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

The Nucleosome Core Particle02:10

The Nucleosome Core Particle

14.5K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
14.5K
The Nucleosome Core Particle01:12

The Nucleosome Core Particle

2.4K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their primary aim is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. On the other hand, they must allow polymerase enzymes to access histone-bound DNA during...
2.4K
Colloids03:22

Colloids

21.2K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.2K
Stability of structures01:14

Stability of structures

531
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
531
Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

11.4K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
11.4K
Subatomic Particles03:37

Subatomic Particles

113.4K
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.
113.4K

You might also read

Related Articles

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

Sort by
Same author

Linking Local Water Electrostatic Potentials to Measured Hydrogen Evolution Onset in Aqueous Electrolytes.

The journal of physical chemistry letters·2026
Same author

Flash electropolishing for TEM: Reducing FIB-induced defects in tungsten with protocols for new materials.

Journal of microscopy·2026
Same author

All-metal aromaticity of cyclo-Bi<sub>3</sub><sup>3-</sup> in diuranium and dithorium inverse-sandwich-type complexes.

Nature chemistry·2026
Same author

Solution structures in alkali nitrates and nitrites at high concentrations.

RSC advances·2026
Same author

Quantitative <sup>14</sup>N NMR with Monte Carlo Uncertainty Analysis of Nitrate/Nitrite in Alkaline Nuclear Waste.

Analytical chemistry·2026
Same author

Mn-Promoted Co/TiO<sub>2</sub> Catalysts: Quantitative Analysis of Cobalt Polymorphs and Stacking Faults and Its Effect on Fischer-Tropsch Synthesis Performance.

ACS catalysis·2026

Related Experiment Video

Updated: Feb 7, 2026

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

11.5K

Stability, Composition, and Core-Shell Particle Structure of Uranium(IV)-Silicate Colloids.

Thomas S Neill1, Katherine Morris1, Carolyn I Pearce2

  • 1Research Centre for Radwaste and Disposal, Williamson Research Centre , The University of Manchester , Oxford Road , Manchester M13 9PL , U.K.

Environmental Science & Technology
|July 13, 2018
PubMed
Summary

Uranium colloids, a major component of nuclear waste, can be stabilized by silicate. This study investigated uranium-silicate colloids, crucial for understanding uranium mobility in waste disposal.

More Related Videos

Preparation of Nucleosome Core Particles Complexed with DNA Repair Factors for Cryo-Electron Microscopy Structural Determination
07:59

Preparation of Nucleosome Core Particles Complexed with DNA Repair Factors for Cryo-Electron Microscopy Structural Determination

Published on: August 17, 2022

2.3K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Related Experiment Videos

Last Updated: Feb 7, 2026

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

11.5K
Preparation of Nucleosome Core Particles Complexed with DNA Repair Factors for Cryo-Electron Microscopy Structural Determination
07:59

Preparation of Nucleosome Core Particles Complexed with DNA Repair Factors for Cryo-Electron Microscopy Structural Determination

Published on: August 17, 2022

2.3K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Area of Science:

  • Nuclear Chemistry
  • Environmental Science
  • Materials Science

Background:

  • Uranium is the most abundant radionuclide in radioactive waste.
  • Actinide(IV) colloids, including uranium, can significantly increase radionuclide mobility.
  • Understanding uranium colloid behavior is vital for nuclear waste management and disposal.

Purpose of the Study:

  • To investigate the formation, composition, and structure of uranium(IV)-silicate colloids.
  • To assess the role of silicate in stabilizing uranium colloids under alkaline conditions.
  • To determine the relevance of these colloids to nuclear fuel storage and geological disposal.

Main Methods:

  • X-ray absorption spectroscopy
  • Ultrafiltration
  • Scanning transmission electron microscopy
  • X-ray diffraction
  • Pair distribution function analysis

Main Results:

  • Uranium(IV)-silicate colloids form under alkaline conditions (pH 9-10.5) with varying silicate concentrations.
  • Particles have a primary size of 1-10 nm and form aggregates <220 nm.
  • Colloids exhibit a UO2-rich core and a U-silicate shell, with U(IV)-silicate complexes as precursors.

Conclusions:

  • Silicate can stabilize uranium colloids under conditions relevant to nuclear waste storage and disposal.
  • Uranium-silicate colloids represent a potential pathway for uranium mobility in these environments.
  • Further research is needed to fully understand the long-term implications for geological disposal.