NASA SEEKS PROPOSALS FOR SMALL SUBORBITAL PAYLOADS

The following excerpt is from the NASA website: “WASHINGTON -- NASA is seeking proposals for small technology payloads that could fly on future NASA-sponsored suborbital flights. These future flights will travel to the edge of space and back, testing the innovative new technologies before they're sent to work in the harsh environment of space. "NASA's Game Changing Development Program focuses on maturing advanced space technologies that may lead to entirely new approaches for the agency's future space missions while providing solutions to significant national needs and adding to our nation’s innovation economy," said Michael Gazarik, director of NASA's Space Technology Program at NASA Headquarters in Washington. "This solicitation offers an opportunity to develop potentially transformative technologies that take advantage of our Flight Opportunities Program platforms, which allow frequent and predictable commercial access to near-space, with easy recovery of intact payloads." NASA's Game Changing Opportunities research announcement seeks proposals for payloads, vehicle enhancements and onboard facilities for payload integration that will help the agency advance technology development in the areas of exploration, space operations and other innovative technology areas relevant to NASA's missions. Sponsored by NASA's Space Technology Program, the agency expects proposals from entrepreneurs, scientists, technologists, instrument builders, research managers, and vehicle builders and operators. "This call for proposals is a great opportunity to develop innovative technology development payloads for flight on commercial suborbital, reusable vehicles which have novel ideas and approaches have the potential to revolutionize future space missions," said Stephen Gaddis, Game Changing Development program manager at NASA's Langley Research Center in Hampton, Va. Special emphasis will be given to proposals that address basic and applied research as well as development for advanced technologies and the development of test articles and techniques for evaluating the articles. Following development, selected payloads will be made available to NASA's Flight Opportunities Program for pairing with appropriate suborbital reusable launch service provider flights. In August 2011, NASA selected seven U.S. companies that can provide flight services and platforms to test innovative technology payloads through the Flight Opportunities Program. Under this solicitation, the selected Flight Opportunities suborbital reusable launch vehicles could be modified to facilitate integration and payload engineering of future payloads in support of specific research needs. Proposals will be accepted from U.S. or non-U.S. organizations including NASA centers and other government agencies, federally funded research and development centers, educational institutions, industry and nonprofit organizations. NASA expects to make approximately 20 awards this summer, with the majority of awards ranging between approximately $50,000 and $125,000 each. Several awards may be made for up to $500,000 in the area of vehicle integration and payload engineering technology enhancements and onboard research facilities to improve platform capabilities. The Game Changing Opportunities in Technology Development research announcement is available through the NASA Solicitation and Proposal Integrated Review and Evaluation System website at: http://tinyurl.com/7xk52wa NASA's Langley Research Center manages the Game Changing Development Program and NASA's Dryden Flight Research Center at Edwards, Calif., manages the Flight Opportunities Program for the agency's Space Technology Program. For more information on the Game Changing Development activities and information on this solicitation for payloads, visit: http://go.usa.gov/RPS “

NEW MAGNETIC BACTERIA COULD LEAD TO BIOTECH AND NANOTECH APPLICATIONS

The following excerpt is from the National Science Foundation website:

“Nevada, the "Silver State," is well-known for mining precious metals.
But scientists Dennis Bazylinski and colleagues at the University of Nevada Las Vegas (UNLV) do a different type of mining.
They sluice through every water body they can find, looking for new forms of microbial magnetism.
In a basin named Badwater on the edge of Death Valley National Park, Bazylinski and researcher Christopher Lefèvre hit pay dirt.

Lefèvre is with the French National Center of Scientific Research and University of Aix-Marseille II.
In this week's issue of the journal Science, Bazylinski, Lefèvre and others report that they identified, isolated and grew a new type of magnetic bacteria that could lead to novel biotech and nanotech uses.
Magnetotactic bacteria are simple, single-celled organisms that are found in almost all bodies of water.
As their name suggests, they orient and navigate along magnetic fields like miniature swimming compass needles.

This is due to the nano-sized crystals of the minerals magnetite or greigite they produce.
The presence of these magnetic crystals makes the bacteria and their internal crystals--called magnetosomes--useful in drug delivery and medical imaging.

The research was funded by the U.S. National Science Foundation (NSF), the U.S. Department of Energy and the French Foundation for Medical Research.

"The finding is significant in showing that this bacterium has specific genes to synthesize magnetite and greigite, and that the proportion of these magnetosomes varies with the chemistry of the environment," said Enriqueta Barrera, program director in NSF's Division of Earth Sciences.

While many magnetite-producing bacteria can be grown and easily studied, Bazylinski and his team were the first to cultivate a greigite-producing species. Greigite is an iron sulfide mineral, the equivalent of the iron oxide magnetite.
"Because greigite-producing bacteria have never been isolated, the crystals haven't been tested for the types of biomedical and other applications that currently use magnetite," said Bazylinski.
"Greigite is an iron sulfide that may be superior to magnetite in some applications due to its slightly different physical and magnetic properties. Now we have the opportunity to find out."
Researchers found the greigite-producing bacterium, called BW-1, in water samples collected more than 280 feet below sea level in Badwater Basin. Lefèvre and Bazylinski later isolated and grew it leading to the discovery that  BW-1 produces both greigite and magnetite
.
A detailed look at its DNA revealed that BW-1 has two sets of magnetosome genes, unlike other such bacteria, which produce only one mineral and have only one set of magnetosome genes.
This suggests that the production of magnetite and greigite in BW-1 is likely controlled by separate sets of genes. That could be important in the mass production of either mineral for specific applications.
According to Bazylinski, the greigite-producing bacteria represent a new, previously unrecognized group of sulfate-reducing bacteria that "breathe" the compound sulfate rather than oxygen as most living organisms do.
"With how much is known about sulfate-reducing bacteria, it's surprising that no one has described this group," he said.

Working with Bazylinski and Lefèvre on the project are David Pignol of the French National Center of Scientific Research and University of Aix-Marseille II; Nicolas Menguy of Pierre and Marie Curie University, France; Fernanda Abreu and Ulysses Lins of the Federal University of Rio de Janeiro, Brazil; Mihaly Pósfai of the University of Pannonia, Hungary; Tanya Prozorov of Ames Laboratory, Iowa; and Richard Frankel of California Polytechnic State University, San Luis Obispo.”