Navigation Links
NASA study will help stop stowaways to Mars
Date:9/2/2007

NASA clean rooms, where scientists and engineers assemble spacecraft, have joined hot springs, ice caves, and deep mines as unlikely places where scientists have discovered ultra-hardy organisms collectively known as extremophiles. Some species of bacteria uncovered in a recent NASA study have never been detected anywhere else.

According to Dr. Kasthuri Venkateswaran, who led the study conducted at NASAs Jet Propulsion Laboratory in Pasadena, California, These findings will advance the search for life on Mars and other worlds both by sparking improved cleaning and sterilization methods and by preventing false-positive results in future experiments to detect extraterrestrial life.

NASA builds its spacecraft in rooms designed to minimize contamination by airborne particles because dust and its microbial passengers can foul instruments and invalidate experiments. If scientists someday find microbes on Mars, they will want to be sure they arent just hitchhikers from Earth.

Clean rooms used in the space program already undergo extensive cleaning and air filtering procedures, and the detection technology employed in this study will help NASA to develop and monitor improvements. Still, it is extremely difficult to eliminate all dust particles and microbes without damaging the electronic instruments the process is intended to protect.

Identifying and archiving clean-room microbes serves as an effective backup to the cleaning and sterilization efforts. Armed with a list of microbes that could possibly stow away on its spacecraft, NASA can disregard them if they turn up in future Martian samples.

As reported in FEMS Microbiology Ecology, a journal of the Federation of European Microbiological Societies, Venkateswarans team used a technology known as ribosomal RNA gene-sequence analysis to detect bacteria in clean rooms at Kennedy Space Center, Johnson Space Center, and the Jet Propulsion Laboratory. This was the first time that this technology was applied to NASA clean rooms.

They found that both the total number of bacteria and the diversity of bacterial species were much higher than previously detected. This has implications not only for NASA and other space agencies, but also for hospital operating rooms and industries such as semiconductor manufacturing, where cleanliness and sterility are critical.

Clean rooms are considered extreme environments for microbes because water and nutrients are in extremely short supply. Nevertheless, some bacteria are able to survive on what little moisture the low-humidity air provides and on trace elements in the wall paint, residue of cleaning solvents, and in the spacecraft materials, themselves.


'/>"/>
Contact: Lucy Mansfield
lucy.mansfield@oxon.blackwellpublishing.com
44-186-547-6241
Blackwell Publishing Ltd.
Source:Eurekalert

Related biology technology :

1. Antibodies for Studying NMDA Receptor Protein Expression and Synapse-Specific Immunolabeling
2. Optimizing Transfection Conditions for Studying Signal Transduction Pathways
3. Enzyme Immunoassay for Studying Intracellular Levels of cAMP
4. RT-PCR Primers for the Study of Apoptosis
5. A Comparison Study of Lipid Tranfection Reagents in A549, NIH 3T3 and COS-7 Cell Lines
6. New Reporter Plasmids for Studying Interferon-Stimulated Signal Transduction Pathways
7. New Fusion Trans-Activator Plasmids for Studying Signal Transduction Pathways
8. Medical College receives $377K to study brain disease
9. Kauffman study shows consistent entrepreneurial growth
10. Study affirms information technology-productivity link
11. Deltanoid Pharmaceuticals begins phase II osteoporosis study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/11/2017)... LAGUNA HILLS, Calif. , Oct. 11, 2017 ... London (ICR) and University of ... prognostic tool to risk-stratify patients with multiple myeloma (MM), in ... nine . The University of Leeds ... by Myeloma UK, and ICR will perform the testing services ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... (ADC) therapeutics, today confirmed licensing rights that give it exclusive global access ... developed in collaboration with Children’s Hospital Los Angeles (CHLA). Additionally, an ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... optimization firm for the life sciences and healthcare industries, announces a presentation by ... Francisco. , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” will present ...
(Date:10/9/2017)... Arizona (PRWEB) , ... October 09, 2017 , ... ... Kindred, a four-tiered line of medical marijuana products targeting the needs of consumers ... and packaging of Kindred takes place in Phoenix, Arizona. , As operators of ...
Breaking Biology Technology:
(Date:4/19/2017)... 2017 The global military biometrics ... marked by the presence of several large global players. ... five major players - 3M Cogent, NEC Corporation, M2SYS ... nearly 61% of the global military biometric market in ... global military biometrics market boast global presence, which has ...
(Date:4/13/2017)... According to a new market research report "Consumer IAM Market by ... Service, Authentication Type, Deployment Mode, Vertical, and Region - Global Forecast to ... USD 14.30 Billion in 2017 to USD 31.75 Billion by 2022, at ... ... MarketsandMarkets Logo ...
(Date:4/11/2017)... MELBOURNE, Florida , April 11, 2017 ... "Company"), a security technology company, announces the appointment of independent ... John Bendheim to its Board of Directors, furthering the ... ... behalf of NXT-ID, we look forward to their guidance and ...
Breaking Biology News(10 mins):