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Nanotechnology

News : Motion Control
Nano-Submarine Motors Powered by Light

Each of the single-molecule, 244-atom submersibles built at Rice University has a motor powered by ultraviolet light. With each full revolution, the motor’s tail-like propeller moves the sub forward 18 nanometers. And with the motors running at more than a million RPM, that translates into speed....

News : Electronics & Computers
Graphene-Based Inks Enable High-Speed Manufacturing of Printed Electronics

A low-cost, high-speed method for printing graphene inks using a conventional roll-to-roll printing process, like that used to print newspapers, could open up a wide range of practical applications, including inexpensive printed electronics, intelligent packaging, and...

News : Materials
Sponge-Like Material Soaks Up Oil Spills

In hopes of limiting the disastrous environmental effects of massive oil spills, scientists from Drexel University and Deakin University, in Australia, have teamed up to manufacture and test a new material. The boron nitride nanosheet absorbs up to 33 times its weight in oils and organic solvents — a...

News : Motion Control
Tiny Carbon-Capturing Motors Could Clean up Carbon Dioxide Pollution

Machines that are much smaller than the width of a human hair could one day help clean up carbon dioxide pollution in the oceans. Nanoengineers at the University of California, San Diego have designed enzyme-functionalized micromotors that rapidly zoom around in water, remove...

News : Motion Control
Single-Molecule Nanosubmarines Powered by Light

Rice University scientists have created light-driven, single-molecule submersibles that contain just 244 atoms. The motors of the "nanosubmarines" run at more than a million RPM, and the sub's top speed amounts to less than 1 inch per second.

News : Electronics & Computers
Nanotechnology Increases Storage Capability of Dielectric Capacitors

Capacitors are key components of portable electronics, computing systems, and electric vehicles. In contrast to batteries, which offer high storage capacity, but slow delivery of energy, capacitors provide fast delivery, but poor storage capacity. A great deal of effort has...

News : Motion Control
Nanoclutch Transmits Torque at Small Scales

When driving a car, the clutch mechanically carries the torque produced by the engine to the chassis of the vehicle – a coupling that has long been tested and optimized in such macroscopic machines, giving us highly efficient engines. At microscopic length scales, different physics need to be...

News : Manufacturing & Prototyping
New Method Builds Microscopic Robots of Complex Shapes

Nanoengineers at the University of California, San Diego used an innovative 3D printing technology they developed to manufacture multipurpose fish-shaped microrobots that swim around efficiently in liquids, are chemically powered by hydrogen peroxide, and magnetically controlled.

News : Nanotechnology
What Makes Quantum Dots Blink?

Quantum dots are nanoparticles of semiconductor that can be tuned to glow in a rainbow of colors. Since their discovery in the 1980s, these remarkable nanoparticles have held out tantalizing prospects for all kinds of new technologies, ranging from paint-on lighting materials and solar cells to quantum computer...

News : Photonics/Optics
New Nanowires Absorb Light

Harvard University scientists have created nanowires with new useful properties. The wire not only absorbs light at specific wavelengths, but also light from other parts of the spectrum. The technology could have applications in areas ranging from consumer electronics to solar panels.

News : Automotive
Nanogenerator Harvests Power from Rolling Tires

A group of University of Wisconsin-Madison engineers and a collaborator from China have developed a nanogenerator that harvests energy from a car's rolling tire friction. The technology ultimately could provide automobile manufacturers with a new way to reuse energy and provide greater vehicle...

News : Photonics/Optics
New Method Makes Ultrasensitive Conductivity Measurements

Researchers at Rice University have discovered a new way to make ultrasensitive conductivity measurements at optical frequencies on high-speed nanoscale electronic components. The researchers linked pairs of puck-shaped metal nanodisks with metallic nanowires and showed how the flow of...

News : Mechanical & Fluid Systems
New Technique Enables Fast, Inexpensive Nanofiber Production

The high cost to manufacture nanofibers has relegated them to just a few niche industries. MIT researchers developed a new technique for producing nanofibers that increases the rate of production fourfold while reducing energy consumption by more than 90 percent, holding out the...

News : Electronics & Computers
New Computer Operates on Water Droplets

A synchronous computer from Stanford University operates using the unique physics of moving water droplets. The work combines the manipulation of droplet fluid dynamics with a fundamental element of computer science – an operating clock.

News : Energy
New Etching Method Boosts Nanofiber Production

A new technique from MIT researchers boosts production of nanofibers fourfold, while cutting energy consumption by more than 90 percent. Potential nanofiber applications include solar cells, water filtration, and fuel cells.

News : Nanotechnology
New Nanomaterials Mimic Bird Feathers

Inspired by the way iridescent bird feathers play with light, UC San Diego scientists have created thin-film materials in a wide range of pure colors: red, orange, yellow, and green. The hues are determined by physical structure rather than pigments.

