New Rochelle, NY, May 4, 2015--Exposure of a model human colon to metal oxide nanoparticles, at levels that could be present in foods, consumer goods, or treated drinking water, led to multiple, measurable differences in the normal microbial community that inhabits the human gut. The changes observed in microbial metabolism and the gut microenvironment with exposure to nanoparticles could have implications for overall human health, as discussed in an article published in Environmental Engineering Science, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the Environmental Engineering Science website until June 1, 2015.
Alicia Taylor, Ian Marcus, Risa Guysi, and Sharon Walker, University of California, Riverside, individually introduced three different nanoparticles--zinc oxide, cerium dioxide, and titanium dioxide--commonly used in products such as toothpastes, cosmetics, sunscreens, coatings, and paints, into a model of the human colon. The model colon mimics the normal gut environment and contains the microorganisms typically present in the human microbiome.
In the article "Metal Oxide Nanoparticles Induce Minimal Phenotypic Changes in a Model Colon Gut Microbiota" the researchers described changes in both specific characteristics of the microbial community and of the gut microenvironment after exposure to the nanoparticles.
"This article points to some potential consequences of using nanoparticles in common consumer products," says Domenico Grasso, PhD, Editor-in-Chief of Environmental Engineering Science and Provost, University of Delaware.
About the Journal
Environmental Engineering Science, the official journal of the Association of Environmental Engineering and Science Professors, is an authoritative peer-reviewed journal published monthly online with Open Access options. Publishing state-of-the-art studies of innovative solutions to problems in air, water, and land contamination and waste disposal, the Journal features applications of environmental engineering and scientific discoveries, policy issues, environmental economics, and sustainable development including climate change, complex and adaptive systems, contaminant fate and transport, environmental risk assessment and management, green technologies, industrial ecology, environmental policy, and energy and the environment. Tables of content and a sample issue may be viewed on the Environmental Engineering Science website.
About the Publisher
Mary Ann Liebert, Inc., publishers is a privately held, fully integrated media company known for establishing authoritative peer-reviewed journals in many promising areas of science and biomedical research, including Industrial Biotechnology, Sustainability: The Journal of Record, and Environmental Justice. Its biotechnology trade magazine, Genetic Engineering & Biotechnology News (GEN), was the first in its field and is today the industry's most widely read publication worldwide. A complete list of the firm's 80 journals, newsmagazines, and books is available on the Mary Ann Liebert, Inc., publishers website.
About the Association
The Association of Environmental Engineering and Science Professors (AEESP) is made up of professors in academic programs throughout the world who provide education in the sciences and technologies of environmental protection. The mission of AEESP is to assist its members in the development and dissemination of knowledge in environmental engineering and science. AEESP seeks to strengthen and advance the discipline of environmental science and engineering by providing leadership, promoting cooperation amongst academics and others within and outside the discipline, and serving as a liaison between its membership and other professional societies, governmental agencies, industry and nonprofit organizations.
Environmental Engineering Science