Category Health/Medical

New device can diagnose COVID-19 from Saliva Samples

tabletop covid testing device
Engineers at MIT and Harvard University have designed a small tabletop device that can detect SARS-CoV-2 from a saliva sample in about an hour.
Credits:Image: Devora Najjar

The tabletop diagnostic yields results in an hour and can be programmed to detect variants of the SARS-CoV-2 virus. Researchers report that the diagnostic is just as accurate as PCR tests.

Engineers at MIT and Harvard University showed that the device can also be used to detect specific viral mutations linked to some of the SARS-CoV-2 variants that are now circulating. This result can also be obtained within an hour, potentially making it much easier to track different variants of the virus, especially in regions that don’t have access to genetic sequencing facilities.

“We demonstrated that our platform can be ...

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This Touchy-Feely Glove Senses and Maps Tactile Stimuli

the glove with visible sensors
An MIT team of engineers has designed a new touch-sensing glove that can “feel” pressure and other tactile stimuli. The glove’s inside lining is studded with small, kernel-sized electrodes that can sense and map subtle changes in pressure.
Credits:Image: Courtesy of the researchers

The design could help restore motor function after stroke, enhance virtual gaming experiences. When you pick up a balloon, the pressure to keep hold of it is different from what you would exert to grasp a jar. And now engineers at MIT and elsewhere have a way to precisely measure and map such subtleties of tactile dexterity.

The team has designed a new touch-sensing glove that can “feel” pressure and other tactile stimuli...

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Brain-inspired highly scalable Neuromorphic Hardware

Single transistor neurons and synapses fabricated using a standard silicon CMOS process. They are co-integrated on the same 8-inch wafer

KAIST researchers fabricated a brain-inspired highly scalable neuromorphic hardware by co-integrating single transistor neurons and synapses. Using standard silicon complementary metal-oxide-semiconductor (CMOS) technology, the neuromorphic hardware is expected to reduce chip cost and simplify fabrication procedures.

The research team led by Yang-Kyu Choi and Sung-Yool Choi produced a neurons and synapses based on single transistor for highly scalable neuromorphic hardware and showed the ability to recognize text and face images. This research was featured in Science Advances on August 4.

Neuromorphic hardware has attracted a great deal of atten...

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Frequent Consumption of Peanuts by Cancer Patients may increase risk of ancer Spread, study finds

A study by University of Liverpool researchers has identified new factors accompanying previous findings that frequent consumption of peanuts by cancer patients could increase risk of cancer spread.

The study, published in Carcinogenesis, shows that Peanut agglutinin (PNA) — a carbohydrate-binding protein that rapidly enters into the blood circulation after peanuts are eaten — interacts with blood vascular wall (endothelial) cells to produce cytokines.

The cytokines in question, IL-6 and MCP-1 are well-known promoters of cancer metastasis. The increased cytokine production causes other endothelial cells to express more cell surface adhesion molecules, making them more attractive to the circulating tumour cells and thus potentially promoting metastasis.

In an earlier study, Co...

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