
Latest News
It Heals and Grows Together
Polymer with amazing self-healing properties.
Sooner or later, a cut to the skin or a broken bone will heal on its own; however, a scratch to a car’s paint or a tear in the wing of an airplane will not. Materials with self-healing properties could help extend the durability of products and make repairs easier. Krzysztof Matyjaszewski and his co-workers at Carnegie Mellon University (Pittsburgh, USA) and Kyushu University (Japan) have now developed a polymer that can repair itself when irradiated with UV light—over and over again. As the scientists report in the journal Angewandte Chemie, this is the first material in which capped covalent bonds repeatedly reattach, even allowing fully separated pieces to be fused back together.
Read more.
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49/2010
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It Heals and Grows Together
Polymer with amazing self-healing properties (PDF)
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Repeatable Photoinduced Self-Healing of Covalently Cross-Linked Polymers through Reshuffling of Trithiocarbonate Units
Krzysztof Matyjaszewski, Carnegie Mellon University, Pittsburgh (USA)
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48/2010
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From Molecule to Object
Largest synthetic structure with molecular precision (PDF)
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The Largest Synthetic Structure with Molecular Precision: Towards a Molecular Object
A. Dieter Schlüter, ETH Zürich (Switzerland)
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47/2010
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T-Shirt Replaces Battery
Fiber-based electrochemical micro-supercapacitor (PDF)
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Fiber Supercapacitors Made of Nanowire-Fiber Hybrid Structures for Wearable/Flexible Energy Storage
Zhong Lin Wang, Georgia Institute of Technology, Atlanta (USA)
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46/2010
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Tracking Carbonic Acid
Carbonic acid: now isolated in the gas phase and examined spectroscopically (PDF)
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Spectroscopic Observation of Matrix-Isolated Carbonic Acid
Hinrich Grothe, Technische Universität Wien (Austria)
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45/2010
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Mussel Adhesive for DNA Chips
Easy universal DNA immobilization on surfaces with a synthetic mussel polymer (PDF)
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Facile DNA Immobilization on Surfaces through Catecholamine Polymer
Phillip B. Messersmith, Northwestern University, Evanston (USA)
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44/2010
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This Way and That
Alternating stacks of planar cations and planar dipyrrole-containing anions provides concept for formation of new materials (PDF)
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Oriented Salts: Dimension-Controlled Assemblies from Planar Receptor-Anion Complexes
Hiromitsu Maeda, Ritsumeikan University, Kusatsu (Japan)
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43/2010
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Writing with a Nanoquill
Dip-pen nanolithography with a porous tip generates nanopatterns with viruses (PDF)
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Polymer-Coated Tips for Patterning of Viruses by Dip-Pen Nanolithography
Jung-Hyurk Lim, Chungju National University (Rep. Korea)
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42/2010
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DNA Weaving
Two-dimensional crystals from DNA origami tiles (PDF)
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Crystalline Two-Dimensional DNA Origami Arrays
Nadrian C. Seeman, New York University (USA)
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41/2010
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Flares on the Move
Nanoparticle test kit shows how nanoparticles of different size disperse in tumor tissue (PDF)
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A Nanoparticle Size Series for In Vivo Fluorescence Imaging
Moungi G. Bawendi, Daniel G. Nocera, Massachusetts Institute of Technology, Cambridge (USA)
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40/2010
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All Sprayed at Once
Ultrathin coatings made through simultaneous spraying of interacting substances (PDF)
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Spray-On Organic/Inorganic Films: A General Method for the Formation of Ultrathin Coatings
Gero Decher, Institut Charles Sadron, Strasbourg (France)
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39/2010
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All the Same Size
Assembly of uniformly pure protein microparticles using calcium carbonate templates (PDF)
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Pure Protein Microspheres by Calcium Carbonate Templating
Dmitry V. Volodkin, Technische Universität Berlin (Germany)
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38/2010
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Saving Platinum
Monolayer of platinum atoms on a tungsten carbide support catalyzes the electrolytic production of hydrogen effectively and cheaply (PDF)
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Low-Cost Hydrogen-Evolution Catalysts Based on Monolayer Platinum on Tungsten Monocarbide Substrates
Jingguang G. Chen, University of Delaware, Newark (USA)
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37/2010
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Embedded Rods
Chitin-silicon dioxide nanocomposite made by self-organization and sol-gel chemistry (PDF)
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Chitin–Silica Nanocomposites by Self-Assembly
Emmanuel Belamie, Institut Charles Gerhardt, Montpellier (France)
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36/2010
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Bio Meets Nano
Quantum dots as light antennas for artificial photosynthetic systems (PDF)
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Fluorescent Quantum Dots as Artificial Antennas for Enhanced Light Harvesting and Energy Transfer to Photosynthetic Reaction Centers
Igor Nabiev, CIC NanoGUNE Consolider San Sebastian (Spain)
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35/2010
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Solid Spheres
Nanospheres made of aromatic amino acids: The most rigid organic nanostructures to date (PDF)
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Self-Assembled Organic Nanostructures with Metallic-Like Stiffness
Ehud Gazit, Tel Aviv University (Israel)
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34/2010
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Renewable and Clean
New kind of fuel cell delivers energy and fine chemicals with no waste from renewable raw materials (PDF)
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A Biologically Inspired Organometallic Fuel Cell (OMFC) That Converts Renewable Alcohols into Energy and Chemicals
Hansjörg Grützmacher, ETH Zürich (Switzerland)
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33/2010
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Sniffer Dog on a Chip
Highly sensitive TNT detection with nanowires (PDF)
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Supersensitive Detection of Explosives by Silicon Nanowire Arrays
Fernando Patolsky, Tel Aviv University (Israel)
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32/2010
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Platinum and Light together Fight Cancer
For tumor treatment with few side effects: platinum complex initiates cytotoxic effect upon targeted irradiation with visible light (PDF)
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A Potent Trans-Diimine Platinum Anticancer Complex Photoactivated by Visible Light
Peter J. Sadler, University of Warwick (UK)
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31/2010
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A Closer Look at Ring Opening
Electron diffraction studies of photoswitchable molecules (PDF)
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Direct Determination of Conformations of Photoswitchable Molecules by Laser Desorption–Electron Diffraction
Ahmed H. Zewail, California Institute of Technology, Pasadena (USA)
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30/2010
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Invisibility Cloak Needed for Cooperation?
