Navigation Links
Explosive breakthrough in research on molecular recognition
Date:2/12/2013

EdmontonEver wonder how sometimes people still get through security with explosives on their person? Research done in the University of Alberta's Department of Chemical and Materials Engineering has revealed a new way to better detect these molecules associated with explosive mixtures.

A team of researchers including post-doctoral fellows Seonghwan Kim, Dongkyu Lee and Xuchen Liu, with research associate Charles Van Neste, visiting professor, Sangmin Jeon from the Pohang University of Science and Technology (South Korea), and Department of Chemical and Materials Engineering professor Thomas Thundat, has found a method of using receptor-free nanomechanical infrared spectroscopy to increase recognition of chemical molecules in explosive mixtures.

Detecting trace amounts of explosives with mixed molecules presents a formidable challenge for sensors with chemical coatings. The nanomechanical infrared spectroscopy used by the Univesity of Alberta research team provides higher selectivity in molecular detection by measuring the photothermal effect of the absorbed molecules.

Thundat, who holds the Canadian Excellence Research Chair in Oil Sands Molecular Engineering, says the spectroscopy looks at the physical nature of the molecule and "even if there are mixed molecules, we can detect specific molecules using this method."

Seonghwan (Sam) Kim explained that conventional sensors based on coatings generally cannot detect specific molecules in complex mixtures if the concentration of interfering molecules is five times greater than the target molecules. The detection sensitivity and selectivity are drastically increased using the high-power infrared laser because the photothermal signal comes from the absorption of infrared photons and nonradiative decay processes. Using this method, a few trillionths of a gram of explosive molecules can now be detected in a complex mixture even if there is a higher concentration of other interfering
'/>"/>

Contact: Richard Cairney
richard.cairney@ualberta.ca
780-492-4514
University of Alberta
Source:Eurekalert

Page: 1 2

Related biology news :

1. RATS research may teach rodents to detect explosives
2. Nanotech device mimics dogs nose to detect explosives
3. International Drug & Explosives Detection Company IDenta Corp. Article to be Published by Zillion International
4. Breakthroughs in Chikungunya research from A*STAR spell new hope for better treatment and protection
5. Interventional radiology: Potential breakthrough to treat mens enlarged prostate
6. WanderID Launches Breakthrough ID Product for Children, Seniors
7. Nanotechnology breakthrough could dramatically improve medical tests
8. NTU researchers study little mighty creature for scientific breakthrough
9. Research breakthrough: High brain integration underlies winning performances
10. Breakthrough technology focuses in on disease traits of single cells
11. Forest carbon monitoring breakthrough in Colombia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... Dec. 18, 2014  23andMe, Inc., the leading personal ... that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four ... has served as a meeting place for peoples ... and the ongoing mixing of peoples with African, European, ...
(Date:12/17/2014)... , Dec. 15, 2014  HITLAB SM ... Clinical Practices (GCP) audit to confirm its adherence ... regulations. This accomplishment enables HITLAB to conduct regulated ... the highest principles for patient safety and research ... global healthcare access, quality, and delivery with innovative ...
(Date:12/15/2014)... Dec. 12, 2014 Research and Markets ... of the "Global Facial Recognition Market 2015-2019" ... http://photos.prnewswire.com/prnh/20130307/600769 Facial recognition ... individuals. Facial recognition system measures the overall facial ... edges, mouth, and the distance between eyes. Facial ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
... In 1911, the influential geneticist Charles Davenport published ... how genetics would improve society in the 20th century. ... widespread eugenics movement in the United States. Although the ... have long been rejected, many of the issues raised by ...
... they grow older, but autopsy data from a long-range study ... that the brains of a third of those who had ... the type of small, cumulative injury that can come from ... presented the study results at Experimental Biology 2008 in San ...
... University researchers report today in the journal Nature Genetics ... be associated with a dramatically lower risk of developing ... insight that rare mutations may collectively play a large ... such as hypertension also has implications for the diagnosis ...
Cached Biology News:Reflecting on the social implications of human genetics research -- past, present and future 21/3 of risk for dementia attributable to small vessel disease, autopsy study shows 2Yale study shows how rare genes have big impact on blood pressure 2
(Date:12/24/2014)... 23, 2014 SoundConnect’s ... designed to introduce cutting edge communication technology, ... partners of platform upgrades. This webinar series ... users in their quest to leverage web ... According to SoundConnect’s Marketing Manager, Seanna Baumgartner, ...
(Date:12/24/2014)... report expects global cell isolation and expansion market to ... carefully analyzed data about the vital drivers, restraints, trends, ... Copy of Report @ http://bit.ly/1yUxy0T , According ... will keep witnessing growth at an impressive CAGR during ... by rapid technological advancements, government funding and investments, and ...
(Date:12/24/2014)... 2014 Sigma-Aldrich Corporation (NASDAQ: ... under the Hart-Scott-Rodino Antitrust Improvements Act (HSR Act) ... 22, 2014, thereby completing the U.S. HSR Act ... of the Company by Merck KGaA, Darmstadt, Germany.  ... condition to closing the transaction, which remains subject ...
(Date:12/22/2014)... 22, 2014 /PRNewswire/ - RepliCel Life Sciences Inc. (OTCQB: ... focused on the development of autologous cell therapies, announced ... University of Calgary in conjunction with co-authors from Kyoto ... validates the company,s ongoing clinical research using dermal sheath ... baldness. The paper entitled " Hair Follicle ...
Breaking Biology Technology:SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 2Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 4Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 5
... May 6 Sigma-Aldrich Corporation,(Nasdaq: SIAL ) ... Stock Conference,on Tuesday, May 13th at 1:20 PM ... via live audio broadcast over the,Internet available at ... to access this file. For the webcast on, ...
... May 6 Sigma-Aldrich Corporation,(Nasdaq: SIAL ) will ... on Tuesday, May 13th at 10:40 AM Pacific Time ... audio broadcast over the,Internet available at http://ir.sigmaaldrich.com . ... For the webcast on, http://ir.sigmaaldrich.com users will need ...
... May 6 ExonHit Therapeutics S.A.,(Alternext: ALEHT), ... the availability of its new SpliceArray(TM) for ... the basic and pre-clinical,research communities. These SpliceArray(TM) ... for the rat genome commercially,available today. ExonHit,s ...
Cached Biology Technology:ExonHit Launches Rat Genome SpliceArray(TM) Products to Expand High Resolution Gene Expression Profiling for use in Disease Modeling and Toxicogenomics 2ExonHit Launches Rat Genome SpliceArray(TM) Products to Expand High Resolution Gene Expression Profiling for use in Disease Modeling and Toxicogenomics 3
... and low background ,This solution greatly enhances ... higher than obtained with conventional methods. ,Two ... and secondary antibodies, which can suppress the ... , Wide versatility ,It is applicable to ...
Chicken Anti-Human Stomatin-like 2 (STOML2 Polyclonal AntibodyNew Applications: ELISA, Western Blot...
Anti-Chicken IgY, (IgG) F(ab')2 Fragment Specific....
... Antibody, Unconjugated Applications: ... Use at an assay dependent dilution. WB: Use ... this concentration is determined using a whole extract ... Not tested in other applications. Optimal dilutions/concentrations ...
Biology Products: