Subscribe free to our newsletters via your
. Earth Science News .




Subscribe free to our newsletters via your




















DISASTER MANAGEMENT
Glowing bacteria detect buried landmines
by Staff Writers
Jerusalem (SPX) Apr 12, 2017


Remote detection of buried landmines is a possible application of system to remotely detect buried landmines using a bacterial sensor and a laser-based scanning system. Image courtesy Hebrew University.

The need for safe and efficient technologies for detecting buried landmines and unexploded ordnance is a humanitarian issue of immense global proportions. About half a million people around the world are suffering from mine-inflicted injuries, and each year an additional 15 to 20 thousand more people are injured or killed by these devices. More than 100 million such devices are still buried in over 70 countries.

The major technical challenge in clearing minefields is detecting the mines. The technologies used today are not much different from those used in World War II, requiring detection teams to risk life and limb by physically entering the minefields. Clearly, there is a critical need for an efficient solution for the remote detection of buried landmines and unexploded ordnance.

Researchers from the Hebrew University of Jerusalem now report a potential answer to this need. Writing in the journal Nature Biotechnology, they present a novel, functional system combining lasers and bacteria to remotely map the location of buried landmines and unexploded ordnance.

The system is based on the observation that all landmines leak minute quantities of explosive vapors, which accumulate in the soil above them and serve as markers for their presence. The researchers molecularly engineered live bacteria that emit a fluorescent signal when they come into contact with these vapors. This signal can be recorded and quantified from a remote location.

The bacteria were encapsulated in small polymeric beads, which were scattered across the surface of a test field in which real antipersonnel landmines were buried. Using a laser-based scanning system, the test field was remotely scanned and the location of the buried landmines was determined. This appear to be the first demonstration of a functional standoff landmine detection system.

"Our field data show that engineered biosensors may be useful in a landmine detection system. For this to be possible, several challenges need to be overcome, such as enhancing the sensitivity and stability of the sensor bacteria, improving scanning speeds to cover large areas, and making the scanning apparatus more compact so it can be used on board a light unmanned aircraft or drone," said Prof. Shimshon Belkin, from the Hebrew University's Alexander Silberman Institute of Life Sciences, who was responsible for genetically engineering the bacterial sensors.

Research paper

DISASTER MANAGEMENT
As the richer get richer, carbon emissions rise, new research shows
Washington (UPI) Apr 7, 2017
Inequality is positively correlated with carbon emissions, new research shows. According to analysis by Boston College researchers, states in which wealth is more concentrated at the top burned more carbon between 1997 and 2012. Scientists calculated the additional carbon burned as the top 10 percent of each state's wealthiest citizens accrue another 1 percent of the economic pie ... read more

Related Links
The Hebrew University of Jerusalem
Bringing Order To A World Of Disasters
A world of storm and tempest
When the Earth Quakes

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

DISASTER MANAGEMENT
Glowing bacteria detect buried landmines

Mosul zoo lion and bear flown out of Iraq

World's oldest dental fillings found in Italy

US says ending UN mission in Haiti is a 'strong example'

DISASTER MANAGEMENT
Despite EU fines, Greece struggling to promote recycling

New method for 3-D printing extraterrestrial materials

Ultra-thin multilayer film for next-generation data storage and processing

USC Viterbi researchers develop new class of optoelectronic materials

DISASTER MANAGEMENT
Into the DNA of a coral reef predator

Guinea seizes shark fins from Chinese ships

New England's glacial upland soils provide major groundwater storage reservoir

Catch shares slow the 'race to fish'

DISASTER MANAGEMENT
Researchers unravel the drivers of large iceberg movement

Polar glaciers may be home to previously undiscovered carbon cycle

Warm Atlantic waters contribute to sea ice decline

Permafrost more vulnerable than thought: scientists

DISASTER MANAGEMENT
To save honey bees, human behavior must change

So sheep may safely graze

Fungus uses light to invade, attack wheat plants

Colombia forces struggle to root out coca

DISASTER MANAGEMENT
Houses damaged as strong quake hits south Philippines

Antarctic penguin colony repeatedly decimated by volcanic eruptions

At least 35 dead in Iran floods; Quake rattles northern Chile

Developing a microinsurance plan for California earthquakes

DISASTER MANAGEMENT
Four dead in army, police clashes in Nigeria: source

Three killed in Mogadishu army camp attack: military

El Nino can warn on cholera outbreaks in Africa: study

Five dead in jihadist attack in Mali

DISASTER MANAGEMENT
Putting social science modeling through its paces

Study reveals 10,000 years of genetic continuity in northwest North America

Married couples with shared ancestry tend to have similar genes

Researchers uncover prehistoric art and ornaments from Indonesian 'Ice Age'




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement