March 2008 Volume 7 Number 3, pp 165 - 254
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Now live: January/February 2008 chemistry podcast
In this show, we find out how DNA is helping researchers build
crystals out of nanoparticles, discover a clever chemical trick for
manipulating uranium, explore the controversial field of DNA
conductivity and talk to chemist Bruce Gibb about re-building life
and lab after hurricane Katrina.
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EDITORIAL
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BEACHCOMBING FOR BIOSCIENCE p165
Recent developments in bioscience are reported in a business-oriented
publication, called SciBX, a joint venture by Nature Publishing
Group and Biocentury.
doi:10.1038/nmat2138
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYf0E5
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CORRESPONDENCE
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OPERATING MECHANISM OF LIGHT-EMITTING ELECTROCHEMICAL CELLS p167
Qibing Pei and Alan J. Heeger
doi:10.1038/nmat2128
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYg0E6
OPERATING MECHANISM OF LIGHT-EMITTING ELECTROCHEMICAL CELLS p168
George G. Malliaras et al.
doi:10.1038/nmat2129
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYh0E7
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RESEARCH HIGHLIGHTS
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DOWN TO THE WIRE AND BEYOND... p169
doi:10.1038/nmat2139
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYi0E8
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NEWS AND VIEWS
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ORGANIC ELECTRONICS: COMPLEXITY MADE SIMPLE pp171 - 172
Simplification in large-area manufacturing of complex organic
electronics is a critical step towards ubiquitous, flexible,
portable applications; why not make the molecules do the work?
Natalie Stingelin-Stutzmann
doi:10.1038/nmat2121
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYj0EA
POLYMER THERAPEUTICS: RESERVOIR DRUGS pp172 - 174
Peptide-functionalized polymer nanoparticles target and bind to
articular cartilage tissue, making them promising drug-delivery
vehicles.
Lori Setton
doi:10.1038/nmat2130
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYk0EB
GRANULAR MATTER: STICKY SAND pp174 - 175
The mechanical properties of granular matter are affected by the
addition of liquid - however, over a wide range, the actual amount
of liquid is unimportant. Now, imaging techniques look inside the
wet granular pile, or 'sandcastle', to help solve this puzzle.
Arshad Kudrolli
doi:10.1038/nmat2131
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYl0EC
MATERIAL WITNESS: GREEN-SKY THINKING p176
Philip Ball
doi:10.1038/nmat2134
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYm0ED
FULLERIDES: COMPETITION FIX pp176 - 177
The complex electronic properties of alkali-doped fullerides derive
from the interplay between competing interactions. Fine control of
the doping levels and thickness of fulleride films makes it possible
to tune relevant parameters.
Olle Gunnarsson
doi:10.1038/nmat2135
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYn0EE
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PROGRESS ARTICLE
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MOLECULAR SPINTRONICS USING SINGLE-MOLECULE MAGNETS pp179 - 186
Molecular spintronicsTheoretical work has highlighted the potential
of using devices in which spin-polarized carries are injected in
single molecular magnets, and a few experiments have shown promising
results. The challenges are great, but the advantages compared with
more conventional strategies may be considerable, and future
research promises to be intriguing and rewarding.
Lapo Bogani and Wolfgang Wernsdorfer
doi:10.1038/nmat2133
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYo0EF
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYp0EG
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LETTERS
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MORPHOLOGICAL CLUES TO WET GRANULAR PILE STABILITY pp189 - 193
Mixing granular materials such as sand with a liquid leads to
stiffening, but the mechanical properties are surprisingly
independent of the amount of liquid. This phenomenon is shown to
result from the particular organization of the liquid into open
structures within the granular pile.
M. Scheel et al.
doi:10.1038/nmat2117
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYq0EH
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYr0EI
TUNING FULLERIDE ELECTRONIC STRUCTURE AND MOLECULAR ORDERING VIA
VARIABLE LAYER INDEX pp194 - 197
Yayu Wang et al.
doi:10.1038/nmat2100
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYs0EJ
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYt0EK
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ARTICLES
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COLLAPSE OF MAGNETIC MOMENT DRIVES THE MOTT TRANSITION IN MnO
pp198 - 202
The precise mechanism of the insulator-to-metal transition in MnO
has been unravelled by a computational approach that shows that the
transition is a result of the simultaneous collapse of the magnetic
moment.
