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ZB 10 - Soft Condensed Matter (R. Holyst)

We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!
We are different, but we all do great Science; and we have a lot of fun doing it!

Publication

Close-packed monolayers of charged Janus-type nanoparticles at the air-water interface

Author(s): Sashuk, Volodymyr and Holyst, Robert and Wojciechowski, Tomasz and Fialkowski, Marcin
Title: Close-packed monolayers of charged Janus-type nanoparticles at the air-water interface
Abstract: We present a new method to obtain close-packed monolayers composed of metal nanoparticles (NP) possessing well-defined permanent charge either sign. The method is based on the fact that ligands forming the layer exhibit ability to rearrange at the NPs surface. We that if the protecting layer is composed of a mixture of and hydrophilic charged ligands in appropriate proportion, NP exhibits properties of a Janus-type particle with one of the hydrophilic and the other hydrophobic. Such amphiphilic NPs into a monolayer of well defined surface charge at the interface. Due to strong stabilizing effect of the lateral repulsions, such monolayer can be compressed to form hexagonal structure, and then easily transferred onto a substrate with the Langmuir-Blodgett technique. (C) 2012 Elsevier Inc. All rights reserved.
Pages: 180-186
Journal: JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume: 375
ID: ISI:000302760900026
Year: 2012
DOI: 10.1016/j.jcis.2012.02.057