Navigation Links
Atmospheric pressure plasma jet from a grounded electrode
Date:8/24/2010

This release is also available in Chinese on EurekAlert! Chinese.

College Park, MD (August 24, 2010) -- Because they are portable and easy to operate at ambient temperatures, cold atmospheric pressure plasma jets (APPJs) should find innovative applications in biomedicine, materials science and fabrication industries. Research reported in the Journal of Applied Physics investigates an APPJ that extends from the ground electrode of a circuit.

The researchers studied the mechanism of the jet, which differs from conventional APPJ applications that form at the active electrode.

"The ground electrode jets originate from a charge overflow and are powered by the dielectric barrier discharge between the electrodes," say authors Nan Jiang and Zexian Cao of the Beijing National Laboratory for Condensed Matters in China. "They are therefore isolated from electrical breakdown when the jet approaches an object."

This separation between the jet and active electrode, along with the ability to form a jet at lower voltages than conventional APPJs increases operator safety and opens up biomedical applications that would be dangerous otherwise.

By using narrow, transparent ground electrodes, the researchers found that the overflow jet begins to develop at the inner edge of the ground electrode, and propagates forward in the dielectric via surface microdischarge which, to the surprise of the authors, causes backstreaming of charges. The output characteristics of the jet can be tuned by adjusting the conditions of dielectric barrier discharge between the electrodes and by varying the width of the ground electrode.

"This allows a flexible, miniaturized design since it is the ground electrode that sits at the front part of the device," says Cao.
'/>"/>

Contact: Jason Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert  

Page: 1 2

Related biology news :

1. LSU professor uses volcanic emissions to study Earths atmospheric past
2. Atmospheric scientists start monthlong air sampling campaign
3. Soil microbes produce less atmospheric CO2 than expected with climate warming
4. Atmospheric nanoparticles impact health, weather professor says
5. SRI International announces findings from new upper atmospheric radar system for scientific research
6. Atmospheric scientists trace the human role in Indonesian forest fires
7. Carbon accounting from atmospheric measurements -- the aircraft perspective
8. ESA tests laser to measure atmospheric carbon dioxide
9. Seabird ammonia emissions contribute to atmospheric acidity
10. Top predators and biodiversity historically pressured in Stellwagen Bank National Marine Sanctuary
11. Pitt researchers find new proteins that regulate blood pressure, flow
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Atmospheric pressure plasma jet from a grounded electrode
(Date:11/18/2014)... -- The Parenteral Drug Association (PDA) today confirmed that seven ... at least seven more will participate in the upcoming 2014 ... in Washington D.C. , Dec. 2-4. ... from the regulatory agencies in the United States ... effort to help advance the use of metrics in the ...
(Date:11/12/2014)... PALM BEACH GARDENS, Fla. , Nov. 12, 2014 ... management solutions, announced today that its U.are.U ® ... upscale retail bakery chain in Central Mexico ... solution in June 2014 to eliminate payroll issues caused ... Prior to installing the U.are.U fingerprint readers, Montparnasse ...
(Date:11/7/2014)... Dr. Debra Auguste, associate professor, biomedical engineering, in ... College of New York, have identified a molecule ... of the most aggressive forms of breast cancer. ... high mortality rate owing to aggressive proliferation and ... However, Professor Auguste,s team, discovered the overexpression of ...
Breaking Biology News(10 mins):FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2
... NEW YORK , Aug. 16, 2013   EyeLock Inc. , a ... of Roger An as Vice President of Global ... for research, analysis and strategic initiatives to further the embedded ... a heavy focus on Asia .   ...
... 2013) Primary results from a new clinical ... treated with the monoclonal antibody teplizumab (MacroGenics, Inc.) ... islet cell function, compared to controls. Further analyses ... that demonstrated especially robust responses ("responders"), suggesting that ...
... body is a complicated system of blood vessels, nerves, organs, ... When all are working together, it,s a symphony of form ... Biologist Rejji Kuruvilla and her fellow researchers uncovered what happens ... along with graduate students Philip Borden and Jessica Houtz, both ...
Cached Biology News:EyeLock Appoints Roger An Vice President of Global Market Development 2EyeLock Appoints Roger An Vice President of Global Market Development 3ITN type 1 diabetes study identifies subset of patients with strong response to therapy 2ITN type 1 diabetes study identifies subset of patients with strong response to therapy 3Sympathetic neurons 'cross talk' with pancreas cells during early development 2Sympathetic neurons 'cross talk' with pancreas cells during early development 3
(Date:11/24/2014)... 2014 Continental Clinical Solutions, LLC ... clinical trials at its mid-Atlantic late-phase research facility, ... created with the idea of closing patient disparities ... in medical advances," said Continental's CEO, Saleh ... the immortal cell line of Henrietta Lacks, dubious ...
(Date:11/24/2014)... Md. , Nov. 24, 2014  Spherix ... development company committed to the fostering and monetization ... Spherix v. VTech Telecommunications Ltd.,  Case No. 3:13-cv-03494-M ... Case No. 3:13-cv-03496-M, both in the United States ... Texas . On ...
(Date:11/22/2014)... November 21, 2014 Two new educational webinars ... comes next for ALS research and how the pharmaceutical industry ... the Ice Bucket Challenge: Where Does the ALS Money Go? ... 2 December 2014, Time: 1:30pm ET, Register to ... speaker Dr. Merit Cudkowicz, Julianne Dorn Professor of Neurology at ...
(Date:11/22/2014)... 21, 2014 CannLabs, Inc. ... analytics and scientific testing methodologies relating to cannabis, today ... $750,000 line of credit from an existing stockholder of ... have secured this commitment from one of our existing ... CannLabs. “This capital will help accelerate our planned expansions ...
Breaking Biology Technology:At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 3Markman Hearing Held as Scheduled in VTech and Uniden Cases 2DrugDev Webinars in December to Explore What Comes Next for ALS Research and How We Can Make Life Easier for Clinical Sites 2CannLabs Secures $750,000 Line Of Credit 2
... (GFP) in their retina cells or other tissues can ... real time computer record of movement and gene expression. ... BMC Biotechnology , will allow detailed analyses of ... Tower led a team of researchers from the University ...
... Washington Life Sciences Discovery,Fund (LSDF) has awarded nearly $4.7 ... Alliance (WAVA) and to support initial research into,three new ... the,grant is funded by Washington,s$350 million tobacco-lawsuit-settlement bonus,and provides ... , WAVA core ...
... Office has,issued Nutraceutix, Inc. a patent for BIO-tract. It ... the technology has been awarded based,on BIO-tract,s ability to ... their way to optimal release sites in the,intestinal tract. ... Nutraceutix comments: "Many years ago,we recognized the need for ...
Cached Biology Technology:Life Sciences Discovery Fund Awards $4.7 Million to Support New Vaccine Program 2Life Sciences Discovery Fund Awards $4.7 Million to Support New Vaccine Program 3Life Sciences Discovery Fund Awards $4.7 Million to Support New Vaccine Program 4Probiotic Delivery Technology Awarded Third International Patent 2