This book includes a plain text version that is designed for high accessibility. To use this version please follow this link.
10-03 :: March 2010

nanotimes

News in Brief

IQM. That way, the company fills a seminal market niche with space research results. The IQM project transfers comprehensive long-term space research knowledge to new terrestrial application areas. It aims at developing and manufacturing tools for generating ion and particle beams, especially high frequency ion beam sources.

The product spectrum of IQM ranges from small ion sources, such as locally limited surface treat- ment, to bigger sources for dusting materials and manufacturing and stabilizing coatings.

Head and founder of IQMl, Dr. Davar Feili, is confident because potential users find products and services of the project already appealing: “The development of ion engines for terrestrial applica- tions serves an existing need that was increasingly brought to our attention by research and industry over the last years. By manufacturing practical complete ion source systems we can now meet the requirements.”

http://www.transmit.de

Researchers from the Russian Academy of Sciences-

has been proposed a bioengineering method for

self-assembly of multifunctional superstructures

with in-advance programmable properties. The method employs two unique proteins, barnase and barstar, to rapidly join the structural components together directly in water solutions.

The properties of the superstructures can be de- signed on demand by linking different agents of various sizes and chemical nature, designated for specific goals. As a proof of concept, colloidally sta-

51

ble trifunctional structures have been assembled by binding together magnetic particles, quantum dots, and antibodies using barnase and barstar. The as- sembly has demonstrated that the bonds between these proteins are strong enough to hold macrosco- pic (5nm to 3μm) particles together. © PNAS

Maxim P. Nikitina,b, Tatiana A. Zdobnovaa, Sergey V. Lukasha, Oleg A. Stremovskiya, and Sergey M. Deyeva: Protein-assisted self-assembly of multifunctional nanoparti- cles, In: PNAS Early Edition, March 15, 2010, DOI:10.1073/ pnas.1001142107:

http://dx.doi.org/10.1073/pnas.1001142107

Researchers from Stanford University, Carnegie Institution of Washington, SLAC National Accele- rator Laboratory and National Cheng Kung Uni-

versity, Taiwan, studied mixtures of Fe, Pt, and W up to 282 GPa with 250 to 600nm size synchrotron x-ray absorption and diffraction probes. The probes readily resolve signals from individual materials, between sample and gasket, and peak pressures, in contrast to the 5-μm-sized x-ray beams that are now becoming routine.

The use of nanoscale x-ray beams also enables single-crystal x-ray diffraction studies in nominally polycrystalline samples at ultrahigh pressures, as

demonstrated in measurements of (Mg,Fe)SiO3 postperovskite.

These capabilities have potential for driving a push toward higher maximum pressures and further

miniaturization of high-pressure devices, in the

process advancing studies at extreme conditions.

Lin Wanga, Yang Dinga, Wenge Yanga, Wenjun Liuc, Zhonghou Caic, Jennifer Kungd, Jinfu Shue, Russell J. Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69