Publication

Dispersant Stabilization of Inorganic Non-metallic Particles

Esther Amstad
2011
Patents

Abstract

A dispersant for stabilizing nanoparticles, in particular inorganic non-metallic nanoparticles is described. Said dispersant comprises at least one anchor group A, and at least one spacing group R covalently linked to said anchor group, said anchor group A is an unsaturated at least partially conjugated substituted six-membered homocycle or heterocycle and comprises two surface interacting oxygen or hydroxy substituents on adjacent carbon atoms in the ring. In the case of a homocyclic ring said ring comprises at least one further electronegative substituent on the ring, in the case of a heterocyclic ring the further electronegative substituent on the ring is optional.

Official source

https://infoscience.epfl.ch/entities/publication/ebbe0948-4f41-4924-875f-080f84a4e721

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Esther Amstad
2011
Patents

Abstract

A dispersant for stabilizing nanoparticles, in particular inorganic non-metallic nanoparticles is described. Said dispersant comprises at least one anchor group A, and at least one spacing group R covalently linked to said anchor group, said anchor group A is an unsaturated at least partially conjugated substituted six-membered homocycle or heterocycle and comprises two surface interacting oxygen or hydroxy substituents on adjacent carbon atoms in the ring. In the case of a homocyclic ring said ring comprises at least one further electronegative substituent on the ring, in the case of a heterocyclic ring the further electronegative substituent on the ring is optional.

Official source

https://infoscience.epfl.ch/entities/publication/ebbe0948-4f41-4924-875f-080f84a4e721

About this result

Related concepts (13)

Nanoparticle

A nanoparticle or ultrafine particle is usually defined as a particle of matter that is between 1 and 100 nanometres (nm) in diameter. The term is sometimes used for larger particles, up to 500 nm, or fibers and tubes that are less than 100 nm in only two directions. At the lowest range, metal particles smaller than 1 nm are usually called atom clusters instead.

Colloidal gold

Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. The colloid is coloured usually either wine red (for spherical particles less than 100 nm) or blue-purple (for larger spherical particles or nanorods). Due to their optical, electronic, and molecular-recognition properties, gold nanoparticles are the subject of substantial research, with many potential or promised applications in a wide variety of areas, including electron microscopy, electronics, nanotechnology, materials science, and biomedicine.

Nanocomposite

Nanocomposite is a multiphase solid material where one of the phases has one, two or three dimensions of less than 100 nanometers (nm) or structures having nano-scale repeat distances between the different phases that make up the material. The idea behind Nanocomposites is to use building blocks with dimensions in nanometre range to design and create new materials with unprecedented flexibility and improvement in their physical properties.

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