Navigation Links
Virus killer gets supercharged
Date:1/11/2011

use it's considered the most polluted river in the world, with the highest viral content," he said. "Even at that level of viral contamination, we're getting complete destruction of the viruses in water that matches the level of pollution in the Yangtze."

Using a smaller amount of treated P25 takes longer but works just as well, he said. "Either way, it's green and it's cheap."

The team started modifying titanium dioxide two years ago. Li, an assistant professor in civil and environmental engineering whose specialties include water and wastewater treatment, approached Barron to help search for new photocatalytic nanomaterials to disinfect drinking water.

The revelation came when students in Barron's lab heated titanium dioxide, but it wasn't quite the classic "aha!" moment. Graduate student and co-author Michael Liga saw the data showing greatly enhanced performance and asked fellow graduate student Huma Jafry what she had done. Jafry, the paper's first author, said, "I didn't do anything," Barron recalled.

When Barron questioned Jafry, who has since earned her doctorate, he discovered she used silicone grease to seal the vessel of P25 before heating it. Subsequent testing with nonsilicone grease revealed no change in P25's properties, whether the sample was heated or not. Remarkably, Barron said, further work with varying combinations of titanium dioxide and silicone dioxide found the balance between the two at the time of the discovery was nearly spot-on for maximum impact.

Barron said binding just the right amount of silica to P25 creates an effect at the molecular level called band bending. "Because the silicone-oxygen bond is very strong, you can think of it as a dielectric," he said. "If you put a dielectric next to a semiconductor, you bend the conduction and valence bands. And therefore, you shift the absorption of the ultraviolet (used to activate the catalyst)."

Bending the bands creates a path for e
'/>"/>

Contact: David Ruth
druth@rice.edu
713-348-6327
Rice University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Deadly rugby virus spreads in sumo wrestlers
2. Structures of important plant viruses determined
3. Research about plant viruses could lead to new ways to improve crop yields
4. World leaders in infectious diseases convene to discuss emerging global viruses
5. Study: Bird diversity lessens human exposure to West Nile Virus
6. Scripps research team solves structure of beneficial virus
7. Tick-borne encephalitis virus reveals its access code
8. Protein tubules free avian flu virus from immune recognition
9. Forced evolution: Can we mutate viruses to death?
10. Nature Medicine study shows Peregrines bavituximab can cure lethal virus infections
11. Researchers recreate SARS virus, open door for potential defenses against future strains
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2014)... Center in Greenbelt, Md., is home to hundreds ... At Goddard, some of the most cutting-edge Earth ... of that cutting-edge innovation has earned a Goddard ... Society for Anthropology and Geography awards the Vega ... has shown excellence in the fields of physical ...
(Date:4/15/2014)... UC San Diego have succeeded in visualizing the ... for growth and resistance to drought. The achievement ... determine how the hormone helps plants respond to ... continuing increase in the atmosphere,s carbon dioxide, or ... in the April 15 issue of the scientific ...
(Date:4/15/2014)... Zealand,s pastoral landscapes are some of the loveliest in ... Many of the country,s pasture soils have become enriched ... which is then eaten by the cattle and sheep ... New Zealand; cadmium-enriched soils being reported worldwide. , The ... levels in meat and dairy products, human health and ...
Breaking Biology News(10 mins):Goddard scientist receives Vega Medal from King of Sweden 2Biologists develop nanosensors to visualize movements and distribution of plant hormone 2
... step in making artificial life forms from scratch. Using ... membranes, the structural envelopes that contain and support the ... of chemistry at the University of California, San Diego, ... report their success in the Journal of the ...
... leading causes of death. And yet, despite decades ... for most cancers. In addition, disappointing results from ... need for alternative methods. Mathematical modeling ... tumors in terms of differential equations and stochastic ...
... the College of Agricultural Sciences, The Pennsylvania State University, State ... Abstract Submissions: 1 March 2012 -- The Society for ... abstract for presentation at the 45th SSR Annual Meeting to ... Links to the following are to be found on the ...
Cached Biology News:Chemists synthesize artificial cell membrane 2Aiding cancer therapy by mathematically modeling tumor-immune interactions 2Aiding cancer therapy by mathematically modeling tumor-immune interactions 3
(Date:1/15/2014)... January 15, 2014 This webinar ... on nonclinical and clinical safety assessment in biosimilars. ... guide a path for biosimilar drug development, however ... of biosimilarity with regards to quality, safety and ... of biosimilar drug development and registration, development strategies ...
(Date:1/15/2014)... NC (PRWEB) January 15, 2014 ... an enhancement to its Online Web Portal for Life ... now have the ability to specify the subject matter ... nearly 50 life science sub-domains. This will help reduce ... and scientific fields, and decrease the likelihood of error. ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 ... – 11 p.m. , Location: Warrington Country Club, 1360 ... Hepatitis B Foundation, the only national nonprofit organization solely ... improving the quality of life for those affected worldwide, ... 11 at Warrington Country Club in Warrington, Pa. ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... initiated coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua ... and marketing proprietary products to serve the wound ... , In late 2012, Alliqua was restructured ... launched the company’s new strategy to become a ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... , , ... innovative,cancer therapy. , , ... Dr.Zhaohui Peng is the chairman,chief executive officer, and founder of ... Road, Shenzhen Hi-Tech Industrial Park, Shenzhen, China, , ...
... By Julia Cino, PhD , ... , Over the last ... and place genes into a variety of organisms that are quite different ... organisms is to produce,proteins. Since many proteins are of immense commercial value, ...
... for Culturing Mammalian, Insect, Plant, Bacteria, and Yeast Cells , ... Vyas, Product Manager , New ... 1-800-631-5417 or 1-732-287-1200; bioinfo@nbsc.com, www.nbsc.com/bi5.htm ... T-flasks, or roller bottles have,become the lab standard in most fermentation and cell,culture research ...
Cached Biology Technology:The Genesis of Gendicine: The Story Behind the First Gene Therapy 2The Genesis of Gendicine: The Story Behind the First Gene Therapy 3The Genesis of Gendicine: The Story Behind the First Gene Therapy 4The Genesis of Gendicine: The Story Behind the First Gene Therapy 5The Genesis of Gendicine: The Story Behind the First Gene Therapy 6The Genesis of Gendicine: The Story Behind the First Gene Therapy 7The Genesis of Gendicine: The Story Behind the First Gene Therapy 8The Genesis of Gendicine: The Story Behind the First Gene Therapy 9The Genesis of Gendicine: The Story Behind the First Gene Therapy 10The Genesis of Gendicine: The Story Behind the First Gene Therapy 11The Genesis of Gendicine: The Story Behind the First Gene Therapy 12The Genesis of Gendicine: The Story Behind the First Gene Therapy 13The Genesis of Gendicine: The Story Behind the First Gene Therapy 14The Genesis of Gendicine: The Story Behind the First Gene Therapy 15High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 2High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 3High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 4High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 5High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 6High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 7High Yield Protein Production from Pichia pastoris Yeast: A Protocol for Benchtop Fermentation 8An Easy-to-Use Research Fermentor/Bioreactor 2An Easy-to-Use Research Fermentor/Bioreactor 3
... Fixed clamp trays and universal ... Magnetic drive Shaking ... 25 mm amplitude ... to 2000 ml, including Fernbach flasks ...
... fluorescent microscopy-based imaging system that accurately counts ... calculates cell viability, in a single test. ... variability associated with the subjective interpretation of ... EasyCount ViaSure Kit, up to six tests ...
... than western blotting. Get results sooner and save ... gel detection. Eliminates the need for a membrane ... All reagents are ready-to-use. No reagents to prepare ... 2 reagents required. Guarantees a simple to perform, ...
... The CHEF-DR III variable angle system, 220-240 ... greater than 6 Mb DNA fragments by pulsed ... electrophoresis cell, power module, variable-speed pump, 14 x ... comb holder, 15-well, 1.5 mm thick comb, screened ...
Biology Products: