Printed sensors provide on the spot fentanyl detection
Researchers have developed screen-printed sensors that could offer a faster, convenient and low-cost method to detect the drug fentanyl. The sensors can detect micromolar concentrations of fentanyl in just one minute. They are easy to produce, cost only a few cents apiece, and are disposable.
Robots to assist dementia caregivers
Building robots that can help people with dementia has been a longtime goal for roboticists. Yet until now, no one has sought to survey informal caregivers, such as family members, about what characteristics and roles these robots should have.
Charting a path to cheaper flexible solar cells
There's a lot to like about perovskite-based solar cells. They are simple and cheap to produce, offer flexibility that could unlock a wide new range of installation methods and places, and in recent years have reached energy efficiencies approaching those of traditional silicon-based cells. But figuring out how to produce perovskite-based energy devices that last longer than a couple of months has been a challenge.
Unleashing perovskites' potential for solar cells
Researchers have been able to decipher a key aspect of the behavior of perovskites made with different formulations: With certain additives there is a kind of "sweet spot" where greater amounts will enhance performance and beyond which further amounts begin to degrade it.
Vagus nerve stimulation eases PTSD
In a randomized, controlled pilot trial, participants pre-treated with noninvasive vagus nerve stimulation experienced less pain after heat stimulus than mock-treated participants.
CRISPR/Cas9 to control genetic inheritance in mice
Biologists have developed the world's first CRISPR/Cas9-based approach to control genetic inheritance in a mammal.
3D printed implant treats spinal cord injury
For the first time, researchers have used rapid 3D printing technologies to create a spinal cord, then successfully implanted that scaffolding, loaded with neural stem cells, into sites of severe spinal cord injury in rats.
CRISPR-based technology to control pests
Combining historical lessons with modern genetic technologies, scientists have developed a new way to control and suppress populations of insects, potentially including those that ravage agricultural crops and transmit deadly diseases.
Using personal data to predict blood pressure
Engineers used wearable off-the-shelf technology and machine learning to predict, for the first time, an individual's blood pressure and provide personalized recommendations to lower it based on this data.
Wearable ultrasound patch monitors blood pressure deep inside body
A new wearable ultrasound patch that non-invasively monitors blood pressure in arteries deep beneath the skin could help people detect cardiovascular problems earlier on and with greater precision. In tests, the patch performed as well as some clinical methods to measure blood pressure.
Building up stretchable electronics to be multipurpose as smartphones
By stacking and connecting layers of stretchable circuits on top of one another, engineers have developed an approach to build soft, pliable "3D stretchable electronics" that can pack a lot of functions while staying thin and small in size.
Biosensor chip wirelessly detects disease
Researchers have developed a chip that can detect a type of genetic mutation known as a single nucleotide polymorphism and wirelessly send the results in real time to a smartphone, computer, or other electronic device. The chip is at least 1,000 times more sensitive at detecting an SNP than current technology.
Diesel doesn't float this boat
Marine research could soon be possible without the risk of polluting either the air or the ocean. It's thanks to a new ship design and feasibility study.
Cell-like nanorobots clear bacteria and toxins from blood
Engineers have developed tiny ultrasound-powered robots that can swim through blood, removing harmful bacteria along with the toxins they produce. These proof-of-concept nanorobots could one day offer a safe and efficient way to detoxify and decontaminate biological fluids.
Researchers operate lab-grown heart cells by remote control
Researchers have developed a technique that allows them to speed up or slow down human heart cells growing in a dish on command — simply by shining a light on them and varying its intensity. The cells are grown on graphene, which converts light into electricity, providing a more realistic environment than standard plastic or glass laboratory dishes.