Navigation Links
0.2 second test for explosive liquids
Date:10/20/2009

Since a failed terrorist attack in 2006, plane passengers have not been able to carry bottles of liquid through security at airports, leaving some parched at the airport and others having expensive toiletries confiscated, but work by a group of physicists in Germany is paving the way to eliminate this necessary nuisance.

Research published today, Tuesday, 20 October, in IOP Publishing's Superconductor Science and Technology explains how a new form of spectroscopy, a scientific method that uses electromagnetic radiation to identify materials, and a novel nanoelectronic device to detect signals, can identify explosive liquids, or liquid components for the fabrication of explosives, in usual plastic bottles almost instantly.

Discussing the different molecular signatures, or atomic make-up, of simple liquids such as water, ethanol and acetone (a flammable liquid), the researchers from Forschungszentrum Jlich, an inter-disciplinary research centre situated between Aachen and Cologne in Germany, explain the need to extend the frequency range of spectral analysis to increase the reliability of liquid explosive detection.

While the idea of using electromagnetic radiation to inspect the properties of liquids is already thought a viable route to detecting explosive liquids, previous devices, working at single fixed frequencies within a small frequency range, cannot unambiguously distinguish mixtures of different liquids containing dangerous components which can be used as an explosive.

The researchers from Jlich have suggested a fast and reliable way to increase the range of frequencies that their spectrometer can analyse, thereby verifying the molecular signature of the liquid and creating a much more detailed 'thumbprint' that can be checked against the range of possibly dangerous liquids available to terrorists.

The researchers' new method of spectrometry is called Hilbert spectroscopy. It works over a wider range of frequencies, from a few gigahertz to a few terahertz. With the incorporation of a nanoscale electronic device, a Josephson junction, the researchers have undertaken practical detection experiments which directly transform the electromagnetic spectrum received by the spectrometer into an electrical signal which warns of suspicious fluids.

As the researchers write, "Our first experiments showed that with simple measurements at four frequencies ranging from microwave to terahertz we are able to perform fast and reliable identification of various widespread liquids, such as water, ethanol, propanol and acetone, placed in a plastic container. We have made and continue to make significant steps towards a practical device."


'/>"/>

Contact: Joseph Winters
joseph.winters@iop.org
44-794-632-1473
Institute of Physics
Source:Eurekalert

Related biology technology :

1. New technology detects chemical weapons in seconds
2. avVaa World Health Care Products Inc. Announces Second DRTV Test Week
3. Resverlogix RVX-208 Second Clinical Trial Demonstrates Success on Key Reverse Cholesterol Transport Markers
4. Second U.S.-Egypt Collaborative Clinical Study Blocked by New York State Department of Health (NYSDOH), This Time on Complications of Diabetes
5. BioTrends Research Group is Recognized by the Philly 100 for the Second Consecutive Year
6. CryoLifes Second Annual Surgical Congress for the Ross Procedure to Draw More than 130 Cardiovascular Surgeons from Around the World
7. ACD Completes the Second Closing of Series A Financing and Initiates Services for Biomarker Validation and Companion Diagnostic Development
8. NOVAVAX Announces Positive Results for the Second Phase II Clinical Trial of its Trivalent Seasonal Influenza Virus-like Particle (VLP) Vaccine Candidate
9. avVaa World Health Care Products, Inc. Announces the completion of its first week of DRTV 120/60 second test commercials for Neuroskin(R) Psoriasis Relief
10. Cardio3 BioSciences Presents Update on C-Cure(R) Second Generation Stem Cell Therapy for Heart Failure at European Society of Cardiology Congress
11. Encorium Announces Receipt of Letters from Nasdaq Regarding its Second Quarter 2009 Form 10-Q Filing
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... Rolf ... join the faculty of the University of North Carolina Kenan-Flagler Business School ... and entrepreneurship at UNC Kenan-Flagler, with a focus on the school’s international efforts, ...
(Date:6/24/2016)... ... 2016 , ... While the majority of commercial spectrophotometers and fluorometers use the ... models are higher end machines that use the more unconventional z-dimension of 20mm. ... the bottom of the cuvette holder. , FireflySci has developed several Agilent flow ...
(Date:6/23/2016)... 2016 /PRNewswire/ - FACIT has announced the creation ... biotechnology company, Propellon Therapeutics Inc. ("Propellon" or "the ... a portfolio of first-in-class WDR5 inhibitors for the ... WDR5 represent an exciting class of therapies, possessing ... for cancer patients. Substantial advances have been achieved ...
(Date:6/23/2016)... , June, 23, 2016  The Biodesign Challenge ... envision new ways to harness living systems and biotechnology, ... Art (MoMA) in New York City ... 130 participating students, showcased projects at MoMA,s Celeste Bartos ... Paola Antonelli , MoMA,s senior curator of architecture and ...
Breaking Biology Technology:
(Date:4/19/2016)... UAE, April 20, 2016 The ... as a compact web-based "all-in-one" system solution for all ... fingerprint reader or the door interface with integration authorization ... access control systems. The minimal dimensions of the access ... into the building installations offer considerable freedom of design ...
(Date:4/14/2016)... April 14, 2016 BioCatch ... Detection, today announced the appointment of Eyal Goldwerger ... role. Goldwerger,s leadership appointment comes at a ... of the deployment of its platform at several of ... technology, which discerns unique cognitive and physiological factors, is ...
(Date:3/31/2016)... R.I. , March 31, 2016  Genomics firm ... of founding CEO, Barrett Bready , M.D., who ... members of the original technical leadership team, including Chief ... President of Product Development, Steve Nurnberg and Vice President ... returned to the company. Dr. Bready served ...
Breaking Biology News(10 mins):