Articles tagged with Sensors
A new, affordable sensor technology can detect lead concentrations as low as one part per billion, making it a significant step forward in addressing global health issues. The handheld device can be used for on-site monitoring and requires only a droplet of water.
Researchers in Brazil have developed a novel method to produce electrochemical sensors using fallen tree leaves, offering an eco-friendly alternative to conventional substrates. The sensors were successfully tested for detecting dopamine and paracetamol concentrations, demonstrating their potential for medical and laboratory applications.
A team of researchers from MIT created a lightweight, compact, and efficient mechanism to reduce noise transmission using a sound-suppressing silk fabric. The fabric uses vibrations to cancel out unwanted sounds in two different ways, one for small spaces and another for larger areas like rooms or cars.
Researchers from GIST and MIT CSAIL develop a MultiSenseBadmpton dataset to enhance badminton performance analysis and AI-based coaching. The dataset captures joint movements, muscle signals, and gaze movements of badminton players.
Researchers developed a highly reflective black paint that improves detection of dark objects by lidar sensors in self-driving cars. The new paint, made with titanium dioxide, was tested on two types of lidar sensors and showed improved performance compared to traditional carbon-based paints.
A new sensor developed at the University of Copenhagen and Hvidovre Hospital can detect errors in MRI scans using laser light and gas, paving the way for better, cheaper, and faster scans. The sensor works by measuring changes in the magnetic field, allowing for corrections to be made and images to be made accurate.
Researchers developed a device with AI algorithms to analyze suckling strength and pattern in newborns. The system showed improved accuracy over subjective clinician assessments, identifying abnormal patterns that may indicate the need for surgical intervention or improved feeding practices.
Lan Yang and Jie Liao demonstrate a transformative approach to overcome limitations of whispering-gallery-mode (WGM) resonators, enabling simultaneous monitoring of multiple resonant modes within a single WGM resonator. This allows for greater resolution and accuracy in detecting molecules, with a potentially limitless range of measure...
Researchers have analyzed over a thousand images of snow to study its optical properties. The findings show promise in improving avalanche safety and autonomous car technology, but more data is needed.
Researchers developed a bioelectronic chip that can detect vitamins C and D in body fluids, offering a low-cost and easy-to-use solution for micronutrient monitoring. The chip is disposable, flexible, and can be adapted for wearable devices, enabling personalized diets and prevention of deficiencies.
Adults with type 1 diabetes who use modern hybrid insulin pumps experience significant improvements in blood sugar levels, reducing the risk of organ damage by up to three hours per day. The treatment also reduces the time spent with low blood sugar levels and is associated with high patient satisfaction.
Researchers propose a new strategy to further enhance the performance of gas sensors using single-atom catalysts. The review discusses the application, structure, and principles of semiconductor-based gas sensors, as well as the mechanisms through which single-atom catalysts improve gas sensitivity.
Researchers developed a wearable technology system to monitor surgeons' postures during long surgical procedures, finding that 52.1% of active time was spent in static postures. The study showed potential for improving ergonomics and preventing injuries by providing objective feedback on posture correction.
The researchers used an optomechanical methodology to extract the thermal expansion coefficient, specific heat, and thermal conductivity of five different materials, including graphene and ultra-thin silicon membrane. This method provides a route toward improving our understanding of heat transport in the 2D limit.
A recent study found that an e-tongue can detect signs of microorganisms in white wine within a week after contamination, four weeks before a human panel notices the change in aroma. This technology has the potential to augment traditional methods and allow winemakers to catch and mitigate problems sooner.
A new tagging method, Bioadhesive Interface for Marine Sensors (BIMS), provides a rapid, non-invasive way to track marine animal movements and behaviors. BIMS uses a soft hydrogel-based adhesive that forms strong bonds with animal tissues, allowing for long-term monitoring of fragile species.
Researchers at UCLA-developed an experimental device that reduces glare in images using low-power ambient light. The technology has potential applications in various fields, including autonomous vehicles, object recognition, image encryption, and defect detection.
Researchers have developed a waterproof 'e-glove' that transmits hand gestures made underwater to a computer, translating them into messages with 99.8% accuracy. The technology could help scuba divers communicate better with each other and boat crews on the surface.
Researchers at Linképing University have developed a digital display screen where LEDs react to touch, light, fingerprints, and the user's pulse, among other things. The screen can also be charged through the screen due to its ability to act as solar cells.
A thermal camera can improve energy expenditure calculations by wearable devices, reducing inaccuracies from 40% to under 6%. The device tracks breathing rate and body temperature using a low-resolution thermal camera, which could be incorporated into smartwatches for $45 or less.
