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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 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. |
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. |
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. |
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 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 January 2010 Philip Ball |
Welcome to the machine Molecular machines have promised so much but are they more whimsical than technical? |
Chemistry World April 18, 2010 Simon Hadlington |
First DNA rotaxane Rotaxanes are dumbbell-shaped molecules encircled by a molecular hoop that can move unhindered along the axle, trapped by the bulky stoppers at either end. These could be useful components in molecular machines. |
Chemistry World January 11, 2010 Hayley Birch |
Locking molecular motors Dutch scientists have designed a molecular motor that can be locked using an acid and unlocked using a base. |
Chemistry World December 21, 2009 Simon Hadlington |
'Two-legged' molecular walker takes a stroll UK chemists have designed a two-legged molecule that can walk up and down a straight molecular track. The system could form the basis for artificial linear molecular motors that can transport cargoes in a way similar to molecular machines used in nature. |
Chemistry World January 15, 2010 Andy Extance |
Quantum computer hits hydrogen bullseye A basic quantum computer has successfully tackled one of the most challenging tasks facing chemists today - calculating molecular energy from basic scientific principles. |
Chemistry World January 5, 2016 Simon Hadlington |
Molecular robot opens the way to nano-assembly lines UK chemists have devised a nanoscale robot that can grasp a cargo molecule, pick it up, place it in a new position some distance away and release it. |
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 September 26, 2013 Akshat Rathi |
First pictures of hydrogen bonds unveiled Researchers in China report the first visualization of a hydrogen bond using atomic force microscopy. |
Chemistry World August 27, 2009 Nina Notman |
Molecules in close-up A tuning-fork-like device than measures atomic forces is able to image every single atom in a molecule, according to its Swiss inventors. |
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 September 9, 2009 Lewis Brindley |
Daisy-chain polymers bring artificial muscles a step closer American chemists have made molecular 'daisy-chains' containing threaded rings that can be pulled taut or slackened by chemical stimuli. |
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 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 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 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. |
Chemistry World November 11, 2012 Simon Hadlington |
'Nano-welding' taken to the limits as specific bonds are cut and formed In a remarkable demonstration of the extreme limits of nanoscale engineering, researchers from the US and China have used the tip of a scanning tunnelling microscope to cleave and form selected chemical bonds on a complex molecule. |
Chemistry World March 25, 2013 David Bradley |
Hydrogen bond under the microscope Scientists in Japan have designed a scanning tunnelling microscope tip that allowed them to measure electron transfer across a single hydrogen bond. |
Chemistry World August 13, 2009 Simon Hadlington |
Forcing enzyme activity New research has shown that physically stretching an enzyme can trigger its activity - even when the active site is not hidden in a 'cryptic' position. Mechanical force may play a more important role in biological molecular systems than previously realized. |
Chemistry World May 12, 2011 Jon Cartwright |
'Chemical soldering' heralds single molecule electronics Scientists in Japan and Switzerland have demonstrated how to wire up single molecules with conductive nanowires. |
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 January 24, 2007 Lionel Milgrom |
Chemical Computing Creates World's Densest Data Storage Medium A vital piece of nanoelectronic circuitry has been produced which could bring molecular computers a step closer. |
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 August 1, 2010 Mike Brown |
Snapshots of mystery molecular structures Researchers have used atomic force microscopy to produce clear molecular images that can help determine the correct atomic structure of unknown organic molecules. |
Chemistry World February 21, 2008 Simon Hadlington |
Taking the Measure of Atomic Friction Scientists in the US and Germany have successfully used an atomic force microscope to determine exactly how much effort is needed to drag a single atom of cobalt across the surface of different metals. |
Chemistry World September 15, 2011 David Bradley |
Sound Approach to Unclicking Click Chemistry Ultrasound can be used to physically release a triazole from a polymer-companies. |
Chemistry World August 13, 2010 James Urquhart |
Zooming in on intermolecular bonds German researchers have captured clear images of intermolecular bonds for the first time using a modified form of scanning tunnelling microscopy. |
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. |
HHMI Bulletin February 2012 Sarah C. P. Williams |
Force Factor In the context of cells, forces are required to move molecules. Quantifying these forces gives scientists a way to compare and contrast different molecular motors. |
Chemistry World August 27, 2015 Jon Cartwright |
AFM pictures show bond polarity Researchers in Germany and the Czech Republic have improved the clarity of atomic force microscopy to probe the distribution of charges within atoms and molecules. |
Chemistry World July 13, 2015 Philip Ball |
First snapshot of elusive intermediate supplies surprise A team near Zurich in Switzerland, has been able to take a single-molecule snapshot of an intermediate in a common class of organic reactions. |
Technology Research News January 29, 2003 Kimberly Patch |
Bumpy surface stores data Cramming more data into a given storage device is all about making bits that are extremely small and consistently spaced. Using individual molecules to store bits would be a tremendous leap forward. One molecule gaining researchers' attention is rotaxane. |
Chemistry World February 28, 2012 Nina Notman |
Observing Charge Distribution in Molecules The distribution of charge across a single molecule has been imaged for the first time by Swiss scientists. It is hoped that this work may eventually lead to electronic devices consisting of organic molecules. |
Technology Research News February 26, 2003 |
DNA forms nano piston DNA is a molecule of many talents. In addition to its biological role of carrying the blueprint to life, it has performed computations and self-assembled into various shapes in the laboratory. Some of those shapes are movable, which paves the way for molecular machines. |
Chemistry World February 24, 2014 Andy Extance |
Molecular motors aim to pass water Water droplets whose shape mysteriously shifts when the surface underneath them is exposed to light could become nanotech-powered chemistry vessels. |
CIO June 1, 2003 Bob Violino |
Powerful DNA Portable computer vendors like to boast about their small and lightweight devices. But their best efforts are nothing compared with programmable molecular computing machines composed of an enzyme and DNA molecules. |
Chemistry World December 11, 2008 Hayley Birch |
Protein threading paves the way for nanomachines A team of Dutch and Italian researchers has discovered how proteins are threaded through pores in cell membranes. |
Chemistry World July 30, 2007 Lewis Brindley |
AFM Tip Feels Nano-Surfaces Scientists in the US have developed an artificial fingertip that boosts the resolution of atomic force microscopy, a technique that opens a window onto the nanoscale world. |
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 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. |
Technology Research News October 20, 2004 |
Molecules positioned on silicon Dubbed multi-step feedback control lithography, this new fabrication process could eventually be used to construct prototype molecular electronic devices for future technologies in areas like consumer electronics and biomedical diagnostics. |
Technology Research News April 21, 2004 Eric Smalley |
Molecule Makes Electric Motor Researchers have built molecules that can spin on command, but finding a way to harness this molecular motion to carry out work is more difficult. A molecule that has a limited range of motion opens up new possibilities. |
Chemistry World March 31, 2009 Lewis Brindley |
Giving molecules a stretch A simple way to stretch small molecules and measure the forces at play has been developed by researchers in the US. |
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 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. |