Particle Size, Energy, and Collision02:43

Basic Postulates of Kinetic Molecular Theory: Particle Size, Energy, and Collision

38.0K
The ideal-gas equation, which is empirical, describes the behavior of gases by establishing relationships between their macroscopic properties. For example, Charles’ law states that volume and temperature are directly related. Gases, therefore, expand when heated at constant pressure. Although gas laws explain how the macroscopic properties change relative to one another, it does not explain the rationale behind it.
38.0K
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

6.9K
In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
6.9K
Factors Affecting Dissolution: Particle Size and Effective Surface Area01:23

Factors Affecting Dissolution: Particle Size and Effective Surface Area

1.8K
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
1.8K
Subatomic Particles03:37

Subatomic Particles

114.4K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
114.4K

You might also read

Related Articles

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

Sort by
Same author

A Cross-Sectional Survey of Infection Prevention and Control in Funeral Facilities - 19 PLADs, China, 2024.

China CDC weekly·2026
Same author

Dimensional engineering of 3D hierarchical camellia-like supramolecular organic frameworks for enhanced electrochemiluminescence.

Chemical communications (Cambridge, England)·2026
Same author

DAXX governs the silencing of LINE1 during spermatogenesis in mice.

Nucleic acids research·2026
Same author

High-throughput visual detection of multiple sweat biomarkers based on Au@Pt modified bimetallic MOF-derived nanozyme hydrogels.

Chemical communications (Cambridge, England)·2026
Same author

OCT-Derived Virtual Fractional Flow Reserve Associated With 1-Year Outcomes After PCI in ACS Patients.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

Device Simplification: Example of the Application of a Bifunctional Molecularly Imprinted Polymer Membrane in a Visual Photoelectrochromic Chip.

Analytical chemistry·2026

Related Experiment Video

Updated: Feb 15, 2026

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
09:16

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

Published on: January 9, 2017

14.9K

Information-weighted constrained regularization for particle size distribution recovery in multiangle dynamic light

Min Xu, Jin Shen, John C Thomas

    Optics Express
    |January 13, 2018
    PubMed
    Summary

    Accurate particle size distribution recovery using dynamic light scattering (DLS) is challenging for bimodal samples. A new information-weighted constrained regularization (IWCR) method improves DLS analysis by better utilizing autocorrelation function data for precise bimodal particle size distribution recovery.

    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

    3.3K
    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: Feb 15, 2026

    Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
    09:16

    Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

    Published on: January 9, 2017

    14.9K
    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

    3.3K
    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:

    • Materials Science
    • Analytical Chemistry
    • Physical Chemistry

    Background:

    • Dynamic Light Scattering (DLS) is a standard technique for particle size measurement.
    • Accurate recovery of bimodal particle size distributions (PSDs) is difficult with DLS, particularly for closely spaced peaks or large particles (>350nm).
    • Challenges arise from inherent noise in autocorrelation function (ACF) data and limited use of PSD information during inversion.

    Purpose of the Study:

    • To investigate the distribution of PSD information within ACF data for DLS.
    • To develop and validate a novel method for improved bimodal PSD recovery in DLS.
    • To enhance the utilization of ACF data, especially the initial decay, for more accurate particle sizing.

    Main Methods:

    • Analysis of PSD information distribution within ACF data.
    • Development of an Information-Weighted Constrained Regularization (IWCR) method.
    • Application of IWCR in multiangle DLS for bimodal PSD recovery, with adjustable weighting for ACF data segments.

    Main Results:

    • The initial decay section of the ACF contains significant information, particularly for bimodal PSDs.
    • The IWCR method effectively enhances the utilization of PSD information from ACF data.
    • Successful recovery of bimodal PSDs (e.g., 400:608 nm, 448:608 nm, 500:600 nm) from simulated and experimental DLS data.
    • Demonstrated improvement in recovery resolution for closely spaced bimodal particles.

    Conclusions:

    • The IWCR method offers a significant advancement in DLS analysis for bimodal PSD recovery.
    • This technique effectively mitigates the impact of noise at larger delay times.
    • The IWCR method provides more accurate and resolved bimodal particle size distributions compared to conventional approaches.