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Int. J. Mol. Sci. 2013, 14(7), 12953-12969; doi:10.3390/ijms140712953

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

Center for Natural and Human Sciences, Federal University of ABC, 09210-170 Santo André, SP, Brazil
Applied Physics Department, Gleb Wataghin Institute of Physics, State University of Campinas, UNICAMP, C.P. 6165, 13083-970 Campinas, SP, Brazil
Carlos Institute of Physics, University of São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil
Faculty of Science and Technology, São Paulo State University, UNESP, 19060-900 Presidente Prudente, SP, Brazil
Paulista University Center, UNICEP, 13563-470 São Carlos, SP, Brazil
Physics Department, IGCE, São Paulo State University, UNESP, 13506-900 Rio Claro, SP, Brazil
Author to whom correspondence should be addressed.
Received: 15 February 2013 / Revised: 18 May 2013 / Accepted: 8 June 2013 / Published: 24 June 2013
(This article belongs to the Special Issue Self-Assembled Soft Matter Nanostructures at Interfaces)
View Full-Text   |   Download PDF [2329 KB, uploaded 19 June 2014]   |  


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. View Full-Text
Keywords: magnetic nanoparticles; natural rubber latex; carboxymethyl-chitosan; layer-by-layer assembly; molecular dynamics magnetic nanoparticles; natural rubber latex; carboxymethyl-chitosan; layer-by-layer assembly; molecular dynamics

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Miyazaki, C.M.; Riul, A., Jr.; Dos Santos, D.S., Jr.; Ferreira, M.; Constantino, C.J.L.; Pereira-da-Silva, M.A.; Paupitz, R.; Galvão, D.S.; Jr., O.N.O. Bending of Layer-by-Layer Films Driven by an External Magnetic Field. Int. J. Mol. Sci. 2013, 14, 12953-12969.

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