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Ionic Crystal Structures

Ionic Crystal Structures

Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
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Overview of Advanced Functional Groups

Overview of Advanced Functional Groups

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Types of Advanced Functional Groups
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Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...

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Isomerism in Complexes
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Related Experiment Video

Updated: Feb 13, 2026

Vapor Phase Deposition of Electroactive Poly(3,4-ethylenedioxythiophene) onto Electrospun Commodity Polymer Nanofibers

Vapor Phase Deposition of Electroactive Poly(3,4-ethylenedioxythiophene) onto Electrospun Commodity Polymer Nanofibers

Published on: March 7, 2025

Electroactive poly(vinylidene fluoride)-based structures for advanced applications.

Clarisse Ribeiro^1,2, Carlos M Costa^1,3, Daniela M Correia^4,5

¹Centro de Física, Universidade do Minho, Campus de Gualtar, Braga, Portugal.

Nature Protocols

|March 16, 2018

Summary

This summary is machine-generated.

Poly(vinylidene fluoride) (PVDF) is a versatile polymer for electroactive applications. This study details methods to create various β-phase PVDF structures for sensors, energy, and biomedical uses.

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Antimicrobial Characterization of Advanced Materials for Bioengineering Applications

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Published on: August 4, 2018

Area of Science:

Materials Science
Polymer Science
Electroactive Polymers

Background:

Poly(vinylidene fluoride) (PVDF) exhibits high dielectric constants and electroactive properties like piezoelectricity.
The β-phase of PVDF possesses the highest dipole moment and piezoelectric response, making it crucial for applications.
PVDF is favored for its processability, flexibility, and cost-effectiveness.

Purpose of the Study:

To present reproducible methods for fabricating diverse β-phase PVDF structures.
To explore various processing techniques for tailored β-PVDF morphologies.
To highlight the potential of these structures in advanced applications.

Main Methods:

Doctor blade, spin coating, printing technologies.
Non-solvent-induced phase separation (NIPS) and temperature-induced phase separation (TIPS).
Solvent-casting, freeze extraction, replica molding, electrospinning, and electrospray.

Main Results:

Successful fabrication of dense films, porous films, 3D scaffolds, patterned structures, fibers, and spheres.
Demonstration of various processing techniques to achieve specific β-PVDF morphologies.
Validation of methods for producing electroactive PVDF structures.

Conclusions:

The presented methods enable the controlled fabrication of β-PVDF structures.
These structures are suitable for a wide array of applications, including sensors, actuators, and energy devices.
The versatility of PVDF processing facilitates innovation in electroactive material applications.