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Micelles

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...

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Related Experiment Video

Updated: Apr 24, 2026

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

Two-dimensional DPPC based emulsion-like structures stabilized by silica nanoparticles.

Eduardo Guzmán¹, Davide Orsi, Luigi Cristofolini

¹Consiglio Nazionale delle Ricerche-Istituto per l'Energetica e le Interfasi, U.O.S. Genova (CNR-IENI) , Via De Marini 6, 16149 Genova, Italy.

Langmuir : the ACS Journal of Surfaces and Colloids

|September 12, 2014

Summary

This summary is machine-generated.

Mixed surface layers of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and silica nanoparticles form stable 2D Pickering emulsions. Nanoparticles stabilize DPPC domains, preventing coalescence during compression.

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Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

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Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

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Published on: June 8, 2016

Area of Science:

Materials Science
Surface Chemistry
Nanotechnology

Background:

Mixed surface layers of lipids and nanoparticles are of interest for advanced material applications.
Understanding nanoparticle-lipid interactions is crucial for controlling self-assembly and material properties.

Purpose of the Study:

To investigate the mechanical and structural properties of mixed surface layers composed of DPPC and silica NPs.
To explore how nanoparticle incorporation affects DPPC monolayer phase behavior and domain formation.

Main Methods:

Langmuir trough
Fluorescence microscopy
Ellipsometry
Scanning Electron Microscopy (SEM)

Main Results:

Nanoparticle incorporation alters molecular orientation and domain formation mechanisms.
Silica NPs preferentially distribute within the liquid expanded phase of DPPC.
The mixed layer forms a stable, homogeneous 2D analogue of a Pickering emulsion.
NPs induce circular DPPC domains and prevent their growth and coalescence.

Conclusions:

Mixed DPPC-silica nanoparticle layers exhibit properties of 2D Pickering emulsions.
Nanoparticles stabilize lipid domains, leading to enhanced structural integrity of the monolayer.