A reimagined future for sustainable nanomaterials

Researchers propose a new method for nanomaterial selection that incorporates environmental and functional performance, as well as cost. Credit: Steve Geringer

Engineered nanomaterials hold great promise for medicine, electronics, water treatment and other fields. But when designed without critical information about environmental impacts at the start of the process, the materials' long-term effects could undermine those advances. With a Yale-led project, a team of researchers hopes to change that.

In a study published in Nature Nanotechnology, Yale researchers outline a strategy to give materials designers the tools they need to make the necessary assessments efficiently and at the beginning of the design process.

Engineers traditionally focus on the function and cost of their products. Without the information to consider long-term environmental impacts, though, it is difficult to predict adverse effects. That lack of information means that unintended consequences often go unnoticed until long after the product has been commercialized. This can lead to hastily replacing the material with another that proves to have equally bad, or even worse, effects. Having materials property information at the start of the design process could change that pattern.

“As a researcher, if I have limited resources for research and development, I don't want to spend it on something that's not going to be viable due to its effects on human health,” said Julie Zimmerman, professor of chemical & environmental engineering and co-senior author of the study. “I want to know now, before I develop that product.”

To that end, the researchers have developed a database that serves as a screening tool for environmentally sustainable material selection. It's a chart that lists nanomaterials and assesses each for properties such as size, shape, and such performance characteristics as toxicity and antimicrobial activity. Mark Falinski, a PhD student and lead author of the study, said this information would allow researchers to weigh the different effects of the material before actually developing it.

“For instance, if I want to make a good antimicrobial silver nanoparticle and I want it to require the least amount of energy possible to make it, I could look at this materials selection strategy,” he said.

The database is also designed to allow researchers to enter their data and make the chart more robust. The researchers say the project is a call to action to both environmental and materials researchers to develop the data needed to aid sustainable design choices.

“While materials selection is a well-established process, this framework offers two important contributions relevant to designing tomorrow's products,” said Leanne Gilbertson, assistant professor of civil and environmental engineering at the University of Pittsburgh Swanson School of Engineering. “It includes engineered nanomaterials alongside conventional alternatives, as well as providing human health and environmental metrics for all materials.”

Desiree Plata, John J. Lee Assistant Professor of Chemical and Environmental Engineering and co-senior author, said they want to give engineers the means to avoid unintended consequences when creating materials.

“I think engineers of all categories are hungry for this type of information,” she said. “They want to build materials that solve major crises of our time, like access to food and water and sustainable energy. The problem is they have no way to assess that sustainability in a quick and easy fashion. The article published today seeks to overcome that challenge and pave the way for sustainable nanotechnologies.”

###

The study's authors also include Shauhrat S. Chopra and Thomas L. Theis of the University of Illinois at Chicago.

Yale University news release; reposted with permission. “A framework for sustainable nanomaterial selection and design based on performance, hazard, and economic considerations.” doi:10.1038/s41565-018-0120-4

Media Contact

William Weir, Yale University
william.weir@yale.edu
203-432-0105

http://www.pitt.edu 

Alle Nachrichten aus der Kategorie: Materials Sciences

Materials management deals with the research, development, manufacturing and processing of raw and industrial materials. Key aspects here are biological and medical issues, which play an increasingly important role in this field.

innovations-report offers in-depth articles related to the development and application of materials and the structure and properties of new materials.

Zurück zur Startseite

Kommentare (0)

Schreib Kommentar

Neueste Beiträge

Scientists achieve higher precision weak force measurement between protons, neutrons

Through a one-of-a-kind experiment at the Department of Energy’s Oak Ridge National Laboratory, nuclear physicists have precisely measured the weak interaction between protons and neutrons. The result quantifies the weak…

High-performance single-atom catalysts for high-temperature fuel cells

Individual Pt atoms participate in catalytic reaction to faciitate the electrode process by up to 10 times. Single-atom Pt catalysts are stable at 700 degrees Celsius and expected to stimulate…

New method allows precise gene control by light

A novel optical switch makes it possible to precisely control the lifespan of genetic “copies”. These are used by the cell as building instructions for the production of proteins. The…

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close