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Nanotechnology

Blog: Manufacturing & Prototyping
What is 'Metallic Wood?' Nickel, Plus Nano-Pores
By adding nanopores to nickel, James Pikul and his team created a kind of "metallic wood."

Light of different colors travels at different speeds in different materials and structures. This is why we see white light split into its constituent colors after refracting through a...

Ultrashort optical pulses are becoming more and more relevant in a number of applications including distance measurement, molecular fingerprinting and ultrafast sampling....

Briefs: Nanotechnology
Materials Move in Response to Light

In biology, there are many examples where light induces movement or change — think of flowers and leaves turning toward sunlight. Magnetic elastomeric composites were developed that move in different...

Pulsed laser vaporization (PLV) production of single-wall carbon nanotubes (SWNTs) on traditional Co/Ni catalyst was explored with...

Briefs: Photonics/Optics
3D Inks Can Be Erased Selectively

3D printing allows for the efficient manufacture of complex geometries. A very promising method is direct laser writing in which a computer-controlled focused laser beam acts as a pen and produces the...

The first laser based on the wave physics phenomenon called bound states in the continuum (BIC) has been developed. The technology could revolutionize the development of surface...

Briefs: Test & Measurement
Device Detects Subatomic-Scale Motion

It is relatively easy to measure small movements of large objects, but is much more difficult when the moving parts are on the scale of nanometers, or billionths of a meter. The ability to accurately...

The Create the Future Design Contest was launched in 2002 to help stimulate and reward engineering innovation. In the past 16 years, the annual contest has drawn more than 13,000...

Cellphones, laptops, tablets, and many other electronics rely on their internal metallic circuits to process information at high speed. Current metal fabrication techniques...

A new method increases the service life of concrete structures by reducing the infiltration rates of deleterious ions. The key is a nano-sized additive that slows down penetration of...

Briefs: Robotics, Automation & Control
Cell-Sized Robots Sense Their Environment

Colloids — insoluble particles or molecules anywhere from a billionth to a millionth of a meter across — are so small they can stay suspended indefinitely in a liquid or even in air. Robots about...

Current density is the amount of electrical current per cross-sectional area at a given point. As transistors in integrated circuits become smaller and smaller, they need higher and higher...

Fabricated using inexpensive and widely available organic pigments used in printing inks and cosmetics, an artificial retina was developed that consists of tiny pixels like a digital camera sensor on...

FUTURE ANTENNA MINIATURIZATION MECHANISM: MAGNETOELECTRIC ANTENNAS Hwaider Lin and Nian-Xiang Sun, Northeastern University, Boston, MA USA

Antenna...

INVISIBLE GLASS

Brookhaven National Laboratory’s Center for Functional Nanomaterials (CFN) has developed a method for creating surface nanotextures that effectively...

DON’T MELT. MELD.™

The MELD™ technology enables additive manufacturing (AM) of metals. This patented process is unique because there is no...

AEROGELS FROM ENVIRONMENTAL WASTES FOR NOVEL ENGINEERING APPLICATIONS Associate Prof. Hai Minh Duong and Prof. Nhan Phan-Thien, National University of Singapore...

A technique that enables on-demand control of composite behavior could enable a variety of new capabilities for future rotorcraft design, performance, and maintenance. The focus of the research was on...

When hit with light, semiconductors (materials that have an electrical resistance in between that of metals and insulators) generate an electric current....

Photons, or units of light, are faster than electrons and could, therefore, process information faster from smaller chip structures. A switch was designed that bypasses a...

Briefs: Materials
Polymer Nanofiber-Based Reversible Nano-Switch/Sensor Schottky Diode (nanoSSSD) Device

Innovators at NASA's Glenn Research Center have developed a unique nano-structure device that operates as a nano-switch/sensor for detecting toxic gases and ultraviolet (UV) radiation. Conventional microsensors are limited by their short life, high cost and...

A new approach to structural coloration is more freeform than you might expect.

A device and method have been developed to conduct compression and tensile tests on soft materials such as flocculated sediments, biopolymers, biological materials, and food stuffs. The device...

Briefs: Test & Measurement
Microtesting Rig

The measurement of mechanical behavior in very small samples whose dimensions are on the order of microns and below can offer advantages over conventional macroscopic testing in many instances. Motivations for investigating...

To further develop semiconductor technology, the field of molecular electronics is seeking to manufacture circuit components from individual molecules instead of silicon. Because of...

Briefs: Materials
High-Kinetic-Energy Penetrator Shielding and High-Wear-Resistance Materials Fabricated with Boron Nitride Nanotubes and BNNT Polymer Composites

In recent years, anti-penetration materials have been more widely used for armor, bulletproof vests, and micrometeoroid and orbital debris protection layers for space-suits, space vehicles, and...

Briefs: Nanotechnology
Faster Photons Could Make Data Totally Secure

Transferring data using light passed along fiber optic cables has become increasingly common over the past decades, but each pulse currently contains millions of photons. That means that in principle, a portion of these could be intercepted without detection. Secure data is already encrypted, but if...

The challenge of miniaturizing devices and systems is also achieving a broader dynamic range of detection for small signals such as sound, vibration, and radio...

Question of the Week
Would You Use a ‘SwingBot?’

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