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Journal of Nanomaterials
Volume 2013 (2013), Article ID 437203, 7 pages
http://dx.doi.org/10.1155/2013/437203
Research Article

Layer-by-Layer Films from Wine: An Investigation of an Exponential Growth Process

Grupo de Materiais Nanoestruturados, Campus Universitário do Araguaia, Universidade Federal de Mato Grosso, Barra do Garças, MT, Brazil

Received 17 January 2013; Accepted 5 March 2013

Academic Editor: Shuangxi Xing

Copyright © 2013 Marcio N. Gomes et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We report on the preparation and study of layer-by-layer films of wine alternated with bovine serum albumin (BSA). We found that the exponential and/or linear growth of the films is dependent on the deposition time. Atomic force microscopy images were analysed using scale laws and the fractal dimension, and the results suggested that the BSA/wine film growth regime is determined by sub-bilayer or bilayer growth. Exponential growth was associated with a sub-bilayer deposition regime, whereas linear growth was associated with a bilayer deposition in which a constant amount of material is deposited.