Navigation Links
Sensitive laser instrument could aid search for life on Mars
Date:10/15/2008

IDAHO FALLS -- Minuscule traces of cells can be detected in a mineral likely present on Mars, a new study shows. The results, obtained using a technique developed at the U.S. Department of Energy's Idaho National Laboratory, could help mission scientists choose Martian surface samples with the most promise for yielding signs of life.

INL's instrument blasts off tiny bits of mineral and looks for chemical signatures of molecules commonly found in cells. While other methods require extensive sample handling, this analysis relies on a "point-and-shoot" laser technique that preserves more of the rock and reduces contamination risk. In the current online issue of the peer-reviewed Geomicrobiology Journal, the researchers report they could detect biomolecules at concentrations as low as 3 parts per trillion.

High sensitivity is crucial for NASA's search for life on Mars, says INL scientist Jill Scott, whose team collaborated with researchers at the University of Montana-Missoula on the study.

"The worst-case scenario is a false negative," Scott says. "If you're just missing stuff, that would be devastating."

While other techniques also have achieved parts-per-trillion sensitivity, they often require scientists to first extract the organic cell remnants from the mineral. This type of preparation can use up large amounts of sample and potentially introduce contamination.

INL's method is based on a technique called laser desorption mass spectroscopy. By focusing a laser beam on a spot less than one-hundredth the width of a pencil point, the researchers can knock microscopic fragments off the mineral. Those fragments react with organic molecules to form detectable charged particles called ions. The team can then study the ion patterns for signatures that might be specific to biomolecules.

Typically, this method would require the organic molecules to be embedded in a synthetic matrix that encourages ion formatio
'/>"/>