Researchers have developed a novel sensing platform that boosts the sensitivity of conventional optical sensors using exceptional points (EPs), allowing for improved environmental detection and biomedical imaging. The new EP-enhanced sensing platform enables ultrahigh sensitivity without complex modifications to the sensor.
Researchers at the University of Sydney and Queensland University of Technology have developed a new approach to designing cameras that process and scramble visual information. The approach, known as 'sighted systems,' creates distorted images that can still be used by robots to complete tasks but do not compromise privacy.
Researchers at Tohoku University developed a high-performance magnesium-air battery that utilizes water activation and carbon cathodes. The paper-based battery achieved impressive performance results and demonstrated its versatility in wearable devices such as pulse oximeters and GPS sensors.
Researchers have developed a sensor that uses metal-organic framework to detect volatile organic compounds, which are widely present in the environment and cause pollution. The sensors can be easily produced at low cost and perform well even in high-humidity environments.
Researchers at University of Missouri are developing software that allows drones to fly independently, perceiving and interacting with their environment while achieving specific goals. This technology has the potential to assist in mapping and monitoring applications, such as 3D or 4D advanced imagery for disaster response.
Researchers from Tohoku University have developed a new signal processing technique that improves particle motion analysis in the time and frequency domain. This approach enables the detection and identification of various polarized seismic waveforms, including S-waves and P-waves, with improved accuracy.
A team from the University of Copenhagen contributed to an Antarctic experiment studying neutrinos, which may hold the answer to whether gravity also exists at the quantum level. The study found no conclusive changes in neutrino properties, but the results do not exclude the possibility of quantum gravity.
Researchers developed a new tool to improve the accuracy of electronic devices that measure plant leaf color to assess health. The software uses polarization to account for variations in light and reduce errors caused by glare.
A Simon Fraser University professor has led a team in developing a comprehensive roadmap for next-generation printable sensor technologies. These technologies could enable everyday objects and environments to acquire sensing capabilities, paving the way for advancements in sustainability and quality of life.
A new implant and smartphone app monitor bladder fullness in real time, offering a game-changer for people with paralysis, spina bifida, or end-stage bladder disease. The device's success has been demonstrated in small animal studies and non-human primate trials.
A team of UMass Amherst engineers has developed a tissue-like bioelectronic mesh system that can simultaneously measure the electrical signal and physical movement of cells in lab-grown human cardiac tissue. This breakthrough device allows researchers to observe how the heart's mechanical and electrical functions change during developm...
Researchers have developed a miniaturized optical sensor that can detect glucose levels in human blood plasma with comparable sensitivity to laboratory-based sensors. The device operates wirelessly using a coin battery and has demonstrated its viability in detecting glucose levels between 50-400mg/dL.
The Indian Institute of Science team developed a novel technique to fabricate structurally colored films with a liquid gallium metal and polydimethylsiloxane substrate. These films change color in response to mechanical deformation, showing potential applications in smart bandages, movement sensors, and reflective displays.
The novel approach enables efficient transmission, reception, and decoding of data from thousands of microelectronic chips, mimicking how neurons in the brain communicate. The sensor network can be implanted into the body or integrated into wearable devices, saving energy and bandwidth.
Researchers at OIST create a floating platform using graphite and magnets that operates without external power, opening potential for ultra-sensitive sensors and precision measurements. The new material, derived from graphite, overcomes energy loss challenges, allowing the platform to achieve 'frictionless' motion.
A four-year study by Dartmouth researchers tracks changes in student mental health during college, identifying key populations and stressors. The study found that first-year and female students are at risk for high anxiety and low self-esteem, while sophomores experience increased social activity but higher stress levels.
Researchers at the University of New Hampshire have created a unique way to measure CO2 emissions in streams and rivers, providing valuable information for land use planning and climate action. The adapted sensors can capture frequent measurements, helping understand extreme precipitation events and their impact on water bodies.
Researchers developed ultra-thin defect-free semiconducting fibers, over 100 meters long, which can be woven into fabrics. The fibers demonstrate excellent electrical and optoelectronic performance, enabling various applications such as wearable electronics and sensors.
Researchers from Tokyo University of Science developed a flexible paper-based sensor that operates like the human brain, enabling low-power and efficient health monitoring. The device can distinguish 4-bit input optical pulses and generate currents in response to time-series optical input, with rapid response times.
Researchers at MIT have developed a new sensor that can detect tiny quantities of perfluoroalkyl and polyfluoroalkyl substances (PFAS) in drinking water. The device uses lateral flow technology and can measure concentrations as low as 200 parts per trillion, offering a potential solution for consumer testing and industrial applications.
