Skip to Main content Skip to Navigation
Journal articles

Behaviour of hybrid inside/out Janus nanotubes at an oil/water interface. A route to self-assembled nanofluidics?

P. Picot 1 O. Taché 1 F. Malloggi 1 T. Coradin 2 A. Thill 1, * 
* Corresponding author
1 LIONS - Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : Imogolites are natural aluminosilicate nanotubes that have a diameter of a few nanometers and can be several microns long. These nanotubes have different chemical groups on their internal (Si-OH) and external (Al-OH-Al) surfaces, that can be easily functionalised independently on both surfaces. Here we show that taking advantage of the particular shape and chemistry of imogolite, it is possible to prepare inside/out janus nanotubes. Two kinds of symmetric janus nanotubes are prepared: one with an external hydrophilic surface and an internal hydrophobic cavity (imo-CH3) and one with an external hydrophobic surface and a hydrophilic internal cavity (OPA-imo). The behaviour of such inside/out janus nanotubes at oil/water interfaces is studied. The OPA-imo adsorbs strongly at the oil/water interface and is very efficient in stabilising water-in-oil emulsions through an arrested coalescence mechanism. Imo-CH3 also adsorbs at the oil/water interface. It stabilises oil-in-water emulsions by inducing slow oil-triggered modifications of the viscosity of the continuous phase. The possible transport of small molecules inside the imo-CH3 nanotubes is evidenced, opening up routes towards selfassembled nanofluidics.
Document type :
Journal articles
Complete list of metadata

Cited literature [26 references]  Display  Hide  Download
Contributor : Serge Palacin Connect in order to contact the contributor
Submitted on : Monday, October 10, 2016 - 6:20:24 PM
Last modification on : Wednesday, December 15, 2021 - 11:20:14 AM
Long-term archiving on: : Saturday, February 4, 2017 - 1:30:44 AM


Publisher files allowed on an open archive



P. Picot, O. Taché, F. Malloggi, T. Coradin, A. Thill. Behaviour of hybrid inside/out Janus nanotubes at an oil/water interface. A route to self-assembled nanofluidics?. Faraday Discussions, Royal Society of Chemistry, 2016, 191, pp.391 - 406. ⟨10.1039/C6FD00034G⟩. ⟨cea-01378819⟩



Record views


Files downloads