Unusual lipopolysaccharide enables symbiosis between bacterium and fungus (PDF)
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An Unusual Galactofuranose Lipopolysaccharide That Ensures the Intracellular Survival of Toxin-Producing Bacteria in Their Fungal Host
Christian Hertweck, Leibniz-Institut für Naturstoff-Forschung und Infektionsbiologie, HKI
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29/2010
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Edible Gas Storage
Porous metal–organic framework made from food-grade natural products (PDF)
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Metal-Organic Frameworks from Edible Natural Products
J. Fraser Stoddart, Northwestern University, Evanston (USA)
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28/2010
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Microscopic Firewalls
Robust foils of synthetic nacre analogues act as a heat shield (PDF)
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Supramolecular Control of Stiffness and Strength in Lightweight High-Performance Nacre-Mimetic Paper with Fire-Shielding Properties
Andreas Walther, Aalto University, Helsinki (Finland)
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27/2010
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Sugar Battles Oil Spills
Gelators based on natural sugar compounds bind oil on water surfaces (PDF)
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Sugar-Derived Phase-Selective Molecular Gelators as Model Solidifiers for Oil Spills
George John, City College of New York (USA)
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26/2010
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Mona Lisa’s Secret
X-ray fluorescence spectroscopy unveils Da Vinci’s astounding sfumato technique (PDF)
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Revealing the sfumato Technique of Leonardo da Vinci by X-Ray Fluorescence Spectroscopy
Philippe Walter, Centre de Recherche et de Restauration des Musées de France, Paris (France)
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25/2010
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Electrodes Reveal Tumors
Direct potentiometric determination of the sialic acid concentration on cell surfaces—a new technique for tumor diagnosis? (PDF)
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Assessment of Tumor Metastasis by the Direct Determination of Cell-Membrane Sialic Acid Expression
Yuji Miyahara, University of Tokyo (Japan)
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24/2010
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Secret Revealed
The crystal structure of ribose—finally! (PDF)
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The Crystal Structure of D-Ribose—At Last!
Jack D. Dunitz, Swiss Federal Institute of Technology (ETH) Zurich (Switzerland)
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23/2010
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Colorful Warning
Selective, sensitive CO detection with a rhodium complex (PDF)
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Sensitive and Selective Chromogenic Sensing of Carbon Monoxide using Binuclear Rhodium Complexes
Ramón Martínez-Máñez, Universidad de Valencia (Spain)
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22/2010
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Don’t Compare Bananas to Pears
Unique blue fluorescent chlorophyll decomposition products in banana leaves (PDF)
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Hypermodified Fluorescent Chlorophyll Catabolites: Source of Blue Luminescence in Senescent Leaves
Bernhard Kräutler, Universität Innsbruck (Austria)
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21/2010
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Long Fuse
Communication through chemistry: “Fuses” convey information for hours (PDF)
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Long-Duration Transmission of Information with Infofuses
George M. Whitesides, Harvard University, Cambridge (USA)
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20/2010
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Layered Footballs
First two-dimensional organic metal made of fullerenes (PDF)
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A Two-Dimensional Organic Metal Based on Fullerene
Dimitri Konarev, Russian Academy of Science, Moscow (Russia)
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19/2010
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Small But Super
Lightweight, handy magnets for portable NMR spectrometers (PDF)
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Small Magnets for Portable NMR Spectrometers
Federico Casanova, RWTH Aachen (Germany)
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18/2010
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Art Seals Reveal Their Secrets
Imaging mass spectrometry for analyzing art works (PDF)
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Imaging Mass Spectrometry with a Low-Temperature Plasma Probe for the Analysis of Works of Art
Sichun Zhang, Tsinghua University, Beijing (China)
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17/2010
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Wood in the Tank
Valeric fuels: a new generation of biogasoline and biodiesel from lignocellulose (PDF)
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Valeric Biofuels: A Platform of Cellulosic Transportation Fuels
Jean-Paul Lange, Shell Global Solutions International B.V., Amsterdam (The Netherlands)
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16/2010
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Death by Arsenic
Hair analysis proves it: Legendary racehorse Phar Lap died of arsenic poisoning in 1932 (PDF)
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Synchrotron Radiation Reveals Arsenic Poisoning and Metabolism in Hair: The Case of Phar Lap
Ivan M. Kempson, Academia Sinica, Taipei (Taiwan)
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15/2010
