Sensors & Test

New Imaging Method Reveals Concealed Objects

Using state-of-the-art indium phosphide transistors and a basic computer and mirrors, researchers were able to produce images of concealed bodies.

Highly Sensitive, Mass Producible Organic Photodetectors

Incorporating new green-light absorbing transparent organic photodetectors into organic-silicon hybrid image sensors could be useful for applications such as light-based heart-rate monitoring, fingerprint recognition and devices that detect the presence of nearby objects

Pressure Sensors for Improved Dexterity in Robots

Made from 3D graphene foam, the sensors use a piezoresistive approach, meaning when the material is put under pressure it dynamically changes its electric resistance, easily detecting and adapting to the range of pressure required, from light to heavy.

Getting a Grip with ‘Necrobotic’ Spiders

An open-access study in Advanced Science outlines the process by which Preston and lead author Faye Yap harnessed a spider’s physiology in a first step toward a novel area of research they call “necrobotics.”

Sensor Breakthrough Paves the Way for a Map of the World Under Earth’s Surface

The sensor works by detecting variations in microgravity using the principles of quantum physics, which is based on manipulating nature at the sub-molecular level.

Future Wearable Health Tech Could Measure Gases Released from Skin

Some wearable devices are already capable of measuring pulse rates or temperatures, but this team’s method would allow the technology to sense biomarkers related to metabolic disorders, like heart disease or diabetes.

Printable IoT Sensor Development Platform

To benchmark performance of printed sensors against the state of the art, NASA has developed a low-power flexible sensor platform.

Let’s Get Small: New Argonne Method Greatly Improves X-Ray Nanotomography Resolution

A group of scientists led by the U.S. Department of Energy’s Argonne National Laboratory has created a new method for improving the resolution of hard X-ray nanotomography.

Making Measurements with a Fine-Toothed Comb

Enter the frequency comb, a Nobel Prize-winning device and the result of decades of research from NIST and others. The comb generates a billion pulses of light per second, which bounce back and forth inside an optical cavity.

An Accurate and Inexpensive COVID-19 Testing Device

The device could transform public health officials’ ability to quickly detect and respond to the coronavirus — or the next pandemic.

RFID-Enabled Wireless Instrumentation

The sensor tags, which are embedded with a processor and memory bank for acquired data, are placed about the vehicle and stream data only when queried by a fixed-location RFID interrogator.

Nano-Thermometers for Temperature Imaging

The final product could make temperature measurements that are 10 times more precise than state-of-the-art techniques, acquired in one-tenth the time in a volume 10,000 times smaller.

COVID-19 Test Uses Smartphone Cameras to Spot Virus RNA

Unlike other tests, this test gives an estimate of viral load or the number of virus particles in a sample, which can help doctors monitor the progression of a COVID-19 infection and estimate how contagious a patient might be.

Smartphone-Powered Microchip Enables At-Home Medical Diagnostic Testing

The innovation opens the door for faster and more affordable at-home medical testing.

Flexible Backing Improves Brain-Computer Interface

Adding a flexible backing to this kind of brain-computer interface allows the device to more evenly conform to the brain’s complex curved surface and to more uniformly distribute the microneedles that pierce the cortex.

A Semiconductor Material with Superior Performance

Cubic boron arsenide provides high mobility to both electrons and holes, and it has excellent thermal conductivity. It is, according to the researchers, the best semiconductor material ever found.

Miniature Optical Fiber Treatment Device Offers More Effective Cancer Immunotherapy

Cancer immunotherapy, one of the most important and promising therapies for cancer treatments, is being used by oncologists to treat patients suffering from many different cancers including breast, cervical, colon, stomach, and skin.

Smart Skin Mimics the Sensing Capabilities of Natural Skin

Study confirms that hydrogels work in a similar way to how humans detect pressure, paving the way for more ionic devices.

Novel Chemical Glucose Sensing Method Based on Boronic Acids and Graphene Foam

Since it is a chemical sensor instead of being enzyme-based, the new technology is robust, has a long shelf-life and can be tuned to detect lower glucose concentrations than current systems.

Electronic Skin Anticipates and Perceives Touch from Different Directions for the First Time

Scientists develop a new approach for miniaturization of soft ultra-compact and highly integrated sensor units for directional tactile sensitivity in e-skin systems.

New Screening System May Point the Way to Clean, Renewable Hydrogen Power

A new, highly sensitive system for detecting the production of hydrogen gas may play an important role in the quest to develop hydrogen as an environmentally friendly and economical alternative to fossil fuels.

Future Wearable Health Tech Could Measure Gases Released from Skin

Scientists have taken the first step to creating the next generation of wearable health monitors.

Sensor Breakthrough Paves the Way for a Map of the World Under Earth’s Surface

The quantum gravity gradiometer was used to find a tunnel buried outdoors in real-world conditions one meter below the ground surface.

Ultrathin Pressure Sensor Attaches to Skin

By recording the way in which hands perform various tasks, it could help researchers in fields such as sports and medical science as well as neuroengineering.

Thin, Stretchable Biosensors Could Make Surgery Safer

Researchers formulated and synthesized the bio-inks, with the goal of creating create an ultra-soft, thin, and stretchable material for biosensors that is capable of seamlessly interfacing with the surface of organs.

New Approach to Reducing EV Battery Testing Time

A new optimization framework created by researchers at University of Michigan could drastically reduce the cost of assessing how battery configurations will perform over the long haul.

Large Format Li-Ion Calorimeter

Innovators at NASA Johnson Space Center have developed a method to measure the total and fractional heat response of large format Li-ion cells (cells with capacities greater than 100Ah) when driven into...

Method Pinpoints Microscale Damage in Metal

The process predicts when and where microscopic cracks will occur before they become catastrophic.

Metalens for Virtual and Augmented Reality

The millimeter-sized flat lens can be used in wearable displays for virtual reality, which requires compact, lightweight, and cost-effective components.