Nanotechnology

Smallest Walking Robot Makes Microscale Measurements

Cornell researchers in physics and engineering have created the smallest walking robot yet. Its mission: to be tiny enough to interact with waves of visible light and still move...

Magnetically Controlled Kirigami Surfaces Move Objects: No Grasping Needed

A novel device couples magnetic fields and kirigami design principles to remotely control the movement of a flexible dimpled surface, allowing it to manipulate...

MIT Team Takes a Major Step Toward Fully 3D-Printed Active Electronics

Active electronics — components that can control electrical signals — usually contain semiconductor devices that receive, store, and process information. These...

Nanoscale Device Points the Way to Future Wireless Communication Channels

In a paper published in the journal Nature Nanotechnology, a team of Caltech engineers reports building a metasurface patterned with miniscule tunable antennas capable of reflecting an incoming beam of optical light to create many sidebands, or channels, of different optical frequencies. Read on to learn more.

First Toroidal Micro-Robot to Swim Autonomously in Viscous Liquids

A peek through an optical microscope reveals a hidden universe teeming with life. Nature has devised ingenious methods for micro-organisms to navigate their viscous...

Self-Propelled Nanorobots

The “nanoswimmers” could be used to remediate contaminated soil, improve water filtration, or even deliver drugs to targeted areas of the body.

How Much Do You Know About Energy Harvesting?

Energy harvesting is an increasingly important technology. It’s important in many different fields, from the Internet of Things to medicine and beyond. How much do you know about energy harvesting? Test your knowledge with this quiz.

Solving The Doping Problem: Enhancing Performance in Organic Semiconductors

Physicists at the University of Cambridge Cavendish Laboratory have discovered two new ways to improve organic semiconductors by removing more electrons from the...

Ultra-Sensitive Lead Detector Could Improve Water Quality Monitoring

Engineers have developed an ultra-sensitive sensor made with graphene that can detect extraordinarily low concentrations of lead ions in water. The device achieves a record limit of detection of lead down to the femtomolar range, which is one million times more sensitive than previous sensing technologies. Read on to learn more.

Synthetic Mini Motor with Enormous Power

Researchers have developed an artificial motor at the supramolecular level that can develop impressive power. The wind-up motor is a tiny ribbon made of special molecules. When energy is applied, the...

Unique Nanodisk Holds Major Potential for Future of Photonic Research

Researchers at Chalmers University of Technology have for the first time succeeded in combining two major research fields in photonics by creating a nanoobject with...

Improving Upon the Design of Microelectronic Devices

A new study led by researchers at the University of Minnesota Twin Cities is providing new insights into how next-generation electronics, including memory components in computers, breakdown or degrade over time.

World’s Strongest Battery Paves Way for Light, Energy-Efficient Vehicles

When cars, planes, ships, or computers are built from a material that functions as both a battery and a load-bearing structure, the weight and energy consumption are...

Butterfly-Inspired AI Technology

Professor Saptarshi Das and his team at Penn State University learned that when it comes to mating, two things matter for Heliconius butterflies: the look and the smell of their potential partner. This led them to think about how multiple sensory inputs could enable more efficient use of AI.

Swimming Microrobots Deliver Cancer-fighting Drugs to Metastatic Lung Tumors

Engineers at the University of California San Diego have developed microscopic robots, known as microrobots, capable of swimming through the lungs to deliver...

VaCNT Makes Up a Promising Membrane Material

Researchers of Karlsruhe Institute of Technology and partners carried out steroid hormone adsorption experiments to study the interplay of forces in the small pores. They found that vertically aligned carbon nanotubes (VaCNT) of specific pore geometry and pore surface structure are suited for use as highly selective membranes.

Oxygen-Free Chemical Vapor Deposition Method to Make Graphene

Engineers are poised to clean things up with an oxygen-free chemical vapor deposition (OF-CVD) method that can create high-quality graphene samples at scale. Their work directly demonstrates how trace oxygen affects the growth rate of graphene and identifies the link between oxygen and graphene quality for the first time.

New Technique Pinpoints Nanoscale ‘Hot Spots’ in Electronics

When electronic devices like laptops or smartphones overheat, they are fundamentally suffering from a nanoscale heat transfer problem. Pinpointing the source of that problem...

3D-Printed Mini-Actuators Can Move Small Soft Robots, Lock Them Into New Shapes

Researchers from North Carolina State University have demonstrated miniature soft hydraulic actuators that can be used to control the deformation and motion of...

Molecular Crystal Motors Move Like Microbes When Exposed to Light

At first glance, Rabih O. Al-Kaysi’s molecular motors look like the microscopic worms you’d see in a drop of pond water. But these wriggling ribbons are not alive;...

Researchers Demonstrate Cutting-Edge Chip Technology for Ultra-Low Power AI Connected Devices

Researchers from NUS, together with industry partners Soitec and NXP Semiconductors, have demonstrated a new class of silicon systems that...

This Chip Safeguards User Data While Enabling Efficient Computing on a Smartphone

Health-monitoring apps can help people manage chronic diseases or stay on track with fitness goals, using nothing more than a smartphone. However, these apps...

Opening Up the Potential of Thin-Film Electronics for Flexible Chip Design

Silicon semiconductors have become the ‘oil’ of the computer age, as was demonstrated recently by the chip shortage crisis. However, one of the disadvantages of...

New Adhesive Tape Easily Picks Up and Sticks Down 2D Materials

A research team from Kyushu University, in collaboration with Japanese company Nitto Denko, has developed a tape that can be used to stick 2D materials to many different surfaces, in an easy and user-friendly way.

Exosome-Coated Stent Heals Vascular Injury, Repairs Damaged Tissue

The stent delivers regenerative stem cell-derived therapy to blood-starved tissue.

New Fuel Cell Architecture Uses Nanowires for Durability

A promising, more durable fuel cell design could help transform heavy-duty trucking and other clean fuel cell applications.

Integrating Dimensions to Get More Out of Moore’s Law

Moore's Law, a fundamental scaling principle for electronic devices, forecasts that the number of transistors on a chip will double every two years, ensuring more computing power —...

Coherent Establishes 6-inch InP Wafer Fabrication Capability

Coherent has established what the company describes as the "world's first capability for 6-inch indium phosphide (InP) wafer fabrication." The compound semiconductor and...

Miniscule Robots of Metal and Plastic

A technique enables manufacturing of minuscule robots by interlocking multiple materials in a complex way.