the tiny Brownian movements of the object, and then applying precisely customized electric fields to cancel those movements exactly. By optimizing their setup, the researchers trapped single fluorescently labeled protein molecules in solution. These molecules (as small as 10 nm in diameter) are the first proteins trapped in solution and the smallest objects ever trapped in solution. This achievement opens the possibility of studying individual proteins free-floating in solution. (Paper G26.1)

HYDROGEN ECONOMY
Hydrogen power has the potential to produce less pollution and reduce dependence on fossil fuels. But significant challenges remain in order to make a hydrogen economy efficient and economically feasible. Speakers in session A5 will present an overview of the challenges for the hydrogen economy, and some promising ways in which physics and materials science can enable progress. Mildred Dresselhaus of MIT (and past president of the APS and AAAS, as well as being a former official of DOE) will open the session with a big picture view of the hydrogen initiative. She will discuss the needs of a practical hydrogen economy, including production, storage, and utilization and will also highlight recent progress and opportunities (A5.1). Next, Claus Hviid Christensen of the Technical University of Denmark will discuss metal ammine salts that have been recently proposed for safe, reversible, high-density and low-cost hydrogen carriers (A5.3). Manos Mavrikakis (UW-Madison) will show how first-principles methods can be used to predict properties of materials and identify catalysts for specific applications needed for hydrogen fuel cells (A5.4). (A number of other sessions at the meeting also focus on new materials for hydrogen storage: A16, H16, N16)

OTHER ENERGY SESSIONS
In addition to the hydrogen economy, two other speakers in A5 will talk about novel materials for other energy applications: Mercouri Kanatzidis (Michigan St
'"/>

Contact: James Riordon
riordon@aps.org
301-209-3238
American Physical Society
17-Mar-2006

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Related biology news :

1. Unraveling the physics of DNAs double helix
2. Pendulum love, science class gender gaps, musical mind mirrors, and unparticle physics
3. Manchester to spearhead 8.3 million particle physics project
4. Press conferences at the years largest physics meeting
5. Largest physics meeting of the year, in Denver
6. Protein folding physics, nanohandles, sunscreen for algae and classical quantum weirdness
7. Technique used commonly in physics finds application in neuroscience
8. What do Racquel Welch and quantum physics have in common?
9. APS physics tip sheet #62
10. Unified physics theory explains animals running, flying and swimming
11. APS physics tip sheet #57