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 t
'/>"/>

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

Page: 1 2

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:4/23/2014)... RICHLAND, Wash. -- Like a hungry diner ripping open ... hydrogen into electricity must tear open a hydrogen molecule. ... catalyst holding onto the two halves of its hydrogen ... into how to make the catalyst work better for ... time scientists have shown precisely where the hydrogen halves ...
(Date:4/23/2014)... French and Spanish . ... CEC released its Conservation Assessment for the Big Bend-Ro ... identifies 29 priority conservation areas in a region straddling ... areas in the states of Texas, Coahuila, and Chihuahua. ... habitats inhabited by rare and endangered plants and animals, ...
(Date:4/23/2014)... (Apr. 23 2014) A team of ... cells (hNSCs) into the brains of nonhuman primates ... and 24 months found that the hNSCs had ... not cause tumors. , The study will be ... Transplantation but is currently freely available on-line ...
Breaking Biology News(10 mins):Halving hydrogen 2Halving hydrogen 3Halving hydrogen 4Conservation priorities released for several protected areas along US-Mexico border 2Conservation priorities released for several protected areas along US-Mexico border 3Study finds long-term survival of human neural stem cells transplanted into primate brain 2
... resistance of potatoes to late blight, their most important ... by the Biotechnology and Biological Sciences Research Council and ... Transactions of the Royal Society B , on 17 ... trial, the potatoes experienced ideal conditions for late blight. ...
... dividing to maintain our body functions. At each division, our ... to be faithfully duplicated to maintain the cell,s memory of ... developed a new technology that has revealed the dynamic events ... The results are published in Nature Cell Biology . ...
... power of regenerative medicine now allows scientists to transform ... pancreas cells and even neurons. However, a method to ... life-saving therapieshas proven far more difficult. But now, scientists ... San Francisco (UCSF), have made an important breakthrough: they ...
Cached Biology News:GM spuds beat blight 2New technology detect cellular memory 2Scientists transform skin cells into functioning liver cells 2Scientists transform skin cells into functioning liver cells 3
(Date:1/15/2014)... laureate Herbert Kroemer famously observed, referring to the ... where layers of different materials meet. In today,s ... of metal oxides are becoming increasingly prominent, with ... superconductors, ferroelectrics and multiferroics. Realizing the vast potential ...
(Date:1/15/2014)... IL (PRWEB) January 15, 2014 Look ... find hard-working items for the lab, from fluid handling ... Guaranteed-in-Stock (GIS)—ready to ship when you order. , ... Peristaltic Pumps , from the L/S® model for precise ...
(Date:1/15/2014)... Canada (PRWEB) January 15, 2014 This ... on nonclinical and clinical safety assessment in biosimilars. , ... path for biosimilar drug development, however the complex nature ... to quality, safety and efficacy extremely challenging. Based on ...
(Date:1/15/2014)... NY (PRWEB) January 15, 2014 The Microcompetition ... a major disease. One of these latent viruses is the ... rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic inflammatory ... theory, a study found that RA patients have high concentrations ...
Breaking Biology Technology:A deeper look at interfaces 2Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3
... Physicists at the University of Pennsylvania have ... measuring the way it conducts electricity on a ... of graphene, the ultra-thin, single-atom thick carbon sheets ... silicon, the current material of choice for transistor ...
... SOUTH SAN FRANCISCO, Calif., July 31 Poniard,Pharmaceuticals, ... focused,on oncology, today announced that the Company will ... Moores UCSD Cancer Center,Translational Oncology Symposium on Friday, ... Ph.D., director of preclinical and translational medicine,for Poniard ...
... HOUSTON and OTTAWA, July 31 /PRNewswire-FirstCall/ - iNutrition, ... Fission Fruit Bars, its,new all natural line of ... http://www.fissionbars.com, and come in three varieties; Fission ... Featuring morsels of,real, delicious fruits, Fission Bars have ...
Cached Biology Technology:Penn scientists demonstrate potential of graphene films as next-generation transistors 2Penn scientists demonstrate potential of graphene films as next-generation transistors 3Poniard Pharmaceuticals to Present at the 4th Annual Moores UCSD Cancer Center Translational Oncology Symposium 2iNutrition Launches New Fission Fruit Nutrition Bars 2
Heavy-duty rim. Especially recommended as a titration flask. Corning5100. capacity 250 mL Special grade: student grade...
This CLS number is a new product number, created to easily match Cornings product number. If showing no availability yet, please order under the old Sigma-Aldrich number (F1676) or contact customer s...
Mouse monoclonal [YPF19] to Yersinia pestis F1 antigen ( Abpromise for all tested applications)....
... a new product number, created to ... showing no availability yet, please order ... or contact customer service for assistance. ... 11.25 6.40 in. Mfr ...
Biology Products: