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Related Concept Videos

Chemical Equilibria: Systematic Approach to Equilibrium Calculations01:21

Chemical Equilibria: Systematic Approach to Equilibrium Calculations

Equilibrium calculations for systems involving multiple equilibria are often complex. For example, to calculate the solubility of a sparingly soluble salt in an aqueous solution in the presence of a common ion, one must consider all the equilibria in this solution. Calculations for these systems can be complicated and tedious, so a systematic approach with a series of steps is often helpful. The process is detailed below.
The first step is to identify all the chemical reactions involved, The...
Introduction to Chemical Reactions01:23

Introduction to Chemical Reactions

All chemical reactions begin with a reactant, the general term for one or more substances entering the reaction. Sodium and chloride ions, for example, are the reactants in the production of table salt. One or more substances produced by a chemical reaction are called the product. Chemical reactions follow the law of conservation of mass, which means that matter cannot be created nor destroyed in a chemical reaction. The components of the reactants—the number of atoms and the elements—are all...
Thermal Sigmatropic Reactions: Overview01:16

Thermal Sigmatropic Reactions: Overview

Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in 1,5-hexadiene, referred to as...
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
Complexation Equilibria: Overview01:23

Complexation Equilibria: Overview

Complexation reactions take place when dative or coordinate covalent bonds form between metal ions and ligands. The compounds formed in these reactions are called coordination compounds. The number of bonds formed between the metal ion and the ligands is called its coordination number. Generally, most metal ions in an aqueous solution are solvated by water molecules and thus exist as aqua complexes.
The equilibrium constant of the complexation reaction is represented as the formation constant...
Chemical Reactions in Aqueous Solutions03:03

Chemical Reactions in Aqueous Solutions

Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.

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Synthesis and Characterization of Supramolecular Colloids
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Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Toward self-constructing materials: a systems chemistry approach.

Nicolas Giuseppone1

  • 1SAMS research group, icFRC, University of Strasbourg, Institut Charles Sadron CNRS, 23 rue du Loess, BP 84047, 67034 Strasbourg cedex 2, France. giuseppone@unistra.fr

Accounts of Chemical Research
|April 27, 2012
PubMed
Summary
This summary is machine-generated.

Researchers are developing advanced "smart" materials inspired by life, combining metabolism, mutation, and self-replication. Dynamic combinatorial libraries and self-replicating supramolecular assemblies show promise for responsive and autonomous materials.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Chemical Engineering

Background:

  • Designing next-generation smart materials requires chemical systems that mimic life's responsiveness, adaptability, and multitasking capabilities.
  • Nature-inspired advanced artificial systems are crucial for developing materials with life-like properties.
  • Key life properties to emulate include metabolism, mutation, and self-replication for advanced material design.

Purpose of the Study:

  • To discuss endeavors toward designing advanced functional materials inspired by nature.
  • To explore dynamic molecular libraries and their role in creating complex functional systems.
  • To introduce self-replicating supramolecular assemblies for electronic nanocircuits and autonomous materials.

Main Methods:

  • Utilizing dynamic combinatorial libraries based on reversibly interacting molecules in thermodynamic equilibria.
  • Coupling dynamic combinatorial systems with kinetic feedback loops to achieve self-replication.
  • Investigating self-replicating supramolecular assemblies capable of signal transfer and integration into nanocircuits.

Main Results:

  • Dynamic molecular libraries demonstrate hierarchical dynamics and responsiveness to chemical and physical stimuli.
  • Kinetic feedback loops enable amplification of selected components, leading to self-replicating pathways.
  • Self-replicating supramolecular assemblies were discovered that can transfer electric signals and self-organize into nanocircuits.

Conclusions:

  • Dynamic combinatorial systems and self-replication are key to developing advanced responsive and autonomous materials.
  • These systems can process information, self-assemble, and potentially evolve, leading to increasingly complex materials.
  • The research paves the way for a new generation of smart materials with life-like functionalities.