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Related Concept Videos

A Single-Component System01:24

A Single-Component System

In the field of chemistry, the terms "component" and "phase" hold significant importance. A component refers to a chemically distinct substance in a system that has specific properties. It is chemically homogeneous, meaning it has the same properties throughout. For example, in a mixture of salt and water, both salt and water are considered separate components because they have different chemical properties.On the other hand, a phase is a form of matter that has a consistent chemical...
The Phase Rule01:20

The Phase Rule

The phase rule describes the relationship between the variance (degrees of freedom), the number of components, and the number of phases in a system at equilibrium.Variance is a concept that denotes the number of independent intensive properties (properties are those that do not depend on the amount of material in the system), such as temperature, pressure, and composition, that can be altered without impacting the number of phases in equilibrium.In a single-component system, such as pure water,...
Phase Diagrams of Ternary Systems01:28

Phase Diagrams of Ternary Systems

Consider a ternary system, which is composed of three components: water (W), ethanoic acid (E), and trichloromethane (T). Here, Ethanoic acid (E) is fully miscible with both water (W) and trichloromethane (T), meaning it can mix entirely with either of them. However, water and trichloromethane have partial miscibility, meaning they can only mix to a certain extent, beyond which two separate phases will form.The phase diagram of a ternary system is represented as an equilateral triangle, where...
States of Matter and Phase Changes00:59

States of Matter and Phase Changes

The internal energy of a substance—the total kinetic energy of all its molecules and the potential energy of their associated forces—depends on the strength of the intermolecular forces in the condensed phases and the pressure exerted on the substance. The internal energy of a substance is the highest in the gaseous state, the lowest in the solid state, and intermediate in the liquid state. Phase transitions are caused by changes in physical conditions, such as temperature and pressure, that...
Phase Changes01:19

Phase Changes

Phase transitions play an important theoretical and practical role in the study of heat flow. In melting or fusion, a solid turns into a liquid; the opposite process is freezing. In evaporation, a liquid turns into a gas; the opposite process is condensation.
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...
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.

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Phase Behavior of Charged Vesicles Under Symmetric and Asymmetric Solution Conditions Monitored with Fluorescence Microscopy
10:08

Phase Behavior of Charged Vesicles Under Symmetric and Asymmetric Solution Conditions Monitored with Fluorescence Microscopy

Published on: October 24, 2017

Multistate and phase change selection in constitutional multivalent systems.

Mihail Barboiu1

  • 1Institut Européen des Membranes - ENSCM-UMII-CNRS, Montpellier Cedex 5, France. mihai.barboiu@iemm.univ-montp2.fr

Topics in Current Chemistry
|June 29, 2011
PubMed
Summary
This summary is machine-generated.

Molecular materials self-sort based on external stimuli, forming optimized structures. This process uses dynamic libraries and sol-gel methods to create advanced hybrid materials with reversible organic-inorganic connections.

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Last Updated: May 31, 2026

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Chemical Engineering

Background:

  • Molecular architectures can exhibit self-sorting behaviors in response to external factors.
  • Bioreceptors and internal interactions offer high selectivity for complex system analysis.
  • Dynamic libraries provide a framework for understanding multistate component selection.

Purpose of the Study:

  • To explore the constitutional self-sorting of molecular architectures and materials.
  • To investigate the role of external stimuli and internal interactions in material self-organization.
  • To develop advanced hybrid materials through sol-gel resolution of dynamic libraries.

Main Methods:

  • Utilizing external selection pressures (biomolecular targets, physical stimuli, chemical effectors).
  • Employing multistate component selection from dynamic molecular/supramolecular libraries.
  • Applying sol-gel resolution techniques to dynamic libraries.

Main Results:

  • Demonstrated constitutional self-sorting of molecular architectures under selection pressure.
  • Observed dynamic amplification of self-optimized architectures during phase changes.
  • Achieved higher self-organized constitutional hybrid materials via sol-gel resolution.

Conclusions:

  • Molecular self-sorting is a viable mechanism for creating responsive materials.
  • Dynamic libraries and sol-gel processes enable the formation of sophisticated hybrid materials.
  • The resulting hybrid materials feature reversibly connected organic and inorganic domains.