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Related Concept Videos

Liquid–Solid Solutions01:29

Liquid–Solid Solutions

The process of a solid dissolving in a liquid to form a solution is governed by the solubility limit, which is the maximum amount of the solid substance, or solute, that can be dissolved in a specific volume of the liquid or solvent. As the solute dissolves, it reaches a point where no more solute can be dissolved at a given temperature - this is known as the saturation point. However, if further solute is added and it manages to dissolve, the solution becomes supersaturated. Supersaturated...
Solid–Solid Solutions01:24

Solid–Solid Solutions

The temperature-composition phase diagram of two solids, A and B, which are immiscible in the solid phase but form miscible liquids, shows that when the temperature is low, these two exist as separate, pure solids (A and B). As the temperature increases, they transition into a single-phase liquid solution where A and B coexist. Moving from point a1 to a2 in the phase diagram, the composition changes such that solid B begins to separate from the solution, enriching the remaining liquid with A.
The Colloidal State01:29

The Colloidal State

The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called the...
Factors Affecting Dissolution: Particle Size and Effective Surface Area01:23

Factors Affecting Dissolution: Particle Size and Effective Surface Area

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 employed to...
Solution Formation02:16

Solution Formation

There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride.
This selective solubility...
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...

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Updated: May 31, 2026

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
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Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

Hollow nanoshell formation and collapse in binary solid solutions with large range of solubility.

A M Gusak1, T V Zaporozhets

  • 1Cherkasy National University, 81, Boulevard Shevchenko, Cherkasy, 18031, Ukraine.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|June 23, 2011
PubMed
Summary

This study models the formation and collapse of solid solution hollow nanoshells. Researchers analyzed the transition between formation and collapse, identifying criteria for nanoshell stability.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Computational Modeling

Background:

  • Core-shell structures are precursors to hollow nanoshells.
  • Nanoshells can transition to compact particles through collapse.
  • Understanding these transformations is crucial for nanomaterial design.

Purpose of the Study:

  • To model the formation of solid solution hollow nanoshells from core-shell structures.
  • To simulate the collapse of these nanoshells into compact particles.
  • To analyze the transition criteria between nanoshell formation and collapse.

Main Methods:

  • Phenomenological scheme modeling.
  • Monte Carlo simulations.
  • Analysis of cross-over phenomena.

Main Results:

  • A model was developed for nanoshell formation and collapse.
  • The study identified key criteria governing nanoshell formation.
  • The transition dynamics between formation and collapse were elucidated.

Conclusions:

  • The study provides insights into the stability and transformation of hollow nanoshells.
  • Findings are applicable to the design and synthesis of nanomaterials.
  • The research contributes to understanding phase transitions in nanoscale systems.