Jan Kunes et al.
doi:10.1038/nmat2115
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYu0EL
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYv0EM
ZERO-FIELD OPTICAL MANIPULATION OF MAGNETIC IONS IN SEMICONDUCTORS
pp203 - 208
Controlling and monitoring individual spins is desirable for building
spin-based devices. The optical manipulation of the spin of manganese
ions in gallium arsenide is now possible. The spins of a small number
of ions can be oriented by selecting the polarization of a laser
beam. Reduction of the ion concentration enables control of single
manganese spins.
R. C. Myers et al.
doi:10.1038/nmat2123
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYw0EN
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYx0EO
DIRECT IMAGING OF THE SPATIAL AND ENERGY DISTRIBUTION OF NUCLEATION
CENTRES IN FERROELECTRIC MATERIALS pp209 - 215
Stephen Jesse et al.
doi:10.1038/nmat2114
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYy0EP
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoYz0EQ
CONTACT-INDUCED CRYSTALLINITY FOR HIGH-PERFORMANCE SOLUBLE
ACENE-BASED TRANSISTORS AND CIRCUITS pp216 - 221
Crystallization of acenes into high-mobility structures for
transistors is achieved by pretreating the substrate in the region
where crystallization is required. Cross-talk is prevented between
devices by the amorphous material produced on the untreated region.
D. J. Gundlach et al.
doi:10.1038/nmat2122
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY10ED
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY20EE
DIRECT ACCESS TO THERMALLY STABLE AND HIGHLY CRYSTALLINE MESOPOROUS
TRANSITION-METAL OXIDES WITH UNIFORM PORES pp222 - 228
Jinwoo Lee et al.
doi:10.1038/nmat2111
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY30EF
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY40EG
MECHANICAL GAS CAPTURE AND RELEASE IN A NETWORK SOLID VIA MULTIPLE
SINGLE-CRYSTALLINE TRANSFORMATIONS pp229 - 235
Brett D. Chandler et al.
doi:10.1038/nmat2101
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY50EH
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY60EI
SILVER-NANOPARTICLE-EMBEDDED ANTIMICROBIAL PAINTS BASED ON VEGETABLE
OIL pp236 - 241
Ashavani Kumar, Praveen Kumar Vemula, Pulickel M. Ajayan and George John
doi:10.1038/nmat2099
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY70EJ
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoY80EK
WRAP-BAKE-PEEL PROCESS FOR NANOSTRUCTURAL TRANSFORMATION FROM
[BETA]-FEOOH NANORODS TO BIOCOMPATIBLE IRON OXIDE NANOCAPSULES
pp242 - 247
A three-step synthetic method that involves silica coating, heat
treatment and removal of the silica layer is reported for the
preparation of hollow iron oxide nanocapsules. The magnetite
nanocapsules made by this simple wrap-bake-peel process show
potential as drug-delivery vehicles and MRI contrast agents.
Yuanzhe Piao et al.
doi:10.1038/nmat2118
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoZA0EU
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoZB0EV
BIOFUNCTIONAL POLYMER NANOPARTICLES FOR INTRA-ARTICULAR TARGETING AND
RETENTION IN CARTILAGE pp248 - 254
The extracellular matrix of dense, avascular tissues presents a
barrier to polymer-based therapeutics, such as drugs encapsulated
within polymeric particles. Jeffrey Hubbell and colleagues now show
that biomolecular binding of sufficiently small polymer nanoparticles
can transform the matrix of cartilage tissue from a barrier into a
reservoir, considerably improving the bioavailability of drugs in the
matrix.
Dominique A. Rothenfluh, Harry Bermudez, Conlin P. O'Neil and
Jeffrey A. Hubbell
doi:10.1038/nmat2116
Abstract: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoZC0EW
Article: http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoZD0EX
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Nature Milestones in Spin
http://ealerts.nature.com/cgi-bin24/DM/y/ejN60Xztnp0HjS0BoZE0EY
Presented by Nature Physics this supplement focuses on the concept
of 'spin' - the idea that elementary particles possess intrinsic
angular momentum. The history of spin is a rich one, having an impact
on chemistry and biology, and culminating in ground-breaking
technologies, such as 'spintronics'.
Read the content free online for 6 months or order your free print
copy via the link below.
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Produced with support from Organic Spintronics
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