Contact: Roberta Kwok
Roberta.Kwok@inl.gov
208-526-2941
DOE/Idaho National Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
2. Sensitive nanowire disease detectors made by Yale scientists
3. For insulin sensitive overweight patients, 1 session of exercise improves metabolic health
4. More sensitive radiology monitoring in the Basque Country
5. Researchers develop new ultrasensitive assay to detect most poisonous substance known
6. New chemically-sensitive MRI scan may bypass some invasive diagnostic tests in next decade
7. Life under the laser
8. Laser fluorescence could find life on Mars
9. Argonne scientists use lasers to align molecules
10. Detecting dangerous chemicals with lasers, exploring the brains circuitry with light and more
11. Cleaner diesels thanks to laser light
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2015)... , March 23, 2015 SoundView Technology Group issues ... (NASDAQ: NXTD ) Wocket smart wallet. SoundView was one of ... on their experience with the Wocket in multiple scenarios and ... Whole Foods and other retailers, making both debit and credit ... also says, "If the company meets their plans in ...
(Date:3/20/2015)... Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) has announced the addition ... report to their offering. This report analyzes ... report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... Annual estimates and forecasts are provided for the period 2013 ...
(Date:3/17/2015)... , March 17, 2015 MedNet ... specializing in clinical study management systems, is pleased ... attendance at ARENA,s Outsourcing in Clinical Trials Southeast ... event provides an excellent forum for MedNet to ... and affordable software-as-a-service (SaaS) eClinical technology platform. ...
Breaking Biology News(10 mins):Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2
... certified winner of the UC Davis "Western Cooling Challenge" ... that their five-ton commercial rooftop unit should be able ... half the energy needed by conventional cooling units. ... first to take our rigorous tests at the Advanced ...
... Leipzig Max Planck Institute for Human Cognitive and Brain ... London have now developed a mathematical model which could ... language. In the future, this kind of algorithms which ... world around them. Many people will have personal ...
... cells for replication and production of virus progeny. Thus ... induces therapy resistance. New improved therapies attempt to targets ... The team led by Professor Dr. Ralf Bartenschlager, ... Hygiene Institute of Heidelberg University Hospital, has identified a ...
Cached Biology News:UC Davis challenge produces a better air conditioner 2Doing what the brain does -- how computers learn to listen 2Doing what the brain does -- how computers learn to listen 3New strategy for inhibiting virus replication 2
(Date:4/21/2015)... April 21, 2015  Novogen Limited (ASX:NRT; NASDAQ: ... advises that it has entered into definitive agreements ... shares plus one attaching 6-month option and half ... share issued, to institutional investors in ... placement for aggregate gross proceeds of approximately AU$15,500,000 ...
(Date:4/21/2015)... Springfield, Mo. (PRWEB) April 21, 2015 ... vessels, HOLLOWAY AMERICA is slated to discuss its custom ... also present its reimagined website, which launched just prior ... Wed. and Thurs. (April 21, 22 and 23) at ... than 12,000 representatives of the world’s largest and most ...
(Date:4/20/2015)... Winston-Salem, NC and Champaign, IL (PRWEB) April 20, 2015 ... announced today the establishment of its 12th clinical research ... 2015, PMG Research has assumed operation of the clinical ... IL, expanding PMG’s footprint outside the Southeast to a ... site within a 150 multi-specialty physician practice enhances PMG’s ...
(Date:4/20/2015)... -- "Everybody is affected by cancer sooner or later," Dr. ... We,ve got to get away from that."  If you,ve ... loved one or friend battling for their life against ... other treatments cause the human body. It,s almost enough ... succumb to the disease. Dr. Dionne has developed a ...
Breaking Biology Technology:Novogen Conducts Private Placement and Announces Rights Offering to Shareholders 2Novogen Conducts Private Placement and Announces Rights Offering to Shareholders 3Novogen Conducts Private Placement and Announces Rights Offering to Shareholders 4Novogen Conducts Private Placement and Announces Rights Offering to Shareholders 5Novogen Conducts Private Placement and Announces Rights Offering to Shareholders 6HOLLOWAY AMERICA to Reveal Newly Designed Responsive Website at INTERPHEX 2015 Today 2HOLLOWAY AMERICA to Reveal Newly Designed Responsive Website at INTERPHEX 2015 Today 3PMG Research Announces the Formation of its 12th Site in Champaign-Urbana, IL 2PMG Research Announces the Formation of its 12th Site in Champaign-Urbana, IL 3Is Dr. Craig Dionne the Steve Jobs of Cancer Research? 2
... First tenant moves in Stevenage Bioscience Catalyst ... to announce that it is now open for business. In ... , which has taken space in the Incubator building. SBC ... one - discussions with a range of interesting tenants are ...
... Biosciences, a segment of BD (Becton, Dickinson and Company), ... Mesenchymal Stem Cell Serum-Free (hMSC SF), a complete cell ... from bone marrow. The BD Mosaic ... expansion in a shorter culture time—about half the time ...
... 2012  New England Biolabs, Inc. (NEB) and Synthetic Genomics, ... a licensing agreement whereby NEB will introduce a master ... by Dr. Daniel Gibson and his colleagues at the ... program sponsored by SGI. The financial details of this ...
Cached Biology Technology:Stevenage Bioscience Catalyst Opens With Exciting Year Ahead 2Stevenage Bioscience Catalyst Opens With Exciting Year Ahead 3Stevenage Bioscience Catalyst Opens With Exciting Year Ahead 4Stevenage Bioscience Catalyst Opens With Exciting Year Ahead 5Stevenage Bioscience Catalyst Opens With Exciting Year Ahead 6Mesenchymal Stem Cells Have New Cell Culture Environment 2New England Biolabs Signs Agreement with Synthetic Genomics Inc. to Launch Gibson Assembly™ Master Mix for Molecular and Synthetic Biology Applications 2New England Biolabs Signs Agreement with Synthetic Genomics Inc. to Launch Gibson Assembly™ Master Mix for Molecular and Synthetic Biology Applications 3
... Blot Processing Standard Tray (3 per ... gel staining and blot processing.Automated staining ... for proteins and nucleic acid analysis.Prepares ... and chromogenic detection.Programmable control of protocol, ...
DITHIOTHREITOL, 150UMOL, 1 EA. Dithiothreitol (DTT), 0.1 M Solution:, *0.1 M solution of DTT in high purity dH2O., *0.2 m filtered., *Storage: -20C. Category: SEQUENASE....
GOAT ANTI HUMAN PARAINFLUENZA VIRUS 2+3...
75 x 25 mm; sterile, recommended for immunohistochemistry of cell lines growing in suspension, Poly-D-Lysine coated, glass slides with polystyrene vessel, lid and safety removal tool...
Biology Products: