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Technology Research News August 13, 2003 |
Molecule makes ring rotor Researchers from the University of Edinburgh in Scotland have interlocked large, ring-shaped molecules to make a molecular rotor that moves in only one direction. The molecule could eventually be used as a nanoscale motor or winch. |
Chemistry World October 26, 2012 Andy Extance |
Molecular muscle machines bulk up French researchers have made the longest molecular machines that can be shrunk on demand in a collective motion that emulate muscle fibers. |
Chemistry World April 19, 2012 Simon Hadlington |
Controlling an organocatalyst with pH UK chemists have designed an organocatalyst that can be mechanically switched on and off simply by changing the pH. |
Chemistry World February 8, 2006 Jon Evans |
To Boldly go Where no Chemist Has Gone Before Studying the interactions between different molecular fragments is taking researchers to the uncharted regions of chemical space. |
Chemistry World October 5, 2006 Victoria Gill |
Polymer Chemists Tap the Body's Organs The strained tendons and ligaments that end many sporting careers could be repaired with polymers made from our own digestive chemicals. Researchers have devised a chemical method to make degradable elastomers -- polymers with elastic properties -- using bile acid. |
Reactive Reports Issue 33 David Bradley |
The Miniature Rotarians Tiny interlocking wheels are the components of a miniscule molecular rotor designed and built by UK chemists. The submicroscopic invention offers a new motor-like component for those hoping to build nanotechnology from the bottom up. |
Reactive Reports Issue 63 David Bradley |
Chemists Go Round the Bend Chemists often think of molecular wires as "shape-persistent" rods with limited flexibility, but researchers have now shown that molecular wires can be bent into ring shapes. |
Chemistry World March 21, 2007 Richard Van Noorden |
Forcing a Reaction US chemists have forced molecules to react by ripping their bonds apart with ultrasound. The scientists carefully stretched one targeted bond until it snapped, guiding the molecule's subsequent reaction into pathways forbidden by conventional chemistry. |
Technology Research News December 29, 2004 |
Molecular Motor Goes Both Ways Researchers have constructed a molecular motor that can spin in either direction, much like the biological molecular motors involved in many of life's processes. The motor could eventually be used in nanotechnology applications. |
Chemistry World August 22, 2011 Jon Cartwright |
Manmade molecular machine goes to work Manmade molecules can generate similar forces to natural molecular machines, and could help chemists to design artificial molecular machines for meaningful tasks. |
Chemistry World October 2009 |
Column: In the pipeline Derek Lowe discusses the problem of leaning too heavily on favorite reactions |
Chemistry World May 21, 2015 Simon Hadlington |
Molecular pump points way to non-equilibrium chemistry Researchers in the US have developed an artificial molecular pump which can accumulate small, highly charged molecules against a concentration gradient. |
Chemistry World April 28, 2009 Jon Cartwright |
Metal ions give rise to threaded molecules Chemists in France have developed a simple method to synthesize tricky '[3]rotaxane' molecules for potential applications in intelligent materials and molecular machines. |
Chemistry World March 9, 2006 Katharine Sanderson |
Covalent Bonds Crack Under the Strain Chemists must consider engineering principles when designing molecules following news that tough carbon-to-carbon bonds break easily under mechanical strain. |
Chemistry World March 9, 2007 Michael Gross |
Nanowires go Round the Bend Chemists have bent an apparently linear molecular wire into a closed circle, creating a conducting ring just 3 nanometers across. |
Chemistry World April 28, 2011 Simon Hadlington |
New method for aromatic coupling Chemists in Switzerland have developed a way to couple aromatic rings through the Friedel-Crafts mechanism - something many people would have believed impossible. |
Chemistry World March 14, 2012 James Urquhart |
Catalysis at the flick of a switch German researchers have created a molecular nanoswitch that can be reversibly and repeatedly turned on and off to control a chemical reaction. |
