PERRO, Adeline; RECULUSA, Stéphane; RAVAINE, Serge; BOURGEAT-LAMI, Elodie; DUGUET, Etienne

doi:10.1039/b505099e

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PERRO, Adeline
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre de recherches Paul Pascal [CRPP]

RECULUSA, Stéphane
Centre de recherches Paul Pascal [CRPP]

RAVAINE, Serge
Centre de recherches Paul Pascal [CRPP]

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Journal of Materials Chemistry. 2005, vol. vol. 15, n° 35-36, p. p. 3745-3760

Royal Society of Chemistry

Resumen en inglés

Because the Roman god Janus was usually represented with two heads placed back to back, the term Janus is used for the description of particles whose surfaces of both hemispheres are different from a chemical point of view. So, they could be used as building blocks for supraparticular assemblies, as dual-functionalized devices, as particular surfactants if one hemisphere is hydrophilic and the other hydrophobic, etc. If they could allow the segregation of negative charges on one hemisphere and positive charges on the other one, they would display a giant dipole moment allowing their remote positioning by rotation in an electric field as a function of field polarity. This review deals with the great and imaginative efforts which were devoted to the synthesis of Janus particles in the last fifteen years. A special emphasis is made on scalable techniques and on those which apply to the preparation of Janus particles in the nanometer range. Specific properties and applications of Janus particles are discussed.< Leer menos

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Chemical synthesis

Janus particles

Nanoparticles

Microparticles

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Design and synthesis of Janus micro- and nanoparticles

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