Navigation Links
A noble gas cage
Date:7/20/2014

non and krypton without having to use cryogenics. Although a leading MOF could remove xenon at very low concentrations and at ambient temperatures admirably, researchers wanted to find a material that performed better.

Thallapally's collaborator Andrew Cooper at the University of Liverpool and others had been researching materials called porous organic cages, whose molecular structures are made up of repeating units that form 3-D cages. Cages built from a molecule called CC3 are the right size to hold about three atoms of xenon, krypton or radon.

To test whether CC3 might be useful here, the team simulated on a computer CC3 interacting with atoms of xenon and other noble gases. The molecular structure of CC3 naturally expands and contracts. The researchers found this breathing created a hole in the cage that grew to 4.5 angstroms wide and shrunk to 3.6 angstroms. One atom of xenon is 4.1 angstroms wide, suggesting it could fit within the window if the cage opens long enough. (Krypton and radon are 3.69 angstroms and 4.17 angstroms wide, respectively, and it takes 10 million angstroms to span a millimeter.)

The computer simulations revealed that CC3 opens its windows big enough for xenon about 7 percent of the time, but that is enough for xenon to hop in. In addition, xenon has a higher likelihood of hopping in than hopping out, essentially trapping the noble gas inside.

The team then tested how well CC3 could pull low concentrations of xenon and krypton out of air, a mix of gases that included oxygen, argon, carbon dioxide and nitrogen. With xenon at 400 parts per million and krypton at 40 parts per million, the researchers sent the mix through a sample of CC3 and measured how long it took for the gases to come out the other side.

Oxygen, nitrogen, argon and carbon dioxide -- abundant components of air -- traveled through the CC3 and continued to be measured for the experiment's full 45 minute span. Xenon however stayed
'/>"/>

