Navigation Links
Making sure the wonder materials don't become the wonder pollutant
Date:4/8/2008

Carbon nanotubes are 10,000 times thinner than a human hair, yet stronger than steel and more durable than diamonds. They conduct heat and electricity with efficiency that rivals copper wires and silicon chips, with possible uses in everything from concrete and clothes to bicycle parts and electronics. The have been hailed as the next wonder material for what could become a multi-billion dollar manufacturing industry in the 21st century.

But as useful as nanotubes may be, the process of making them may have unintentional and potentially harmful impacts on the environment. MIT/WHOI graduate student Desire Plata and her mentorschemists Phil Gschwend of the Massachusetts Institute of Technology and Chris Reddy of the Woods Hole Oceanographic Institutionrecently analyzed ten commercially made carbon nanotubes to identify the chemical byproducts of the manufacturing process and to help track them in the environment.

Plata found that the ten different carbon nanotubes had vastly different compositions; most previous toxicity studies have generally assumed that all nanotubes are the same. This diversity of chemical signatures will make it harder to trace the impacts of carbon nanotubes in the environment

In previous work (first presented last fall), Plata and colleagues found that the process of nanotube manufacturing produced emissions of at least 15 aromatic hydrocarbons, including four different kinds of toxic polycyclic aromatic hydrocarbons (PAHs) similar to those found in cigarette smoke and automobile tailpipe emissions. They also found that the process was largely inefficient: much of the raw carbon went unconsumed and was vented into the atmosphere.

The new research by Plata et al was published April 3 on the web site of the journal Nanotechnology. In the next phase of Platas work, she will collect real-time data from a European nanotube manufacturing facility that is poised to let her set up the same monitors she used in the MIT lab.

It is the indiscriminant use of poorly understood chemicals that causes environmental and public health costs, Plata said. We want to work proactively with the carbon nanotube industry to avoid repeating environmental mistakes of the past. Instead of reacting to problems, we hope to preclude them altogether.

Plata was honored in February for her nanotube work by the Division of Environmental Chemistry of the American Chemical Society, which selected her as a winner of one of its 2008 Graduate Student Paper Awards.


'/>"/>

Contact: Media Relations
media@whoi.edu
508-289-3340
Woods Hole Oceanographic Institution
Source:Eurekalert

Related biology news :

1. LSU scientist finds evidence of rain-making bacteria
2. Is that sea otter stealing your lunch -- or making it?
3. Making sense of antisense microRNAs
4. GBIF making the search for biodiversity research resources easier
5. Another type of nanotube, a how-to guide to making bamboo-structured carbon nanotubes
6. Coal and black liquor can produce energy from papermaking
7. Lensless camera uses X-rays to view nanoscale materials and biological specimens
8. Sea cliff erosion, hemp construction materials and more at UCSD Engineering Conference
9. Purdue researchers obtain a snapshot clarifying how materials enter cells
10. Scientists discover record-breaking hydrogen storage materials for use in fuel cells
11. Keck Foundation funds study of biological interactions with nanomaterials
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2017)... Research and Markets has announced the addition of the ... Forecast to 2025" report to their offering. ... The Global Vehicle Anti-Theft System ... over the next decade to reach approximately $14.21 billion by 2025. ... forecasts for all the given segments on global as well as ...
(Date:3/20/2017)... , March 20, 2017 PMD Healthcare ... personal spirometer and Wellness Management System (WMS), a remote, ... Founded in 2010, PMD Healthcare is a Medical Device, ... a mission dedicated to creating innovative solutions that empower ... With that intent focus, PMD developed the first ever ...
(Date:3/7/2017)... BRIGHTON, England , March 7, 2017 Brandwatch ... been chosen by The Prince,s Trust to uncover insights ... insights across The Trust. The UK,s leading youth charity ... track social campaign results and get a better understanding of the ... ...
Breaking Biology News(10 mins):
(Date:3/24/2017)... Biotech Ltd. ("Sinovac" or the "Company") (NASDAQ: SVA), a leading provider ... that its board of directors has amended its shareholder rights plan. The ... 2017 to March 27, 2018. The amendment was not in response to ... ... Ltd. is a China -based biopharmaceutical company that ...
(Date:3/23/2017)... ... ... to announce it has become the premiere team-building cooking event company in San Diego. ... as Illumina, HP and Qualcomm, and is ranked #1 in its category on Trip Advisor. ... new team building format, a way for teams to not only interact with one another ...
(Date:3/23/2017)... MENLO PARK, Calif., March 23, 2017  BioPharmX ... developing products for the dermatology market, today reported ... Jan. 31, 2017, and will provide an update ... from the year. "We are pleased ... productive year for BioPharmX," said President Anja Krammer. ...
(Date:3/23/2017)... Colo. , March 23, 2017  Agriculture technology ... Series A financing and note conversion to commercialize its ... Planet is focused on developing products that are simultaneously ... $30 million in the last 18 months. This latest ... North Bridge Venture Partners. The company,s ...
Breaking Biology Technology: