Antimicrobial Effect of Coated Leather Based on Silver Nanoparticles and Nanocomposites: Synthesis, Characterisation and Microbiological EvaluationIsabel Maestre-López M, Federico Payà-Nohales J, Natalia Cuesta-Garrote, Francisca Arán-Ais, Miguel Ángel Martínez-Sánchez, César Orgilés-Barceló and Marcelo Bertazzo*
INESCOP, Footwear Technological Institute, 03600 Elda (Alicante), Spain
- Corresponding Author:
- Marcelo Bertazzo
INESCOP, Footwear Technological Institute
03600 Elda (Alicante), Spain
Tel: +34 965 39 52 13
Fax: +34 965 38 10 45
E-mail: [email protected]
Received date: December 29, 2014; Accepted date: January 30, 2015; Published date: February 05, 2015
Citation: Isabel Maestre-López M, Federico Payà-Nohales J, Cuesta-Garrote N, Arán-Ais F, Martínez-Sánchez MÁ, et al. (2015) Antimicrobial Effect of Coated Leather Based on Silver Nanoparticles and Nanocomposites: Synthesis, Characterisation and Microbiological Evaluation. J Biotechnol Biomater 5:171. doi:10.4172/2155-952X.1000171
Copyright: © 2015 Isabel Maestre-López M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
This paper describes the assessment of the antimicrobial effect of leathers employed for footwear production, which were obtained by different tanning techniques and treated with silver nanoparticles emulsions synthesised from different reducing agents (sodium borohydride, gelatine/glucose and Aloe vera extract), as well as the assessment of the silica nancomposites obtained from said nanoparticles. After the characterisation of silver nanoparticles and nanocomposites, the emulsions were applied onto different leather samples. Scanning Electron Microscopy was used to verify that silver nanoparticles were deposited on the collagen fibres surface and inside the collagen matrix of leather. The antibacterial effect of different silver nanoparticles and silver nanocomposites was assessed on gram positive and gram negative bacterial strains in agar diffusion assays and turbidimetric tests. The results obtained proved a powerful antibacterial effect on all bacterial strains tested of both silver nanoparticles and silica nanocomposites. This allows us to consider the incorporation of these nanocomposites into leather as an alternative to other commercially available products in order to obtain leather with antimicrobial properties that confer better functionality and added value.