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. "Commit to Confidence" Hits Amazon and Barnes & Noble
2. MetaStat to Present at Noble Financial Capital Markets Ninth Annual Equity Conference on January 22, 2013
3. PharmAthene To Present At The Noble Financial 9th Annual Equity Conference On Tuesday, January 22, 2013
4. MiMedx Group to Present at the BIOX; Noble Financial Capital Markets Life Sciences Exposition
5. Inovio Pharmaceuticals to Present at Noble Financial Life Sciences Conference
6. LCA-Vision to Present at the Noble Financial Eighth Annual Equity Conference
7. PharmAthene to Present at the Noble Financial Eighth Annual Equity Conference on Tuesday, January 17, 2012
8. Inovio Pharmaceuticals to Present at Noble Financial 8th Annual Equity Conference
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A noble gas cage
(Date:5/21/2015)... , May 21, 2015  Prima Biomed Ltd. ... that is striving to become a leader in the ... recently announced that the final CVac data from the ... a clear trend for a clinically meaningful improvement in ... second remission patients. In the group of ...
(Date:5/21/2015)... (PRWEB) May 21, 2015 W. ... its manufacturing facility in Worms, Germany has received ... independent subsidiary of the International Pharmaceutical Excipient Council ... facilities that produce its SYLOID® FP brand of ... GMP certification, following the Curtis Bay, Maryland (USA) ...
(Date:5/21/2015)... 20, 2015 Research and Markets ... the "2015 Global Survey on Flow Cytometry ... The primary goal of this research is ... and reagents. Key information the survey seeks to ... flow cytometers, predominantly used applications for flow cytometers, ...
(Date:5/20/2015)... , May 20, 2015 ... presented preliminary data demonstrating the ability of the ... fibrosis (IPF) from other interstitial lung diseases (ILDs) ... the classifier,s potential to help thousands of patients ... ambiguity in IPF diagnosis – a frequent challenge ...
Breaking Biology Technology:Correction Continues after Big Move - BrokerBank Securities, Inc. 2Grace European Facility Receives GMP Excipient Certification for SYLOID® FP Silica Gel 2Global Survey on Flow Cytometry Adoption Trends 2015 2Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 2Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 3Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 4Veracyte Presents Preliminary Data Demonstrating Ability of Molecular Classifier to Improve Non-Surgical IPF Diagnosis Using Bronchoscopy Samples 5
... Jan. 2 Bionovo, Inc.,(Nasdaq: BNVI ... that can be used to identify estrogenic drugs ... Cellular Endocrinology, showed,that the new regulatory elements can ... and allow for more,accurate prediction of specific tissue ...
... published today in the New England Journal of Medicine ... store kidneys for transplantation offers significant benefits in kidney ... a traditional "ice box", or cold storage. Unlike ... and vascular performance of the organ in real time, ...
... Therapeutics,(Nasdaq: NKTR ) today announced that ... pulmonary delivery assets, technology, and intellectual,property to Novartis ... completed,on December 31, 2008. , ... certain dry powder and,liquid pulmonary formulation and manufacturing ...
Cached Biology Technology:Bionovo Publishes Discoveries in Predictable Tissue Selectivity for Selective Estrogen Receptor Modulators Platform 2Bionovo Publishes Discoveries in Predictable Tissue Selectivity for Selective Estrogen Receptor Modulators Platform 3Study Shows Machine Perfusion Significantly Improves Transplant Results 2Study Shows Machine Perfusion Significantly Improves Transplant Results 3Nektar Announces Closing of Sale of Specific Pulmonary Delivery Assets to Novartis for $115 Million 2
(Date:5/20/2015)... , May 20, 2015 /PRNewswire/ ... http://www.researchandmarkets.com/research/h8t4x6/5year ) has announced the addition ... the Global Iris Recognition Market"  report ... , ,This research service analyses trends ... the government and commercial sectors, globally. ...
(Date:5/18/2015)... , May 18, 2015 Fingerprint ... sensors FPC1020, FPC1025, FPC1145, FPC1155 and FPC1035 from one if ... June until and including Q3 2015 and the sensors will ... . Communicated order values for 2015 hereby amount to 740 ... Q1 2015 of 140 MSEK and a number of smaller ...
(Date:5/11/2015)... , May 11, 2015 Curemark LLC, ... the start of a new Phase III double blind, ... its novel formulation, CM-AT, on all children ages 3-8 ... its FDA Phase III double blinded clinical trial for ... low levels of the digestive enzyme chymotrypsin. This new ...
Breaking Biology News(10 mins):Global Iris Recognition Market Report 2015 - 5-Year Opportunity Analysis 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Curemark, LLC, Launches New Phase III Trial in Expanded Population of Children with Autism 2
... unseen details of an anthrax bacteriophage a virus that ... it infects its host, and providing an initial blueprint for ... for the detection and destruction of anthrax and other potential ... spore-binding phage 8a (or SBP8a, for short), is too ...
... University of Gothenburg,s Sahlgrenska Academy have discovered a brand new ... around the world, three of them in the Gothenburg area, ... Sweden was out kayaking when he went down with acute ... to hospital where it was found that he was also ...
... dental X-rays to predict who is at risk of fractures, ... reported in the journal Nature Reviews Endocrinology . ... Sahlgrenska Academy and Region Vstra Gtaland demonstrated that a sparse ... is linked to a greater chance of having previously had ...
Cached Biology News:Researchers reveal SBP8a configurations 2Researchers reveal SBP8a configurations 3New tick-borne disease discovered in Gothenburg 2Dental X-rays can predict fractures 2
... 60kDa (A) and 36kDa (C) subunits ... 7.5, 500mM NaCl, 60mM 2-mercaptoethanol, 1mM ... DTT, and 0.1mg/ml serum albumin Properites: ... proteins. Purification: DEAE chromatography, aminohexyl-agarose and ...
... preparative LC/MS, using mass numbers as a ... ideal for performing investigation and research of ... both analytical and preparative operation. Switching between ... the software. This support provides a quick ...
... Tracker Intracellular Localization Kit provides a straight ... siRNA, of your design, in an efficient ... experiments. Subcellular localization and functional inhibition of ... introduction of the labeled siRNA into mammalian ...
... The Label IT siRNA Tracker Intracellular ... provides a straight forward approach to ... your design, in an efficient yet ... experiments. Subcellular localization and functional inhibition ...
Biology Products: