Tag: Diagnostics

High Speed Video Precisely Captures Blood Cell Velocity

Researchers at ITMO University in Saint Petersburg, Russia, have developed a non-invasive high-speed video capillaroscopy system that can precisely measure the velocity of blood cells flowing through capillaries in the skin around a fingernail. The technique could be useful in assessing cardiovascular conditions. Capillaroscopy systems offer a simp (Read more...)

Researchers Break Fundamental Barrier of Photoacoustic Imaging: Can View Capillaries at Super Resolution

Photoacoustic imaging is a way to look beneath the surface of a biological sample at high resolution. A laser is used to excite tissue, expanding it slightly and generating vibrations within it, which results in sound waves. It images better than ultrasound and at depths greater than optical techniques, revealing some pretty small objects (Read more...)

An Ingredient Technology Company Powering the World of Wearables: Interview with Valencell VP Ryan Kraudel

At Medgadget, we cover a lot of digital health devices and wearables. Some are developed by startups, while others come from brand name businesses that have branched out into this new and growing market. A common thread among most of the digital health technologies covered is the need to record data through various sensor technologies. However (Read more...)

Swallowable Flexible Sensor to Detect Stomach Movements

Scientists at MIT have developed a flexible sensor that patients can swallow. The sensor sticks to the stomach wall and can relay information about stomach peristalsis. This could help doctors to diagnose disorders that slow down the movement of food through the gastrointestinal tract, or monitor food intake in obese patients. The research team wan (Read more...)

Laser Monitors Mitochondria to Predict Cardiac Arrest

Researchers have developed a laser device that can tell in real time whether tissues in the body are receiving enough oxygen. The laser system relies on resonance Raman spectroscopy, and could help doctors to predict cardiac arrest, as low oxygen levels in heart muscle is a warning sign that the heart could stop pumping. “With current [& (Read more...)

$40 Keychain Device Detects Food Allergens

For those with allergic reactions to certain foods, cross-contamination or accidental mislabeling can lead to reactions ranging from annoying to life-threatening. To address this health need, researchers at Harvard Medical School have made a device that can quickly, inexpensively, and accurately detect common food antigens. The integrated exogenous (Read more...)

Paper Test for Zika Powered by Gold Nanoparticles

Zika is often a silent disease that might not display any symptoms in infected persons, making screening particularly important. In the developing world, mobile testing systems that can be easily transported and used are not available, so sending a sample to a lab is still required to detect Zika infected individuals. Researchers at Washington Univ (Read more...)

Smartphone-Powered Diagnostic Spectrum Analyzer Shrinks a Hospital Lab Into Portable Device

Bioengineers at the University of Illinois at Urbana-Champaign have turned a smartphone into a portable diagnostic laboratory capable of performing a range of spectrum analyses that is currently done using large and expensive stationary machines. The investigators built a smartphone attachment that utilizes the smartphone’s camera to analyze (Read more...)