Tech Briefs

A Thermoelectric Cooler to Restore Sensation in Amputees

This advancement, one of the first of its kind, enables a useful new capability for a variety of applications, including improved prostheses, haptics for new modalities in augmented reality (AR), and thermally modulated therapeutics for applications such as pain management. The technology also has a variety of potential industrial and research applications.

Making Conductive, Biodegradable Wires from Designed Proteins

The miniscule wires — the size of transistors on silicon chips or one thousandth of the breadth of the finest human hair — are made completely of natural amino acids and heme molecules, found in proteins such as hemoglobin, which transports oxygen in red blood cells.

Wireless Electronic ‘Stickers’ Gauge Forces Between Touching Objects

Engineers at the University of California San Diego have developed electronic “stickers” that measure the force exerted by one object upon another. The force stickers are wireless, run without batteries and fit in tight spaces. That makes them versatile for a wide range of applications.

Light-Harnessing Sensors Give Hope to Limited-Mobility Patients

A research team has successfully overcome the limitations of soft strain sensors by integrating computer vision technology into optical sensors. The team developed a sensor technology known as computer vision-based optical strain (CVOS) during its study. Unlike conventional sensors reliant on electrical signals, CVOS sensors employ computer vision and optical sensors to analyze microscale optical patterns, extracting data regarding changes.

Wireless, Battery-Free, Biodegradable Blood Flow Sensor

Monitoring the success of surgery on blood vessels is challenging, as the first sign of trouble often comes too late. A new device could make it easier for doctors to monitor the success of blood vessel surgery.

Wearable Health Sensor for Monitoring Muscle Atrophy

Researchers at The Ohio State University have fabricated the first wearable sensor designed to detect and monitor muscle atrophy. This new study published in the journal IEEE Transactions on Biomedical Engineering suggests that an electromagnetic sensor made out of conductive “e-threads” could be used as an alternative to frequent monitoring using MRI.

Methods for Predicting Transonic Flutter Using Simple Data Models

NASA’s Ames Research Center has developed a novel closed-form solution to model wing flutter aerodynamics for any aircraft wing (within a certain thickness regime and without camber). This closed-form solution can be readily extended to wing sections with camber.

Next-Generation Radar for the F-35 Lightning II

Northrop Grumman Corporation is developing AN/APG-85, an advanced Active Electronically Scanned Array (AESA) radar for the F-35 Lightning II.

Lunar Landing Pads

Engineers at NASA’s Kennedy Space Center and Sidus Space developed a novel interlocking paver system enabling the robotic construction of high-stability vertical takeoff and landing pads.

AI Co-Pilot Enhances Human Precision for Safer Aviation

Meet Air-Guardian: A system developed by researchers at the MIT Computer Science and Artificial Intelligence Laboratory (CSAIL). As modern pilots grapple with an onslaught of information from multiple monitors, especially during critical moments, Air-Guardian acts as a proactive co-pilot; a partnership between human and machine, rooted in understanding attention.

Miniscule Robots of Metal and Plastic

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

A Soft Robotic Hand Uses AI to Improve Hand Dexterity

A first-of-its-kind robotic glove is lending a “hand” and providing hope to piano players who have suffered a disabling stroke. Developed by researchers from Florida Atlantic University’s College of Engineering and Computer Science, the soft robotic hand exoskeleton uses artificial intelligence to improve hand dexterity.

Circumferential Scissor Spring Enhances Precision in Hand Controllers

Innovators at NASA’s Johnson Space Center have designed a circumferential scissor spring mechanism, that when incorporated into a hand controller, improves the restorative force to a control stick’s neutral position. The design also provides for operation on a more linear portion of the spring’s force deflection curve, yielding better feedback to the user.

Scurrying Centipedes Inspire Many-Legged Robots

Intrigued to see if many limbs could be helpful for locomotion in this world, a team at the Georgia Institute of Technology is using a centipede's style of movement to its advantage. They developed a new theory of multilegged locomotion and created many-legged robotic models.

