International Journal of Nanomedicine
Open access peer-reviewed scientific and medical journals.
Dove Medical Press is now a member of the Open Access Initiative
An Author's Guide
A guide to help authors get their paper published.
Support Open Access and Dove Press
Promotional Article Monitoring - further details
Favored Author Program
Real benefits for authors, including fast-track processing of papers.
Evaluation of the genotoxicity of cellulose nanofibers
(6275) Total Article Views
Authors: de Lima R, Feitosa LO, Maruyama CR, Barga MA, Yamawaki PC, Vieira IJ, Teixeira EM, Corrêa AC, Mattoso LH, Fraceto LF
Published Date July 2012
Volume 2012:7 Pages 3555 - 3565
|Received:||06 February 2012|
|Accepted:||20 April 2012|
|Published:||11 July 2012|
1Department of Biotechnology, University of Sorocaba, Sorocaba, 2Embrapa Instrumentation (CNPDIA), National Nanotechnology Laboratory for Agriculture (LNNA), São Carlos, 3Department of Environmental Engineering, State University of São Paulo (UNESP), Sorocaba, SP, Brazil
Background: Agricultural products and by products provide the primary materials for a variety of technological applications in diverse industrial sectors. Agro-industrial wastes, such as cotton and curaua fibers, are used to prepare nanofibers for use in thermoplastic films, where they are combined with polymeric matrices, and in biomedical applications such as tissue engineering, amongst other applications. The development of products containing nanofibers offers a promising alternative for the use of agricultural products, adding value to the chains of production. However, the emergence of new nanotechnological products demands that their risks to human health and the environment be evaluated. This has resulted in the creation of the new area of nanotoxicology, which addresses the toxicological aspects of these materials.
Purpose and methods: Contributing to these developments, the present work involved a genotoxicological study of different nanofibers, employing chromosomal aberration and comet assays, as well as cytogenetic and molecular analyses, to obtain preliminary information concerning nanofiber safety. The methodology consisted of exposure of Allium cepa roots, and animal cell cultures (lymphocytes and fibroblasts), to different types of nanofibers. Negative controls, without nanofibers present in the medium, were used for comparison.
Results: The nanofibers induced different responses according to the cell type used. In plant cells, the most genotoxic nanofibers were those derived from green, white, and brown cotton, and curaua, while genotoxicity in animal cells was observed using nanofibers from brown cotton and curaua. An important finding was that ruby cotton nanofibers did not cause any significant DNA breaks in the cell types employed.
Conclusion: This work demonstrates the feasibility of determining the genotoxic potential of nanofibers derived from plant cellulose to obtain information vital both for the future usage of these materials in agribusiness and for an understanding of their environmental impacts.
Keywords: cotton, curaua, nanotoxicology, environmental nanotechnology
Cannotea Citeulike Del.icio.us Facebook LinkedIn Twitter
Readers of this article also read:
- ASNM conference 2014
Join us at the American Society for Nanomedicine Conference in Maryland, March 28th - 30th 2014.
- Impact Factors
- Have an opinion about one of our articles?
We encourage you to write a letter to the editor.
- ISMPP (US) 2014
10th Annual Meeting of ISMPP
April 7-9, 2014
Hyatt Regency Crystal City, Arlington, VA, USA
- Interested in being a peer-reviewer?
Click here to register.
- MLA'14 -
May 16–21, 2014
Authors are welcome to send an abstract or draft manuscript to obtain a view from the Editor about the suitability of their paper. Please email here and include which journal you are interested in submitting your manuscript to. Our Editors will do a quick review of your paper and advise if they believe it is appropriate for submission to their journal.
- Formulation and evaluation of drug-loaded targeted magnetic microspheres for cancer therapy
- Fungus-mediated biological synthesis of gold nanoparticles: potential in detection of liver cancer
- Applications of gold nanoparticles in cancer nanotechnology
- Intracellular heavy metal nanoparticle storage: progressive accumulation within lymph nodes with transformation from chronic inflammation to malignancy