Navigation Links
Tiny particles could solve billion-dollar problem

of the major advantages of using palladium catalysts to break down TCE is that palladium converts TCE directly into non-toxic ethane. By contrast, breaking down TCE with more common catalysts, like iron, produces intermediate chemicals, like vinyl chloride, that are more toxic than TCE.

In the CBEN experiments, Wong and collaborators compared the effectiveness of four varieties of palladium catalysts: bulk palladium, palladium powder on an aluminum oxide support base, pure palladium nanoparticles and a hybrid nanoparticle developed by Wong that consists of a gold nanoparticle covered with a thin coat of palladium atoms.

As metal particles get progressively smaller, a higher percentage of the atoms in the particle are found on the surface of the particle instead of being locked away inside the metal where they cannot interact with other chemicals. For example, in the bulk palladium, less than 4 percent of the palladium atoms were on surface of the particle. Pure palladium nanoparticles had 24 percent of the metal on the surface. In the gold-palladium nanoparticles, 100 percent of the palladium atoms are accessible for reaction.

"We've documented the efficiency of these catalysts in breaking down TCE, and the next step is engineering a system that will allow us to get at the polluted groundwater," said Joe Hughes, professor of civil and environmental engineering at Georgia Institute of Technology and a co-leader of CBEN's environmental research programs. "The scale of TCE contamination is enormous, so any new scheme for TCE remediation has got to clean large volumes of water very quickly for a just a few pennies."

Hughes, Wong and their collaborators hope to develop a device that would include a cylindrical pump containing a catalytic membrane of the gold-palladium nanoparticles. The device would be placed down existing wells where it would pump water through continuously, breaking TCE into non-toxic components.

Cost is the pri
'"/>

Source:Rice University


Page: 1 2 3

Related biology news :

1. DNA Molecules Used To Assemble Nanoparticles
2. Imaging Lymph Nodes with Nanoparticles
3. Probing The Promise And Perils Of Nanoparticles
4. Probing the promise and perils of nanoparticles
5. Nanoparticles offer new hope for detection and treatment
6. Novel gene-silencing nanoparticles shown to inhibit Ewings sarcoma
7. Basis for DNA ejection from single phage particles
8. Using nanoparticles, in vivo gene therapy activates brain stem cells
9. Breakthrough: Scientists create worlds tiniest organic particles
10. Nanoparticles carry cancer-killing drugs into tumor cells
11. NJIT study shows nanoparticles could damage plant life
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Tiny particles could solve billion dollar problem

(Date:7/22/2014)... a cost-effectiveness analysis of commercial diet programs and pills, ... the best value for the money. The Jenny Craig ... the most expensive option tested, according to researchers at ... The findings, published in the June issue of the ... health and weight-loss benefits per dollar spent as insurance ...
(Date:7/22/2014)... adapted to New York City,s human behaviour, allowing them ... their fellow squirrels in the woods. , Dr Bill ... Agriculture, led the study that proved eastern grey squirrels ... and prevent unnecessary responses when humans acted in a ... , "As we rapidly increase the spread of urbanisation ...
(Date:7/22/2014)... Open a child,s lunch box and you,re likely to find ... guidelines. Those are the findings of a study conducted by ... at Tufts University and in the Department of Public Health ... The findings are published online ahead of print in the ... , Led by senior author Jeanne Goldberg, Ph.D., R.D., ...
Breaking Biology News(10 mins):Study compares cost-effectiveness of weight-loss programs and drugs 2Study compares cost-effectiveness of weight-loss programs and drugs 3New York squirrels are nuts about city life 2Room for improvement in elementary school children's lunches and snacks from home 2
... that spots tooth decay almost as soon as it,s begun ... Patrick Walter in SCI,s Chemistry & Industry (C&I) ... phobias and puts thousands of people off visiting their dentist ... available in dental surgeries in five years from now, is ...
... the Institute for Research in Biomedicine (IRB Barcelona), in ... of the CSIC, reveal a mechanism that controls the ... adhesion. This same mechanism may be defective in diseases ... lose their adhesion to neighbouring cells and migrate through ...
... to Americans. From the comedic portrayal of "Mr. Limpet" ... fish can talk, laugh and tell jokes--at least on ... verbally communicate? Researchers say, "Yes," in a paper published ... Science . Further, the findings put human speech--and social ...
Cached Biology News:End in sight for the dreaded dentist drill 2Discovery of a mechanism that regulates cell movement 2
(Date:7/22/2014)... 2014 The Board of Directors of BD (Becton, ... a quarterly dividend of 54.5 cents per common share payable ... 9, 2014. The indicated annual dividend rate is $2.18 per ... a leading medical technology company that partners with customers and ... evolving health needs. Our innovative solutions are focused on improving ...
(Date:7/22/2014)...   BioTE Medical , a leading provider ... pellets, today announced the addition of Dr. ... Rouzier is joining the BioTE Medical Advisory Board ... Rouzier was residency trained in Family Medicine and ... certified emergency physician still practicing at a large ...
(Date:7/22/2014)... Chicago, IL (PRWEB) July 22, 2014 ... will a clear and concise visual representation of history, ... Mr. Novak was always regaled by family history stories ... historic location as the "old country." Pictures and 8mm ... and undiscovered side of the family, and Steve ordered ...
(Date:7/22/2014)... SHENZHEN , Cina, 22 luglio 2014 /PRNewswire/ ... filiale di BGI, la maggiore organizzazione di genomica del ... servizio di sequenziamento dell,intero esoma umano con base la ... Complete Genomics, molto apprezzata nel settore per essere ... il 99.999% di precisione e una rilevazione altamente sensibile ...
Breaking Biology Technology:Dr. Neal Rouzier Joins BioTE Medical 2Dr. Neal Rouzier Joins BioTE Medical 3DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 2DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 3DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 4BGI Tech lancia un servizio di sequenziamento dell'intero esoma umano sulla piattaforma avanzata di Complete Genomics 2
... The biggest fear for a doctor may be losing a patient, ... of a hospital, there are hundreds of supplies to keep track ... that often leaves doctors rooting around in the supply closet for ... hunt for a defibrillator. , ,According to Barry Chaiken, associate chief ...
... Alto, Calif. - Wisconsin Governor Jim Doyle ... the subject wasn't the controversial stem cell patent of the ... coalition building on stem cell research, Doyle went after his ... on federal funding for human embryonic stem cell research. , ...
... week's flurry of announcements from hard disk drive stalwart Seagate. After ... than 20 years - and disk storage is, as everyone knows, ... news that someone has packed another gigabyte of magnetic bits onto ... you didn't pay much attention to - or even see - ...
Cached Biology Technology:RFID system aids hospital in tracking assets 2RFID system aids hospital in tracking assets 3Doyle, Green exchange stem cell salvos 2Doyle, Green exchange stem cell salvos 3Doyle, Green exchange stem cell salvos 4Digital Media Superstar: Seagate? 2Digital Media Superstar: Seagate? 3
Application: for RNase- decontamination , Registered Trademark of Ambion. ,Special grade: for molecular biology Density: 1.00 g/mL (20 C) Suitab tst: RNase decontamination in accordance...
... A cleaning agent for removing ... countertops, and pipettors. It ... RNase contamination from microcentrifuge tubes ... ,RNase Zap (R) ...
Mol wt: average mol wt12,360.96 Da by calculation...
... a series of media originally developed at the ... for the large scale propagation of cells from ... used for the growth and maintenance of cell ... viruses in these cell lines. One of the ...
Biology Products: