Navigation Links
Plasma treatment zaps viruses before they can attack cells
Date:12/16/2011

Adenoviruses can cause respiratory, eye, and intestinal tract infections, and, like other viruses, must hijack the cellular machinery of infected organisms in order to produce proteins and their own viral spawn. Now an international research team made up of scientists from Chinese and Australian universities has found a way to disrupt the hijacking process by using plasma to damage the viruses in the laboratory environment, before they come into contact with host cells.

The researchers prepared solutions containing adenoviruses and then treated the samples with a low-temperature plasma created by applying a voltage to a gaseous mixture in a syringe. The strong electric field energized electrons that collided with molecules in the gas, generating charged particles and highly reactive species such as oxygen atoms that likely etched away the protein shell of the viruses and damaged or destroyed the viral DNA. When the virus solutions were later added to colonies of embryonic kidney cells, the plasma-treated samples showed much less viral activity, as measured by the amount of a florescent virus protein the infected kidney cells produced. If the virus solution was covered during treatment to maximize plasma-virus interactions, more than 99 percent of the viruses could be deactivated in eight minutes. The technique is described in a paper accepted for publication in the AIP's journal Applied Physics Letters.

Adenoviruses pose life-threatening risks to patients undergoing stem-cell therapy, so the anti-viral plasma treatment may help pave the way to safer therapies, the researchers write. Because plasma jets have multiple biomedical applications, the team is also developing a portable device that generates plasma by using a 12 V battery to decompose and ionize air, says Dr. XinPei Lu at the HuaZhong University of Science and Technology in China and leader of the team. The device might be used in rural areas and battlefields, according to Lu
'/>"/>

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. How Toxoplasma gondii gets noticed
2. Plasma produces KO cocktail for MRSA
3. Modeling Toxoplasma focus of workshop
4. Toxoplasma gondii spreads in the habitat of the Iberian lynx
5. Atmospheric pressure plasma jet from a grounded electrode
6. Grant advances quark-gluon plasma studies

7. Scripps Research scientists redefine the role of plasma cells in the immune system
8. MIT researchers study the danger of toxoplasma parasites
9. RevaTen platelet-rich plasma shows promise as potential treatment for heart attacks
10. Plasma in bags
11. Ionized plasmas as cheap sterilizers for developing world
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... gene for another in a line of living stem ... within this decade. As with any new technology, it ... genes in humans, for example--as well as questions and ... those concerns to rest: using gene-editing techniques on stem ... the cells. The new results were published July 3 ...
(Date:7/9/2014)... the geographic ranges in which animals can be found, ... parasites. Does an increased range for a host mean ... necessarily, says a team of UC Santa Barbara scientists, ... study published in the Journal of Biogeography , ... the opposite may happen: Hosts may actually lose their ...
(Date:7/9/2014)... Emerging fungal pathogens pose a greater threat ... population declines of amphibians, bats, corals, bees and ... Florida published in the prestigious journal Nature ... immunological resistance to a deadly chytrid fungus implicated ... resistance is important because it is the basis ...
Breaking Biology News(10 mins):No extra mutations in modified stem cells, study finds 2No extra mutations in modified stem cells, study finds 3Not at home on the range 2Not at home on the range 3Not at home on the range 4USF study: Amphibians can acquire resistance to deadly fungus 2
... so many organisms that have different traits yet to ... of genetic information from organisms rapidly evolving, the "forest" ... of each individual case and detail. A review ... David Wake, Marvalee Wake and Chelsea Specht, all currently ...
... ANAHEIM, Calif., Feb. 24, 2011 For a week ... Los Angeles Angels baseball, and other attractions becomes the world ... gather here for the 241st National Meeting & Exposition of ... members, ACS is the world,s largest scientific society, and the ...
... of Life Sciences has opened up a new path to produce ... with drought resistance, and ensure global food security. The research ... protein that appears to be the principal gateway for water intake ... as it appears much of the research to date was focussed ...
Cached Biology News:American Chemical Society National Meeting & Exposition, March 27-31, Anaheim, Calif. 2New path to water efficient seeds opens as TIP pips PIP as water gatekeeper 2
(Date:1/14/2014)... Ontario , Jan. 14, 2014   Kinaxis ®, provider ... SCM ) and sales and operations planning ( S&OP ) ... Biomanufacturing Summit , which will be held at the ... the conference, join Kinaxis customer Elisabeth Kaszas , Director ...
(Date:1/14/2014)... Kerr Corporation, a leading manufacturer of innovative dental products, has ... arch impressions on its dental blog. , Titled ... serves up a list of tips to help dentists best ... David Little as he crafts a porcelain crown using Kerr’s ...
(Date:1/14/2014)... Independent publisher Bitingduck Press, with offices ... has big ideas for 2014 in production and sales ... to produce high-quality, low-cost, DRM-free ebooks and to use ... , The first major development will be bookstore sales ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Holloway America ... database of material test reports (MTRs) for all pressure ... Documenting test results is particularly important for equipment that ... The MTR Library features search functionality that allows authorized ...
Breaking Biology Technology:Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2Bitingduck Press Looks Forward to 2014 With Multimedia E-books 2Pressure Vessel Design and Fabrication Company Builds Database for Material Test Reports 2Pressure Vessel Design and Fabrication Company Builds Database for Material Test Reports 3
... microneedles has proven just as effective at preventing ... A team of researchers at Emory University and ... microneedle skin patch method of delivering flu vaccine ... because of decreased pain, increased convenience, lower cost ...
... Encorium Group, Inc. (Nasdaq: ... organization (CRO) that provides design, development, and management capabilities ... the world,s leading pharmaceutical companies, today announced the signing ... of both new business contracts and repeat business to ...
... Mass., April 27 ETEX Corporation, a leading ... of 1cc and 2.5cc sizes of Beta-bsm(TM) Injectable ... existing 5cc and 10cc sizes. Both products are ... calcium phosphate technology. (Logo: ...
Cached Biology Technology:Flu vaccine given in microneedle skin patches proves effective in mice 2Flu vaccine given in microneedle skin patches proves effective in mice 3Encorium Group Signs Approximately $2.0 Million of New Business Contracts 2Encorium Group Signs Approximately $2.0 Million of New Business Contracts 3ETEX Corporation Announces FDA Clearance of Small Size Beta-bsm(TM) Injectable Paste and Gamma-bsm(TM) Moldable Putty 2
... temperature-controlled microwave oven for use ... Retrieval of formalin-fixed, paraffin-embedded tissue ... use, high throughput (96 slides ... When used in conjunction with ...
... reagents and supplies, for 10 chips, ... to perform protein analysis with 10 ... system. Supplied are 3 x 520 ... stain, 60 microliters Pro260 ladder (10-260 ...
...
... in the submicron range are part of ... and control of particle size is important ... can reliably detect the component populations in ... Particle Size Analyzer uses Photon Correlation Spectroscopy ...
Biology Products: