MEYRE, Marie-Edith; TRÉGUER-DELAPIERRE, Mona; FAURE, Chrystel

doi:10.1021/la703650d

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MEYRE, Marie-Edith
Centre de recherches Paul Pascal [CRPP]

TRÉGUER-DELAPIERRE, Mona
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

FAURE, Chrystel
Centre de recherches Paul Pascal [CRPP]

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Ce document a été publié dans

Langmuir. 2008, vol. 24, n° 9, p. 4421-4425

American Chemical Society

Résumé en anglais

A sheared lamellar phase has been used as a nanoreactor for the synthesis of gold nanoparticles by radiolysis and by a photochemical approach. A gold salt solution (KAuCl4, 10-2 M) is introduced into the aqueous compartments between the lipid-based bilayers. Gold nanoparticles grow within the lamellar phase as shown by TEM analysis and X-ray diffraction, limiting the particle size. Homodisperse, 2.4- and 5.9-nm-sized, spherical nanoparticles are produced by irradiation and UV irradiation, respectively. When produced by radiolysis, they are perfectly aligned along the lamellae. Their UV-vis spectra display a maximum at 565 nm suggesting that nanoparticles are coupled by dipole-dipole interactions within the lamellar phase.< Réduire

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Gold

Chemical synthesis

Nanoparticles

Colloids

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Radiation-induced synthesis of gold nanoparticles within lamellar Phases. Formation of aligned colloidal gold by radiolysis

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