A novel approach estimates metabolic activity and infers blood glucose levels from near-infrared measurements in commercial smartphones and smartwatches. The phase delay between oxyhemoglobin and deoxyhemoglobin signals closely relates to oxygen consumption during cardiac cycles, serving as a gauge for metabolism.
Researchers at the University of Pittsburgh have developed a small-scale system that forms three-dimensional patterns, which serve as chemical fingerprints that allow chemicals in solutions to be identified. The system utilizes fluid flows and flexible posts coated with enzymes to generate distinct visual patterns.
Physicists have developed a method to make quantum signals accessible again by analyzing simultaneous changes in states of multiple sensors. This approach enables precise measurement of magnetic field variations and distance between sensors, outperforming entanglement-based methods.
Researchers demonstrate a way to amplify interactions between particles to overcome environmental noise, enabling the study of entanglement in larger systems. This breakthrough holds promise for practical applications in sensor technology and environmental monitoring.
A study published in BMC Geriatrics uses in-vehicle sensors to detect anomalous driving behavior indicative of cognitive impairment in older adults. The system analyzes driving patterns, facial expressions, and eye movement to identify early signs of dementia.
Researchers developed a wearable sticker that can detect subtle hand movements, enabling individuals with disabilities to communicate more easily. The sensors show high sensitivity and accuracy in recognizing gestures and translating them into words or commands.
A new portable sensor has been found to accurately measure black carbon concentrations as well as a regulatory standard sensor, filling a massive gap in air quality monitoring. The sensor's portability and affordability make it suitable for remote or inaccessible sites, allowing for more comprehensive data collection.
Researchers have designed a chemical sensor array, or an artificial tongue, that distinguishes dental bacteria and can inactivate them. The artificial tongue uses nanoscopic particles coated in DNA strands to detect the presence of bacteria, and can distinguish between healthy and diseased individuals with high accuracy.
A UCF-developed technology uses a plasmonic platform to detect the chirality of molecules with high precision, enabling more accurate drug development and therapies. The platform improves upon current methods with sensitivity nearly 13 orders of magnitude greater.
The University of Illinois has developed a new nanoscale sensor that can monitor areas 1,000 times smaller than traditional technology, tracking subtle changes in brain chemistry with sub-second resolution. The device takes advantage of silicon-based manufacturing techniques to achieve 100% efficiency and high spatial resolution.
Researchers developed sensors using aerogels to detect formaldehyde, a common indoor air pollutant, with real-time detection capabilities. The sensors require minimal power and can distinguish between different gases.
A small, wearable ultrasound sticker can monitor organ stiffness and detect subtle changes that signal disease progression. The device has been shown to identify early signs of acute liver failure in rats and may one day help doctors diagnose internal organ failure more effectively.
A new technique enables researchers to identify and control a greater number of atomic-scale defects in diamonds, which can be used to build larger systems of qubits for improved quantum sensing. This approach uses a specific protocol of microwave pulses to locate and extend control to additional defects.
Researchers developed a way for robots to recognize objects even when partially obscured, using a visual perception system and topology. The THOR (Teaching Humans Object Recognition) method outperforms current state-of-the-art models in cluttered spaces, including warehouses and homes.
Engineers developed an ultra-sensitive sensor made of graphene that can detect low concentrations of lead ions in water, achieving a record limit of detection down to the femtomolar range. The device's high sensitivity enables the detection of even one lead ion in a reasonable volume of water.
Researchers found a correlation between body temperature and depression symptom severity in a large international study. Participants with higher depression scores had higher body temperatures, suggesting that cooling the body may be a novel treatment approach for depression.
Researchers have developed a fluorescent sensor array that can detect Alzheimer's-related proteins, allowing for earlier disease detection. The tool uses an array of sensor molecules that light up amyloids, providing a high level of sensitivity and selectivity in distinguishing between different amyloid-related conditions.
A research team led by Professor Yang Yong found that severely oxidized metallic glass nanotubes can attain an ultrahigh recoverable elastic strain of up to 14% at room temperature. The discovery implies that oxidation in low-dimension metallic glass can result in unique properties for applications in sensors, medical devices, and othe...
The biodegradable sensor, made from plant-based material, can detect pesticide levels in minutes and has the potential to help assure food safety. The study showed that washing and immersion were insufficient to remove residues of pesticides, highlighting the need for reliable detection methods.
A KAIST research team has developed a stretchable and adhesive microneedle sensor that can detect physiological signals without being affected by sweat and dead skin. The sensor allows for long-term stable control of wearable robots, enabling precise movement recognition for rehabilitation treatments.