Navigation Links
NASA investigates use of 'trailblazing' material for new sensors
Date:12/5/2012

nside a vacuum chamber and inject gases that then react or decompose to produce the desired thin film.

Since then, the group has succeeded at manufacturing and processing relatively large, high-quality pieces of graphene, and is now ready to apply its expertise to advance other applications. "One of the most promising applications of this material is as a chemical sensor," Sultana said.

Chemical Sensors

She has teamed with retired Goddard scientist Fred Herrero, who is pursuing the research in an emeritus capacity, to develop a miniaturized, low-mass, low-power, graphene-based detector that could measure the amount of atomic oxygen in the upper atmosphere. Atomic oxygen in the upper atmosphere is created when ultraviolet radiation from the sun breaks apart oxygen molecule (O2). The resultant reactive element is highly corrosive. As satellites fly through the upper atmosphere, the chemical strikes them at about five miles per second. The impacts destroy commonly used spacecraft materials, such as Kapton.

Although scientists believe atomic oxygen makes up 96 percent of the thin atmosphere in low-Earth orbit, Herrero is interested in measuring its density and determining more precisely its role in creating atmospheric drag, which can cause orbiting spacecraft to lose altitude prematurely and plunge to Earth. "We still don't know the impact of atomic elements on spacecraft in creating a drag force," he said. "We don't know how much momentum is transferred between the atom and the spacecraft. This is important because engineers need to understand the impact to estimate the lifetime of a spacecraft and how long it will take before the spacecraft reenters Earth's atmosphere."

Research has shown that graphene-based sensors offer a good solution, Sultana said. When graphene absorbs atomic oxygen, it oxidizes, producing a change in the material's electrical resistance that a graphene-based sensor could then quickly count to
'/>"/>

Contact: Lori Keesey
ljkeesey@comcast.net
301-258-0192
NASA/Goddard Space Flight Center
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Nature Materials study: Boosting heat transfer with nanoglue
2. IntelliCell BioSciences Announces Research Agreement with the New Jersey Center for Biomaterials at Rutgers-The State University of New Jersey
3. Scotch tape finds new use as grasping smart material
4. Biomaterials China News 1210 - Annual Subscription
5. Accelrys Materials Studio Release 6.1 Speeds Innovation with Enterprise Capabilities
6. New discovery shows promise in future speed of synthesizing high-demand nanomaterials
7. Scientists build mechanically active DNA material
8. The Acta Materialia Inc Announces New Chairman of the Board of Governors
9. IBN develops superior fuel cell material
10. Advance in X-ray imaging shines light on nanomaterials
11. World record: Scientists from northern Germany produce the lightest material in the world
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NASA investigates use of 'trailblazing' material for new sensors
(Date:8/27/2015)...  Asterias Biotherapeutics, Inc. (NYSE MKT: AST), a leading ... today announced that executives from the company will present ... , Pedro Lichtinger , Chief ... Annual Global Investment Conference on Wednesday, September 10, 2015 ... in New York City . ...
(Date:8/27/2015)... Boston, MA (PRWEB) , ... August 27, 2015 , ... ... the United States, ranking iLab Solutions as number 1,361 in growth for the three ... part of the top 0.1% fastest-growing privately held organizations in the country. , ...
(Date:8/26/2015)... KS (PRWEB) , ... August 26, 2015 , ... ... Biologic Solutions, announces today that a second US laboratory is to open in ... accordance with the continued partnership and long-term growth of research and development through ...
(Date:8/26/2015)... , Aug. 26, 2015  The Diabetes ... the University of Miami Miller School of Medicine, ... clinical trial to test for the first time ... successfully completed.  This FDA approved Phase I/II study ... transplantation and is an important first step toward ...
Breaking Biology Technology:Asterias Biotherapeutics to Present at Upcoming Investor Conferences 2iLab Solutions Named to 2015 Inc. 5000 List 2iLab Solutions Named to 2015 Inc. 5000 List 3MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4
... Sanofi-aventis announced,today that the anticoagulant Clexane(R) ... in Japan by the Ministry of Health, ... thromboembolism (VTE) in patients,undergoing orthopaedic surgery of ... total knee replacement and hip fracture surgery., ...
... MNKD ), focused on discovering, developing and,commercializing treatments for ... the Wachovia Healthcare Conference on January 30, 2008 at,2:00 ... Interested parties can access a link to the ... section of the Company,s website at, http://www.mannkindcorp.com . A ...
... Jan. 25 Cephalon, Inc., (Nasdaq:,CEPH) today announced ... has,accepted the company,s supplemental New Drug Application (sNDA) ... of,breakthrough pain in opioid-tolerant patients with chronic pain. ... will convene an advisory,committee panel on May 6, ...
Cached Biology Technology:Clexane(R)/Lovenox(R) Approved in Japan 2Clexane(R)/Lovenox(R) Approved in Japan 3Clexane(R)/Lovenox(R) Approved in Japan 4Clexane(R)/Lovenox(R) Approved in Japan 5Cephalon Provides Update on Regulatory Status of the FENTORA Supplemental New Drug Application 2Cephalon Provides Update on Regulatory Status of the FENTORA Supplemental New Drug Application 3
(Date:8/3/2015)... Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... today announced that members of the executive management team ... Crest Global Technology Leadership Forum on Tuesday, August 11, ... be held at the Sonnenalp Resort in ... may include forward-looking information. An audio webcast of the ...
(Date:7/31/2015)... julho de 2015 A 10 a. ... realizada pela BGI de 22-25 de outubro de 2015, em ... A conferência está celebrando seu 10 o. aniversário este ... tornou uma das reuniões mais influentes do mundo no ... dinâmicos, entusiastas e prazerosos. A ICG-10 ...
(Date:7/31/2015)... , 31. Juli 2015 Die 10. internationale Konferenz ... BGI veranstaltet und findet vom 22. bis 25. ... , statt. Die Konferenz feiert ... Start 2006 ist die ICG weltweit zu einem ... Sie ist eines der dynamischsten, enthusiastischsten und angenehmsten ...
Breaking Biology News(10 mins):A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3
... Academy of Sciences will host the Fifth Annual ... design of oligosaccharides and proteins for materials and ... on the following areas: (1) synthetic and biosynthetic ... these macromolecules in materials science and glycobiology, (2) ...
... Kidney stones strike an estimated 1 million Americans each year, ... is among the worst known to man (or woman). ... Medicine in St. Louis provides evidence to explain why some ... Their discovery opens the door to finding effective drug treatments ...
... Concordia University is bringing us one step closer to clean ... a battery-like enzyme can store energy from seconds to hours, ... Chemical Society shows. Concordia Associate Professor Lszl Klmn ... graduate students Sasmit Deshmukh and Kai Tang has been ...
Cached Biology News:Kidney stone mystery solved 2Kidney stone mystery solved 3Nature's billion-year-old battery key to storing energy 2
2,4,6, Trinitrophenyl hapten is conjugated to lipopolysaccharide (LPS)....
For the quantitative determination of cyclic AMP (cAMP) concentrations in cell culture supernates, serum, plasma, saliva, urine and cell lysates....
... the Flp-In System creates isogenic cell ... levels of the protein of interest. ... Figure 3 (click link below). In ... chloramphenicol-acetyl transferase (CAT) was subcloned into ...
... solvents can be used, such as water, benzene, formamide, nitrobenzene, cyclohexane, 1,4-dioxane, p-xylene, dimethyl sulfoxide, freon ... * Range: 12-position switchable: ... ... ...
Biology Products: