Bending of Layer-by-Layer Films Driven by an External Magnetic Field

Miyazaki, Celina M.; Riul, Antonio; Dos Santos, David S.; Ferreira, Mariselma; Constantino, Carlos J. L. [UNESP]; Pereira-da-Silva, Marcelo A.; Paupitz, Ricardo [UNESP]; Galvao, Douglas S.; Oliveira, Osvaldo N.

Bending of Layer-by-Layer Films Driven by an External Magnetic Field

Arquivos

WOS000322171700003.pdf (2.27 MB)

Data

2013-07-01

Autores

Constantino, Carlos J. L.

Pereira-da-Silva, Marcelo A.

Paupitz, Ricardo

Galvao, Douglas S.

Oliveira, Osvaldo N.

Editor

Mdpi Ag

Tipo

Artigo

Direito de acesso

Acesso aberto

Resumo

We report on optimized architectures containing layer-by-layer (LbL) films of natural rubber latex (NRL), carboxymethyl-chitosan (CMC) and magnetite (Fe3O4) nanoparticles (MNPs) deposited on flexible substrates, which could be easily bent by an external magnetic field. The mechanical response depended on the number of deposited layers and was explained semi-quantitatively with a fully atomistic model, where the LbL film was represented as superposing layers of hexagonal graphene-like atomic arrangements deposited on a stiffer substrate. The bending with no direct current or voltage being applied to a supramolecular structure containing biocompatible and antimicrobial materials represents a proof-of-principle experiment that is promising for tissue engineering applications in biomedicine.