Materials & Coatings

Cobalt-Free Electrodes Achieved with Nickel Ions

A team of researchers from Japanese and French universities has developed a practical nickel-based electrode material that opens new avenues to cobalt-free batteries for electric vehicles. Read on to learn more.

Manufacturing Materials to Bring Bio-Inspired Robots to Life

In bringing bio-inspired robots to life, scientists must first create soft matter counterparts that match the softness and functionality of biological tissue. University of Nebraska–Lincoln engineer Eric Markvicka is at the forefront of these efforts. Read on to learn more.

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.

Self-Powered Sensor for Harvesting Magnetic Energy

Because it requires no battery that must be recharged or replaced, and because it requires no special wiring, such a sensor could be embedded in a hard-to-reach place, like inside the inner workings of a ship’s engine. There, it could automatically gather data on the machine’s power consumption and operations for long periods of time.

Low-Voltage, Low-Power Pressure Sensors for Monitoring Health

Researchers have found ways to develop soft OECTs for wearable pressure sensors. They first experimented with a solid type of gating substance: a charged, gelatinous substance called an ionic hydrogel. Read on to learn more.

A Novel Technique to Create Energy-Efficient Microelectronics

Microelectronics face a key challenge because of their small size. To avoid overheating, microelectronics need to consume only a fraction of the electricity of conventional electronics while still operating at peak performance. Researchers have achieved a breakthrough that could allow for a new kind of microelectronic material to do just that.

An Efficient and Cost-Effective Solution for Battery Recycling

Researchers at the Department of Energy’s Oak Ridge National Laboratory have improved on approaches that dissolve a battery in a liquid solution in order to reduce the amount of hazardous chemicals used in the process.

E-Health Patches Monitor Pulse and Blood Pressure

An international team of researchers from Japan and Austria has invented new ultraflexible patches with a ferroelectric polymer that can not only sense a patient’s pulse and blood pressure, but also power themselves from normal movements. The key was starting with a substrate just 1-μm thick.

A New Optical Metamaterial Makes True One-Way Glass Possible

A new approach has allowed researchers at Aalto University to design a kind of metamaterial that has so far been beyond the reach of existing technologies. Unlike natural materials, metamaterials and metasurfaces can be tailored to have specific electromagnetic properties, which means scientists can create materials with features desirable for industrial applications.

A New Material That Excels at Trapping Hydrogen

The advance, detailed in a paper published recently in the journal Physica Scripta, could enable more efficient compact fusion reactors that are easier to repair and maintain.

A Novel Approach to Controlling Energy Waves in 4D

A team of scientists has successfully created a new synthetic metamaterial with 4D capabilities, including the ability to control energy waves on the surface of a solid material. These waves, called mechanical surface waves, are fundamental to how vibrations travel along the surface of solid materials.

Making Hydrogels More Injectable

To aid the development of gel-like materials, MIT and Harvard University researchers have created a set of computational models to predict the material’s structure and mechanical properties, as well as functional performance outcomes.

‘Smart’ Coating Could turn Fabrics into Protective Gear

A durable, copper-based coating developed by a team at Dartmouth University can be integrated into fabric to create responsive, reusable materials such as protective equipment, environmental sensors, and smart filters.

Sensor Measures Light, Heat, and Touch

Researchers have developed a sensor that, similar to human skin, can sense temperature variation that originates from the touch of a warm object as well as the heat from solar radiation. The sensor combines pyroelectric and thermoelectric effects with a nano-optical phenomenon.

New Patch Can Help Control Robotic Exoskeletons

In a new study, engineers from Korea and the United States have developed a wearable, stretchy patch that could help to bridge the divide between people and machines — and with benefits for the health of humans around the world. In lab experiments, the researchers showed that humans could use these devices to operate robotic exoskeletons more efficiently.

Freeze-Resistant Hydration System

NASA’s Johnson Space Center is offering an innovative freeze-resistant hydration system for licensing. The technology substantially improves on existing hydration systems because it prevents water from freezing in the tubing, container, and mouthpiece, even in the harshest conditions on Earth.

Converting Carbon Dioxide to Solid Carbon Nanofibers

Researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and Columbia University have developed a way to convert carbon dioxide (CO2), a potent greenhouse gas, into carbon nanofibers, materials with a wide range of unique properties and many potential long-term uses.

AI Identifies New Materials for Carbon Capture

The atom-by-atom approach to MOF design enabled by AI will allow scientists to have what Argonne Senior Scientist and Data Science and Learning Division Director Ian Foster called a “wider lens” on these kinds of porous structures.

A Bioinspired Multimaterial Soft Robotic Hand

A research paper by scientists at the University of Coimbra proposed a soft robotic hand comprising soft actuator cores and an exoskeleton, featuring a multimaterial design aided by finite element analysis to define the hand geometry and promote finger’s bendability.

Improving and Increasing Energy Density of Batteries

When it comes to making batteries that last longer, a team of researchers including engineers at Brown University and Idaho National Laboratory believes the key might be in how things get clean — specifically how soap works in this process.

Cobalt-Free Batteries Could Power EVs of the Future

Many electric vehicles are powered by batteries that contain cobalt — a metal that carries high financial, environmental, and social costs. MIT researchers have now designed a battery material that could offer a more sustainable way to power electric cars. The new lithium-ion (Li-ion) battery includes a cathode based on organic materials, instead of cobalt or nickel (another metal often used in Li-ion batteries).

New Cathode Material for Sodium-Ion Batteries

Researchers at the U.S. Department of Energy’s Argonne National Laboratory have invented and patented a new cathode material that replaces lithium ions with sodium and would be significantly cheaper.

Snail-Inspired Robot Could Scoop Ocean Microplastics

Inspired by a small and slow snail, scientists have developed a robot prototype that may one day scoop up microplastics from the surfaces of oceans, seas, and lakes.

Liquid Crystals Hold the Key to Shapeshifting Robots

Robots and cameras of the future could be made of liquid crystals, thanks to a new discovery that significantly expands the potential of the chemicals already common in computer displays and digital watches. The findings are a simple and inexpensive way to manipulate the molecular properties of liquid crystals with light exposure.

Tiny, Fully Functional Water-Strider and Mini-Bug Robots

Reporting on their work in the proceedings of the IEEE Robotics and Automation Society’s International Conference on Intelligent Robots and Systems, the mini-bug weighs in at eight milligrams, while the water strider weighs 55 milligrams. Both can move at about six millimeters a second.

Conductive Carbon Fiber Polymer Composite

Inventors from NASA Langley and NASA Ames have created a new type of carbon fiber polymer composite that has a high thermal conductivity.