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An Odd Couple
Photoluminescent liquid crystals based on metal clusters (PDF)
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Clustomesogens: Liquid Crystal Materials Containing Transition-Metal Clusters
Yann Molard, Université de Rennes 1 (France)
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14/2010
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Biting its Own Tail
Nanocontainer with an integrated switch (PDF)
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The Ouroborand: A Cavitand with a Coordination-Driven Switching Device
Julius Rebek, Jr., Scripps Research Institute, La Jolla (USA)
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13/2010
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Expanded Blueprint
Genetic incorporation of two different noncanonic amino acids into one protein (PDF)
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A Facile System for Genetic Incorporation of Two Different Noncanonical Amino Acids into One Protein in Escherichia coli
Wenshe Liu, Texas A&M University, College Station (USA)
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12/2010
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Plastic Money
Australia’s plastic bills make life difficult for counterfeiters (PDF)
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Australia's Plastic Banknotes: Fighting Counterfeit Currency
David H. Solomon, University of Melbourne (Australia)
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11/2010
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Vaccine With No Jab
Protein vaccines for needle-free immunization through the skin (PDF)
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Synthetic Skin-Permeable Proteins Enabling Needleless Immunization
Victor C. Yang, University of Michigan, Ann Arbor (USA)
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10/2010
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More Power, Longer Life, Increased Safety
Tin–sulfur–lithium-ion battery as alternative to conventional lithium batteries (PDF)
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A High-Performance Polymer Tin Sulfur Lithium Ion Battery
Bruno Scrosati, Università degli Studi di Roma La Sapienza, Roma (Italy)
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09/2010
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Effective Imitation
New chitinase inhibitors (PDF)
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Chitinase Inhibition by Chitobiose and Chitotriose Thiazolines
Stephen G. Withers, University of British Columbia, Vancouver (Canada)
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08/2010
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Compound from Myrtles Synthesized
Successful total synthesis of myrtucommulone A (PDF)
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Total Synthesis of Myrtucommulone A
Johann Jauch, Universität des Saarlandes, Saarbrücken (Germany)
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07/2010
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Scent of a Spider
Sex pheromone of the wasp spider identified (PDF)
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The Sex Pheromone of the Wasp Spider Argiope bruennichi
Stefan Schulz, Technische Universität Braunschweig (Germany)
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06/2010
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Switched Off
Sensitive, selective, and resolved in time and space: ATP detection in living cells with carbon nanotubes and luciferase (PDF)
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A Luciferase/Single-walled Carbon Nanotube Conjugate for Near-Infrared Fluorescent Detection of Cellular ATP
Michael S. Strano, Massachusetts Institute of Technology, Cambridge (USA)
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05/2010
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Energy from Light and Water
New photocatalytic method for the clean production of hydrogen from water (PDF)
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Water Splitting by Visible Light: A Nanophotocathode for Hydrogen Production
Thomas Nann, University of East Anglia, Norwich (UK)
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04/2010
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Incorrectly Folded Fibers
Flash frozen under the electron microscope: examining the mechanical properties of Alzheimer’s amyloid fibrils (PDF)
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Nanoscale Flexibility Parameters of Alzheimer Amyloid Fibrils Determined by Electron Cryo-Microscopy
Marcus Fändrich, Max Planck Research Unit for Enzymology of Protein Folding, Halle (Germany)
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03/2010
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Golden Pairs
Catalytic dimers of gold atoms make ethylene from methane (PDF)
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Methane Activation and Catalytic Ethylene Formation on Free Au2+ Ions
Thorsten M. Bernhardt, Universität Ulm (Germany)
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02/2010
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All Smoothed Out
Hydroxyl radicals remove nanoscopic irregularities on polished gold surfaces (PDF)
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Hydroxyl Radicals Attack Metallic Gold
Fritz Scholz, Universität Greifswald (Germany)
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01/2010
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3D View of the Brain
Viewing spatial distribution of biomolecules in substructures of mouse brains by mass spectrometry (PDF)
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Three-Dimensional Vizualization of Mouse Brain by Lipid Analysis Using Ambient Ionization Mass Spectrometry
R. Graham Cooks, Purdue University, West Lafayette (USA)
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