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Related Concept Videos

Colloids03:22

Colloids

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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...
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Complexation Equilibria: Overview

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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...
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Formation of Complex Ions

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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

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Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with...
3.6K
Complexation Equilibria: Factors Influencing Stability of Complexes01:09

Complexation Equilibria: Factors Influencing Stability of Complexes

693
In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
693
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

974
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
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Related Experiment Video

Updated: Dec 10, 2025

Assembly and Characterization of Polyelectrolyte Complex Micelles
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On Complex Coacervate Core Micelles: Structure-Function Perspectives.

Jose Rodrigo Magana1, Christian C M Sproncken1, Ilja K Voets1

  • 1Laboratory of Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.

Polymers
|September 3, 2020
PubMed
Summary
This summary is machine-generated.

Complex coacervates core micelles (C3Ms) form from block copolymers and oppositely charged species. This review explores their diverse applications, from nanomedicine to catalysis, highlighting structure-function relationships.

Keywords:
co-assemblycomplex coacervate core micelleinterpolyelectrolyte complexpolyelectrolytespolyion complexpolyplexprotein-polymer complexstructure-function relations

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Area of Science:

  • Polymer Science
  • Materials Science
  • Nanotechnology

Background:

  • Complex coacervates core micelles (C3Ms) are formed by the co-assembly of ionic-neutral block copolymers with oppositely charged species.
  • These nanometric colloidal complexes have garnered significant interest in various scientific fields.

Purpose of the Study:

  • To review recent studies on the functional roles of C3Ms.
  • To focus on emerging structure-function relationships within C3Ms.
  • To identify remaining knowledge gaps in C3M research.

Main Methods:

  • Literature review of recent studies on C3Ms.
  • Analysis of structure-function relationships in C3M applications.
  • Identification of current limitations and future research directions.

Main Results:

  • C3Ms are versatile nanomaterials with established applications in nanomedicine for controlled delivery and release.
  • Emerging research demonstrates C3M utility in gelation, catalysis, nanoparticle synthesis, and sensing.
  • Key structure-function relationships are being elucidated, paving the way for tailored C3M design.

Conclusions:

  • C3Ms represent a promising class of materials with expanding applications beyond nanomedicine.
  • Further research into structure-function dynamics is crucial for optimizing C3M performance.
  • Addressing knowledge gaps will accelerate the development of novel C3M-based technologies.