Generative AI Models Solve Multistep Robot Manipulation Problems

MIT researchers developed a machine-learning technique called Diffusion-CCSP. Diffusion models learn to generate new data samples that resemble samples in a training dataset by iteratively refining their output.

Additive Manufacturing Model-Based Process Metrics

Inventors at the NASA Langley Research Center have developed a novel method to model and ingest point-wise process data to evaluate an additive manufacturing build and its file for issues by highlighting potential anomalies or other areas where the build may have issues with fusion of the material.

Amateur Drone Videos Could Aid Natural Disaster Damage Assessment

By using artificial intelligence, researchers are developing a system that can automatically identify buildings after disasters and make an initial determination of whether they are damaged and how serious that damage might be.

PockEngine Enables AI on Edge Devices to Keep Learning Over Time

Researchers from MIT, the MIT-IBM Watson AI Lab, and elsewhere have developed a technique that enables deep-learning models to efficiently adapt to new sensor data directly on an edge device. Their on-device training method, Pock-Engine, determines which parts of a huge machine-learning model need to be updated to improve accuracy, and only stores and computes with those specific pieces.

Using Kirigami to make Ultrastrong, Lightweight Structures

Using kirigami, the ancient Japanese art of folding and cutting paper, MIT researchers have now manufactured a type of high-performance architected material known as a plate lattice, on a much larger scale than scientists have previously been able to achieve by additive fabrication.

Exploring 3D Printing in a Weightless Environment

Recent experiments by a team from the West Virginia University focused on how a weightless microgravity environment affects 3D printing using titania foam, a material with potential applications ranging from UV blocking to water purification. ACS Applied Materials and Interfaces published their findings.

Using Lasers to ‘Heat and Beat’ 3D-Printed Steel to Help Reduce Costs

A new method for metal 3D printing aims to make more efficient use of resources by allowing structural modifications to be “programmed” into metal alloys during 3D printing, fine-tuning their properties without the “heating and beating” process that’s been in use for thousands of years.

Computing Breakthrough: First Logical Quantum Processor

Harvard researchers have realized a key milestone in the quest for stable, scalable quantum computing, an ultra-high-speed technology that will enable game-changing advances in a variety of fields, including medicine, science, and finance.

Automated Tow/Tape Placement System

NASA’s Langley Research Center has developed a simplified, tool-less automated tow/tape placement (ATP) system. This invention enables several benefits that mitigate limitations associated with conventional ATP systems. Read on to learn more.

A Lightweight Material Stronger than Steel

Scientists at the Columbia University, University of Connecticut, and the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory were able to fabricate a pure form of glass and coat specialized pieces of DNA with it to create a material that was not only stronger than steel, but incredibly lightweight.

Buzzing Loop-Current Leads to Break in Quantum Matter

A series of buzzing “loop-currents” could explain a recently discovered, never-before-seen phenomenon in a type of quantum material. The quantum material is known by the chemical formula Mn 3Si2Te6, but it’s safe to call it “honeycomb.” Read on to learn more.

Scaling Up Nano for Sustainable Manufacturing

Developed by a team led by Lawrence Berkeley National Laboratory, a self-assembling nanosheet could significantly extend the shelf life of consumer products. And because the new material is recyclable, it could also enable a sustainable manufacturing approach that keeps single-use packaging and electronics out of landfills.

New Ultra-Strong Material for Microchip Sensors

Researchers have unveiled a remarkable new material with potential to impact the world of material science: amorphous silicon carbide (a-SiC). Beyond its exceptional strength, this material demonstrates mechanical properties crucial for vibration isolation on a microchip. It is therefore particularly suitable for making ultra-sensitive microchip sensors.

Highest-Resolution Single-Photon Superconducting Camera

The NIST camera is made up of grids of ultrathin electrical wires, cooled to near absolute zero, in which current moves with no resistance until a wire is struck by a photon. In these superconducting-nanowire cameras, the energy imparted by even a single photon can be detected because it shuts down the superconductivity at a particular location (pixel) on the grid. Combining all the locations and intensities of all the photons makes up an image.