Chemistry World January 10, 2013 Laura Howes |
Rotaxane mimics ribosome to spin out peptides The field of molecular machines has taken a new bio-inspired turn to assemble another molecule, in this case linking up individual amino acids into a peptide. |
Chemistry World February 9, 2012 Laura Howes |
Polyrotaxanes zip themselves up Received wisdom tells us that taking 39 chemical components and assembling them into one molecule will only be possible with low yields thanks to entropy. But scientists have managed this with yields of 90%. |
Chemistry World September 15, 2011 James Mitchell Crow |
Polymer Side Chains on the Slide Researchers may now be able to create rotaxane polymers whose properties alter in response to chemical stimuli. |
Chemistry World June 16, 2010 Simon Hadlington |
Rotaxane molecule seen in action Researchers from the US and Japan have directly observed the ring of a rotaxane molecule shuttling along its spindle. The behaviour of the rotaxane is influenced by its molecular environment, something that is significant if the molecules are to be used as molecular machines. |
Chemistry World January 31, 2007 Lionel Milgrom |
Demon Ratchets up Nanotech Revolution Inspired by a 140-year-old conundrum, chemists have created a nanomachine that works like a ratchet, transporting molecules in only one direction. |
Chemistry World January 29, 2015 Emma Stoye |
Chemistry Nobel laureate Yves Chauvin dies aged 84 Chauvin received the prize for his contribution to organic synthesis, providing a detailed mechanism for how metathesis reactions are catalyzed. |
Chemistry World January 4, 2007 Richard Van Noorden |
Knighthood for Services to Chemistry Fraser Stoddart, director of the California NanoSystems Institute and professor of NanoSystems Sciences at the University of California, has been appointed a Knight Bachelor for his services to chemistry and molecular nanotechnology. |
Chemistry World January 31, 2010 Simon Hadlington |
Ketene comes in from the cold The ketene group, -C=C=O, is capable of rich and diverse chemistry, says Craig Hawker of the University of California, Santa Barbara |
Chemistry World January 2010 Philip Ball |
Welcome to the machine Molecular machines have promised so much but are they more whimsical than technical? |
Chemistry World July 15, 2011 Laura Howes |
Cyclodextrin Dimer Becomes Synthetic Polymerase Chemists have made an artificial polymerase that doesn't need a metal catalyst or organic solvents and is more efficient than current bioinspired approaches. |
Chemistry World May 4, 2010 Lewis Brindley |
Nanomachinery gets a spring in its step Molecular springs that always twist the same way are the latest addition to the nanomachinery toolbox. |
Chemistry World September 5, 2011 David Bradley |
Spiders, Grubbs' and polymer-powered nanomotors A chemical spider that spins a polymer thread using a simple catalyst could drive a nanomotor, according to researchers at Pennsylvania State University, US. |
Chemistry World October 22, 2009 Simon Hadlington |
Carbenes catalyse metal-metal bonds in organometallics Chemists in the US have discovered a novel way to transform organometallic compounds so that new metal-metal bonds are created. |
Chemistry World October 12, 2006 Richard Van Noorden |
Lasers on the Energy Ski Slope Researchers have shown that intense laser-light pulses can act as catalysts, controlling the end products of a chemical reaction without themselves being absorbed. |
Chemistry World December 6, 2007 Lewis Brindley |
Chemists Make Fullerene Necklace Spanish scientists have strung fullerene buckyballs together to produce a polymer with unique electronic properties. The creation of these polymers has demonstrated a new approach to designing novel materials. |
Chemistry World July 27, 2014 Simon Hadlington |
Propeller-shaped molecules give 2D polymers lift-off Crystal engineers have finally succeeded in achieving a goal that has eluded chemists for decades by unambiguously synthesizing two-dimensional polymer crystals, confirmed by single-crystal x-ray diffraction. |
Chemistry World March 8, 2009 Nina Notman |
Polymer Crossroads Act as Tiny Reactors Scientists in the US have taken inspiration from a Dutch painter to create ultrasmall chemical reactors at the junctions of overlapping polymer nanofibres |
Technology Research News November 17, 2004 |
Lasers Drive Nano Locomotive A researcher has designed a laser-powered molecular locomotive that runs along a molecular track and can generate a pulling force ten times greater than that of kinesin, a biological molecular motor. |
Chemistry World May 16, 2006 Katharine Sanderson |
Switching Off Polymerisation in the Dark With summer in full swing, the world of polymer science is about to get a boost following news that sunlight can kick-start living polymerisation reactions. The twist is that the reaction stops in the dark. |
Chemistry World October 11, 2009 Simon Hadlington |
Diode breakthrough in molecular electronics Researchers from the US and Russia have shown how it is possible to measure the diode properties of a single molecule and how the orientation of the molecule between two electrodes can be controlled. |
Chemistry World May 28, 2012 Simon Hadlington |
New shape for cross-linked polymers Researchers in the US and France believe they have found a new way to impart malleability into cross-linked polymers containing multiple double bonds. |
Chemistry World October 11, 2007 Jonathan Edwards |
'Tuneable' Polymer Can Separate Anything An international team of scientists have made a polymer with pores which can be fine-tuned to speedily separate different small molecules -- with applications ranging from carbon capture to fuel cells. |
Chemistry World June 1, 2010 Simon Hadlington |
Structural order gained over conducting polymer Scientists in Canada and the US have shown how it is possible to assemble ordered arrays of short chains of a commercially important conducting polymer on a metal surface. |
Reactive Reports November 2005 David Bradley |
Peter Murray-Rust An interview with the scientific software developer, originally a crystallographer with a DPhil from Oxford, on how he is now helping to establish novel software and Web technologies for chemists and other scientists underpinned by the concept of open source. |
Chemistry World June 2008 Sarah Houlton |
Breaking the rules The author finds out about some chemical tricks that can give a new drug the best possible odds of success |
Chemistry World July 3, 2014 Tami Spector |
Of atoms and aesthetics Molecular aesthetics means many things to a few people. For some it means tangible aspects of compounds; for others yet, the ways that chemists represent molecules. |
Chemistry World September 8, 2015 Anthony King |
Click chemistry creates precision polymers Researchers at Massachusetts Institute of Technology have an efficient strategy that allows them to synthesize a new family of unimolecular, sequence- and stereo-defined polymers using click chemistry. |
Chemistry World January 25, 2013 Derek Lowe |
Name reactions: how does the label stick? Some of these names go back to the 19th century, and many more of them come from the first decades of the 20th. Once in a while, I wonder if the tradition is dying out. Are we still naming chemical reactions after their discoverers? |
Chemistry World March 8, 2012 David Bradley |
Light-sensitive shape-shifters are swell gels Polymer chemists have successfully emulated the natural shape-shifting abilities of biological tissues, which could allow them to develop a new range of functional materials that change shape reversibly in response to particular stimuli. |
Chemistry World May 8, 2014 |
Mandelalide A The recent synthesis of the proposed structure of mandelalide A is a good example of a well-designed route that seamlessly integrates some cutting-edge chemistry. |
Chemistry World July 27, 2012 Paul Docherty |
Marinomycin A Faced with the term 'polymer', most people would consider man-made materials, primarily plastics as typical examples. However, as in so many cases, nature was ahead of chemists, as oligomeric and polymeric materials abound in life. |
Technology Research News June 29, 2005 |
Micro marbles make nano rings Using chemical methods, researchers have found a cheaper way to make nanoscale rings. The rings can then be used to make materials to bend light. |
Chemistry World September 2009 |
Living the Nobel life In Lindau, Germany, groups of Nobel prize winners are invited to meet with a new generation of young scientists. This year was the chemists' turn and the theme of this year's event was renewable energy and climate change |