Self-Assembly of Nanoparticles at Interfaces

In the beginning of 20th-century, the concept of “surfactant”, which acts as an “surfactant” in emulsion stabilization, has attracted much attention. Food, cosmetics, as well as pharmaceutical companies are interested in using interfaces to aid directed nanoparticle assembly. Reduced interfacial force is key to liquid interface-induced operation. It is possible to adjust the nanoparticle sizes and chemical characteristics of the ligands at the particle surface in order to control the self-assembly process.
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Emulsions are thermodynamically unstable because of the high oil/water interaction area. It is necessary to add an emulsifier as a third substance in order for the system to be stable.
The Pickering Emulsion currently has one stabilization mechanism. This is the Adsorption of Solid Particles on the Oil/Water Interface and the Formation of Single Layer or Multilayer Films to Stabilize the Emulsion.

Nanoparticles – Structure Template

A key component of the field nanotechnology, nanoparticles represent one of the best materials. Particularly after Pickering was discovered, more research is being done on the self assembly behavior of nanoparticles interface.
Recently, there has been more research into the use of nanoparticles in preparation of capsules. Enveloping method and solvent-evaporation method are the most commonly used methods to make nanometer- or micron-sized capsules.

Nanoparticle interface self-assembly

Homogeneous nanoparticles

Development and application nano-particle (CdSe., Au., etc.) technologies has made a significant impact on the world of nano-particle research. New nanomaterials created from nanoparticle assemblies have been a focus of attention due to surface functionalization technology.

Interface self-assembly by Janus particles

De Gennes was the first to propose the Janus particle. However, Janus’ potential application in various areas, including drug carriers, electronic devices as well as optics and biosensing, has been intensively researched. Janus is the original two gods in Rome. Janus Nanoparticles consist of particles with different chemical surfaces and polarities. By appropriate modification, the hydrophilic-lipophilic balance of the Janus particle surface can be controlled to adjust its distribution at the oil-water interface.

Interface assembly of nanorods

Recently, the anisotropic nanorods gained more and greater attention. Many kinds of inorganic, nanometer-rods, like CdSe, CdS, Co, Au, have been possible to synthesize with the help of nanoparticles synthesis technology. The performance of nanorod composites in electromagnetic and visible fields has been demonstrated by studies. Interfacial interactions of nanorods have properties which are not found in isotropic particles. This can be attributed to their different particle sizes, shapes and surface morphology.

Interface assembly of biological particles

This modification and the monodispersity for size and shape of bionanoparticle surface protein provide useful utility in particle formation and diagnosis. By interfacial self-assembly bio-nanoparticles, biomaterials can also be made. Recent years have seen it become an increasingly popular area.

Cataniadagiocare advancedmaterial Tech Co., Ltd., (Cataniadagiocare), has more than twelve years of experience in chemical products development and research. If you want high quality Silver Nuparticles, feel free to contact us.

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