Melanosomes, tiny packets of melanin found in the...

News : Electronics & Computers
'Gate Sensor' Detects Individual Electrons

A team of European researchers at the University of Cambridge has created an electronic device that detects the charge of a single electron in less than one microsecond. The "gate sensor" could be applied to quantum computers of the future to read information stored in the charge or spin of a single...

News : Aerospace
Engineers Develop 2D Liquid

Soft nanoparticles from a University of Pennsylvania research team stick to the plane where oil and water meet, but do not stick to one another. The interface presents a potentially useful set of properties. The nanoparticles freely move past one another while being confined to the interface, effectively acting as a...

News : Electronics & Computers
Researchers Develop Hybrid Supercapacitors

UCLA researchers have successfully combined two nanomaterials to create a new energy storage medium that combines the best qualities of batteries and supercapacitors.

The new hybrid supercapacitor stores large amounts of energy, recharges quickly, and can last for more than 10,000 recharge cycles. The...

Briefs : Nanotechnology
Purifying Nanomaterials by Dissolving Excess Reactants and Catalysts in Ferric Chloride

Physical and chemical properties of nanomaterials are known to be significantly different from those having larger crystallites (i.e. bigger than nano), but with the same chemical compositions. Optimal uses of these new nanomaterial properties will likely...

Briefs : Mechanical & Fluid Systems
Pyramid Micro-Electrofluidic-Spray Propulsion Thruster with Integrated Attitude and Thrust Vector Control

A micro-electrofluidic-spray propulsion (MEP) system was built on a micro scale, in which arrays of hundreds of nano-thrusters are etched on silicon wafers like ICs, only a centimeter on a side. Many dozens of these thruster chips can be...

Products : Manufacturing & Prototyping
Nanopositioning Stages

Aerotech (Pittsburgh, PA) offers the QNP-XY series piezo nanopositioning stages with resolution to 0.15 nm, linearity to 0.007%, and repeatability to 2 nm. The stages provide a variety of travel lengths (100 μm to 600 μm), feedback options, and vacuum versions, as well as resonant frequency up to 885 Hz. The capacitive...

Briefs : Materials
Carbon Nanotube Tower-Based Supercapacitor

A new technology to create electrochemical double-layer supercapacitors is provided using carbon nanotubes as electrodes of the storage medium. This invention allows efficient transport between the capacitor electrodes through the porous nature of the nanotubes, and has a low interface resistance...

News : Energy
Zinc Oxide Materials Power Tiny Energy Harvesting Devices

Many types of smart devices are readily available and convenient to use. The goal now is to make wearable electronics that are flexible, sustainable, and powered by ambient renewable energy. This last goal inspired researchers to explore how the attractive physical features of zinc oxide...

News : Electronics & Computers
Wearable Nanowire Sensors Monitor Electrophysiological Signals

Researchers from North Carolina State University have developed a new, wearable sensor that uses silver nanowires to monitor electrophysiological signals, such as electrocardiography (EKG) or electromyography (EMG). The new sensor is as accurate as the “wet electrode” sensors...

News : Nanotechnology
Foldable Material Can Support Many Times its Weight

Researchers at Drexel University and Dalian University of Technology in China have chemically engineered a new, electrically conductive nanomaterial that is flexible enough to fold, but strong enough to support many times its own weight. They believe it can be used to improve electrical energy...

News : Imaging
Imaging Via Nanoparticles Could Monitor Cancer and Other Diseases

MIT chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging (MRI) and fluorescent imaging in living animals. Such particles could help scientists to track specific molecules produced in the body, monitor a tumor’s environment, or...

News : Energy
Solar Material Converts 90 Percent of Captured Light into Heat

A multidisciplinary engineering team at the University of California, San Diego developed a new nanoparticle-based material for concentrating solar power plants designed to absorb and convert to heat more than 90 percent of the sunlight it captures. The new material can also...

News : Green Design & Manufacturing
Fast-Charging Batteries Have 20-Year Lifespan

Scientists at Nanyang Technology University (NTU) have developed ultra-fast charging batteries that can be recharged up to 70 percent in only two minutes.

The new-generation batteries also have a long lifespan of over 20 years, more than 10 times compared to existing lithium-ion batteries.

In...

News : RF & Microwave Electronics
Tiny Wireless Sensing Device Alerts Users to Telltale Vapors Remotely

A research team at the Georgia Tech Research Institute (GTRI) has developed a small electronic sensing device that can alert users wirelessly to the presence of chemical vapors in the atmosphere. The technology, which could be manufactured using familiar aerosol-jet printing...

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