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Issue 4, 2011
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Structural control of gold nanoparticles self-assemblies by layer-by-layer process

Giovanna Machado,*ad   Adriano F. Feil,*b   Pedro Migowski,c   Liane Rossi,e   Marcelo Giovanela,f   Janaina da S. Crespo,f   Leonardo Miotti,bg   Maurício A. Sortica,b   Pedro L. Grande,b   Marcelo B. Pereirab  and  Ricardo R. B. Correiab  
Author affiliations

* Corresponding authors

a Centro de Tecnologias Estratégica do Nordeste – CETENE, Recife, PE, Brazil
E-mail: giovanna@cetene.gov.br
Tel: +55 81 33347200

b Instituto de Física, Universidade Federal do Rio Grande do Sul – IF-UFRGS, Porto Alegre, RS, Brazil
E-mail: affeil@if.ufrgs.br
Tel: +55 51 3308 6457

c Instituto de Química, Universidade Federal do Rio Grande do Sul – IQ-UFRGS, Porto Alegre, RS, Brazil

d Universidade Federal de Pernambuco – UFPE, Recife, PE, Brazil

e Instituto de Química, Universidade de São Paulo – IQ-USP, São Paulo, SP, Brazil

f Universidade de Caxias do Sul – UCS, Caxias do Sul, RS, Brazil

g Department of Physics, North Carolina State University, Raleigh, North Carolina, USA

Abstract

This work presents a novel way to introduce gold nanoparticles (Au NPs) in a multilayer polymer produced by the layer-by-layer (LbL) assembling technique. The technique chosen shows that, depending on the pH used, different morphological structures can be obtained from monolayer or bilayer Au NPs. The MEIS and RBS techniques allowed for the modelling of the interface polymer-NPs, as well as the understanding of the interaction of LbL system, when adjusting the pH in weak polyelectrolytes. The process reveals that the optical properties of multilayer systems could be fine-tuned by controlling the addition of metallic nanoparticles, which could also modify specific polarization responses.

Graphical abstract: Structural control of gold nanoparticles self-assemblies by layer-by-layer process

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Publication details

The article was received on 27 Dec 2010, accepted on 30 Jan 2011 and first published on 29 Mar 2011


Article type: Paper
DOI: 10.1039/C0NR01023E
Nanoscale, 2011,3, 1717-1723

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    Structural control of gold nanoparticles self-assemblies by layer-by-layer process

    G. Machado, A. F. Feil, P. Migowski, L. Rossi, M. Giovanela, J. D. S. Crespo, L. Miotti, M. A. Sortica, P. L. Grande, M. B. Pereira and R. R. B. Correia, Nanoscale, 2011, 3, 1717
    DOI: 10.1039/C0NR01023E

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