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Chemistry World February 18, 2009 Lewis Brindley |
Nanomaterials Blossom US researchers have found a new way to use magnetic fields to encourage nanoparticles to self-assemble into unique shapes.  |
Reactive Reports Issue 67 David Bradley |
Attractive Changing Colors Chemists have discovered that a simple magnet can be used to change the color of nanoparticles of iron oxide in aqueous suspension.  |
Technology Research News December 11, 2002 Eric Smalley |
Microscopic mix strengthens magnet Magnets are usually an either-or proposition. They either generate a strong magnetic field or they hold up well in the presence of external magnetic fields. A method that mixes the two types of magnets at the nanoscale could pave the way for smaller electric motors and generators.  |
Chemistry World July 13, 2007 Tom Westgate |
Colourful Colloids A simple mixture of iron oxide, a polymer and water can take on any color simply by applying a magnetic field.  |
Technology Research News December 1, 2004 |
Smart Dust Gets Magnetic One of the main challenges in making labs-on-a-chip is finding ways to control and mix tiny amounts of liquids. Researchers are using minuscule silicon particles to carry out these tasks.  |
Chemistry World February 28, 2006 Jon Evans |
Magnetic Appeal of Shape-Change Polymer Polymer scientists developed polymers that change shape in response to a magnetic field by incorporating magnetic iron(III)oxide nanoparticles into a shape-memory polyetherurethane compound known as TFX.  |
Chemistry World December 22, 2010 Patricia Pantos |
Ferrofluids help you see better US researchers have used ferrofluids as liquid pistons that could be used to make adjustable liquid lenses with nearly perfect spherical interfaces for applications such as an optometrist's phoropter.  |
Technology Research News February 23, 2005 |
Metal atoms make silicon magnetic Devices made from magnetic semiconductors can make use of the spin of the electron in addition to its charge. These spintronics devices are potentially faster and consume less power than today' electronics.  |
Chemistry World July 17, 2012 Harriet Brewerton |
Pinning down cancer US scientists have synthesized pin-shaped nanoparticles with magnetic and optical properties. The nanoparticles could be used for magnetic resonance imaging, early detection and photothermal therapy of cancer and other diseases.  |
Chemistry World July 21, 2011 Serin Dabb |
Small Wires Swim Through Serum for Drug Delivery US researchers have made nanowires that can be propelled through liquids with an external magnetic field. The wires could be used to deliver drugs in the human body.  |
Technology Research News July 13, 2005 |
Magnetics Drives Particle Patterns Researchers have devised a way to use electric and magnetic fields to assemble magnetic microparticles into a wide variety of patterns, including clusters, rings, chains and networks.  |
Technology Research News January 28, 2004 |
Nanorings promise big memory Researchers have found a way to cause magnetic cobalt nanoparticles to spontaneously assemble into rings that are less than 100 nanometers across. Because the molecule is small, memory made from it could hold a great deal of information.  |
Chemistry World October 7, 2012 David Bradley |
Magnetic nanoparticles zap cancer Nanoparticles can be used as a remote-controlled magnetic death switch to kill cancer cells, according to researchers from Korea.  |
Technology Research News April 21, 2004 |
Magnets Align Nanotubes in Resin Carbon nanotubes have great potential as components of new materials but aligning the tiny tubes can be tricky. Researchers from the Georgia Institute of Technology and Florida State University have developed a way to orient the nanotubes in a polymer mix using a magnetic field.  |
Chemistry World December 10, 2007 Killugudi Jayaraman |
Scientists Trap Light in Nano-Soup Physicists in India, have demonstrated how to trap and retrieve light using a soup of micro- and nano-sized magnetic spheres.  |
Chemistry World November 9, 2009 Lewis Brindley |
Microscopic springs made from nanotube composite Researchers in the US have developed a way to rapidly make tiny 3D objects out of a carbon nanotube-enriched polymer, using UV light to quickly set the structure in place.  |
Chemistry World October 25, 2013 James Urquhart |
Water droplets warped into weird shapes US scientists have discovered that self-assembling nanoparticles can lock water droplets into different shapes. The team suggests the work could be useful for several applications including microfluidic devices, sensors and drug delivery.  |
Chemistry World October 2, 2012 Fiona McKenzie |
Protein sorting within cells US scientists have used magnetic nanoparticles with specific ligands to latch on to and visualize specific proteins in living cells.  |
Chemistry World January 12, 2012 Simon Hadlington |
Composites Reinforced in 3D A method that uses magnetic fields to align tiny structural elements within a polymer matrix has been developed by scientists in Switzerland.  |
Technology Research News August 11, 2004 |
Pen writes micro wires Researchers have devised a way to write stripes of gold onto glass to produce microscopic wires. The method could eventually be used to manufacture conductors for tiny electronic devices.  |
Chemistry World July 20, 2012 Simon Hadlington |
New type of chemical bond around dwarf stars The work, led by Trygve Helgaker at the University of Oslo in Norway, not only provides insights into fundamental aspects of electronic interactions with magnetic fields, but also sheds light on the exotic chemistry that exists in stellar environments.  |
Reactive Reports December 2003 David Bradley |
Airy magnets Spanish researchers have created a new type of magnetic material that is ultra-light and transparent. The airy magnets could have applications in flat screen displays and magneto-optical memory devices for computers.  |
Chemistry World July 25, 2014 Emma Stoye |
Magnetic nanocubes self-assemble into spirals Scientists have been coaxing nano-sized cubes of magnetite (Fe 3O 4) into larger, more complex structures like helices without using a template by exposing them to a magnetic field.  |
Chemistry World September 2, 2007 Lewis Brindley |
Nanoparticles Paint a Finer Picture Swiss scientists have developed a process that can print detailed images using nanoparticles as 'ink', while maintaining their catalytic and optical properties.  |
Technology Research News July 16, 2003 |
Jolts mix micro fluids Researchers from the New Jersey Institute of Technology have shown that it is possible to mix small amounts of liquids more quickly by pulsing the flow rates of the liquids through the channels in such a way that the pulse rates of the two liquids are out of phase.  |
IEEE Spectrum September 2007 Joshua J. Romero |
Magnetic Storage Taken to the Atomic Scale International team of scientists learns to read and write data on islands of atoms.  |
Technology Research News October 22, 2003 |
Process prints nanoparticles Researchers have coaxed tiny particles of gold, silver and carbon to assemble into patterns on silicon wafers over areas as large as a square centimeter by using electrical charge patterns to attract and position the nanoparticles.  |
Technology Research News November 3, 2004 |
Square Rings Promise Reliable MRAM Researchers are working on magnetic random access memory chips that hold as much data as standard electronic memory chips. The key to a promising design is a nanowire bent into a circle.  |
Chemistry World April 7, 2009 Lewis Brindley |
Cells get in line Magnetic nanoparticles that 'shepherd' cells into neat lines have been designed by American scientists.  |
Chemistry World March 26, 2007 Victoria Gill |
World's Smallest Bowl of 'Alphabet Soup' A fluorescent alphabet soup cooked up by US researchers has demonstrated the ability of a new technique to mass-produce complex shapes on the micro and even nanoscale.  |
Chemistry World October 19, 2009 Lewis Brindley |
Nanoparticles brought to order US researchers have developed a process that could bring the unusual properties of nanoparticles to a larger scale, by using small molecules to evenly space nanoparticles in a polymer composite.  |
Chemistry World August 23, 2010 Lewis Brindley |
Microscopic barcodes with extra stirring A way to label molecules with colourful barcodes has been developed by chemists in South Korea.  |
Chemistry World March 6, 2006 Jon Evans |
Nanoprobes Light up Cellular Demolition Researchers have developed a method for detecting and imaging programmed cell death (apoptosis). The method, involving polymer nanoparticles, could be used to diagnose apoptosis-related diseases and inform drug development.  |
Chemistry World August 3, 2010 Lewis Brindley |
Nanoparticles and ultrasound team up to treat tumors A new, non-invasive method to deliver drugs to the brain has been developed by Taiwanese researchers.  |
Technology Research News October 17, 2005 |
Data storage technologies Today's magnetic disk drives could be improved by incorporating much larger magnetoresistance or replaced by microelectromechanical systems (MEMS), near-field optics, holographic systems, or even molecules for better data storage solutions.  |
Geotimes May 2004 Sara Pratt |
Deciphering Planetary Magnetism Neptune and Uranus both have unusual magnetic fields that tilt at a 60-degree angle toward their equators. Scientists are now able to model the processes that shape the planets' magnetism.  |
Technology Research News July 2, 2003 |
Material helps bits beat heat Researchers have discovered a way to shore up magnetic energy that promises bits only a few nanometers across -- the span of a few dozen hydrogen atoms. The method could make it possible to store more than a trillion bits per square inch, according to the researchers.  |
Chemistry World July 25, 2013 Rowan Frame |
Nanomagnets clean blood Nanoparticles that never have to enter the body can capture harmful components in blood, scientists in Switzerland have shown.  |
Technology Research News January 1, 2003 Kimberly Patch |
Aligned fields could speed storage Researchers from three institutes in Germany and Russia have found a material whose electric and magnetic domains line up together. The work could bring together the currently separate fields of magnetic and electronic data storage, which would give both methods more flexibility.  |
Chemistry World July 20, 2011 Josh Howgego |
Magnets turn up the heat on tumours Claims that magnets can cure cancer might sound like quackery. But French researchers have harnessed iron oxide structures from bacteria to selectively kill tumour cells using an alternating magnetic field.  |
Chemistry World March 16, 2009 Hayley Birch |
Nanodumbbells Target Cancer Cells US scientists have designed nanoparticles that function like 'guided missiles' in the targeted destruction of breast cancer cells.  |
Technology Research News March 9, 2005 |
Avalanches up Disk Storage Researchers have constructed a spin-valve transistor that is more sensitive to microscopic magnetic fields than the devices that read today's commercial hard drives.  |
Reactive Reports September 2005 David Bradley |
Nano Surprise A surprising mechanism by which polymers form nanocomposite particles could provide researchers with a new tool for controlling the growth of such materials.  |
Chemistry World May 7, 2009 Phillip Broadwith |
Polymers release insulin in response to glucose trigger Chinese researchers have developed polymer nanoparticles that can release insulin in response to changes in glucose concentration, creating a potential treatment for diabetes.  |
Chemistry World July 19, 2011 Jon Cartwright |
Magnetic Sponge Can Squeeze Itself Out Researchers in Japan and Singapore have created a sponge that can wring itself out upon application of a magnetic field.  |
Chemistry World March 20, 2014 James Urquhart |
Nanoparticle composites make colorful magnetic crystals Incorporating nanoparticles into single crystal materials can imbue them with new properties, such as color and magnetism, thanks to gel crystallization techniques developed independently by UK and Chinese research groups.  |
Technology Research News November 19, 2003 |
Model leverages nano tethers Researchers from the University of Michigan have shown in computer simulations that it is possible to cause structures like sheets, wires and tubes to spontaneously assemble by starting with nanoparticles that have long, tether-like molecules attached, then causing the tethers and nanoparticles to part.  |
Industrial Physicist Aug/Sep 2003 Eric J. Lerner |
Briefs A magnetic microscope for the brain... Spin and energy -- free?... Finest nanowire arrays... Solar-cell burnout... etc.  |
Technology Research News July 30, 2003 |
See-through magnets hang tough Researchers from the Independent University of Barcelona (UAB) and the University of Zaragoza in Spain have found a way to form transparent, durable, lightweight magnets that maintain their magnetism in magnetic fields and high temperatures.  |
Chemistry World June 27, 2010 Simon Hadlington |
Nanoparticles allow remote control of cells In an experiment reminiscent of the mind-control rays that featured prominently in B-movies from the 1950s, scientists in the US have used a magnetic field to alter the behavior of an animal.  |