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Archive for the ‘biotech/medical’ category: Page 989

Apr 13, 2022

Rotating blue laser light reveals unimagined dynamics in living cells

Posted by in categories: biotech/medical, nanotechnology

When cities transform into a colorful world of lights as darkness falls, it’s often only possible to estimate their contours, which depending on the perspective can draw the attention to key details or trivia. In fluorescence microscopy, biological cells are marked with fluorescent dyes and excited to luminesce in specific areas by optical switches– like a city at night. However, this light is usually too faint for small, rapid objects, or even goes out after a while. This is known as fluorescence bleaching.

Now, a new approach developed by Prof. Dr. Alexander Rohrbach and his team in the Laboratory for Bio-and Nano-Photonics at the University of Freiburg has found a way to make the smallest objects clearly visible without fluorescence. In this way, cellular structures or virus-sized particles can be observed 100 to 1,000 times longer, ten to 100-times faster and with almost doubled resolution than with . While fluorescence microscopy records what you might call “night-time images” of structures, ROCS microscopy takes “day-time images”—opposites that can complement each other excellently. Rohrbach and his colleagues describe various applications of the technology in the latest issue of Nature Communications.

Apr 13, 2022

Mystery of why humans die around 80 may finally be solved

Posted by in categories: biotech/medical, genetics

Very good news, if unsurprising.

We already have multiple viable avenues of reducing — or eliminating altogether — this particularly pernicious form of remorseless biological entropy.

So good news… UNLESS you’re one of those people who think death is what MAKES life somehow MEANINGFUL, or that living for thousands of years or more would be BORING.

Continue reading “Mystery of why humans die around 80 may finally be solved” »

Apr 13, 2022

This Temporary Tattoo Can Monitor Diabetics’ Glucose Levels as Accurately as a Finger Prick

Posted by in category: biotech/medical

Circa 2015


Engineers from the University of California, San Diego have developed an ultra-thin temporary tattoo that can painlessly and accurately monitor the glucose levels of diabetics.

The flexible device costs just a few cents and lasts for a day at a time, and early tests have shown that it’s just as sensitive as a finger-prick test.

Continue reading “This Temporary Tattoo Can Monitor Diabetics’ Glucose Levels as Accurately as a Finger Prick” »

Apr 13, 2022

Longevity Supplements — What Works & What Doesn’t?

Posted by in categories: biotech/medical, life extension

The Interventions Testing Program is the gold standard for testing longevity drugs. What do the results say about which ones extend lifespan in mice? Rapamycin is a big winner!

New podcast w/ Richard Miller on the data on several longevity supplements including Acarbose, NR, Resveratrol, Fisetin, MCT Oil, Curcumin, Fish Oil + more!

Continue reading “Longevity Supplements — What Works & What Doesn’t?” »

Apr 13, 2022

California start-up sending tiny robots on fantastic voyage into brains

Posted by in categories: biotech/medical, robotics/AI

Sending miniature robots deep inside the human skull to treat brain disorders has long been the stuff of science fiction—but it could soon become reality, according to a California start-up.

Bionaut Labs plans its first on humans in just two years for its tiny injectable robots, which can be carefully guided through the using magnets.

“The idea of the micro robot came about way before I was born,” said co-founder and CEO Michael Shpigelmacher.

Apr 12, 2022

MS reversed by transplanted immune cells that fight Epstein-Barr virus

Posted by in categories: biotech/medical, neuroscience

In a small trial, immune cells that fight the Epstein-Barr virus have stopped the progression of multiple sclerosis, an autoimmune condition that can lead to symptoms, such as difficulty walking, that worsen over time.

Apr 12, 2022

Genetic Link Between Routine Blood Test Results and Mental Health Disorders Discovered

Posted by in categories: biotech/medical, chemistry, genetics, neuroscience

Summary: Researchers identified a genetic correlation between blood biomarkers and a range of mental health disorders. The study provides evidence some substance measures within the blood may be involved in the cause of mental illnesses. For example, immune system proteins may be involved in the development of depression, schizophrenia, and anorexia.

Source: The Conversation.

Mental health disorders including depression, schizophrenia, and anorexia show links to biological markers detected in routine blood tests, according to our new study of genetic, biochemical and psychiatric data from almost a million people.

Apr 12, 2022

How to build brain-inspired neural networks based on light

Posted by in categories: biotech/medical, robotics/AI, supercomputing

Supercomputers are extremely fast, but also use a lot of power. Neuromorphic computing, which takes our brain as a model to build fast and energy-efficient computers, can offer a viable and much-needed alternative. The technology has a wealth of opportunities, for example in autonomous driving, interpreting medical images, edge AI or long-haul optical communications. Electrical engineer Patty Stabile is a pioneer when it comes to exploring new brain-and biology-inspired computing paradigms. “TU/e combines all it takes to demonstrate the possibilities of photon-based neuromorphic computing for AI applications.”

Patty Stabile, an associate professor in the department of Electrical Engineering, was among the first to enter the emerging field of photonic neuromorphic computing.

“I had been working on a proposal to build photonic digital artificial neurons when in 2017 researchers from MIT published an article describing how they developed a small chip for carrying out the same algebraic operations, but in an analog way. That is when I realized that synapses based on analog technology were the way to go for running artificial intelligence, and I have been hooked on the subject ever since.”

Apr 12, 2022

Inferring the size of a collective of self-propelled Vicsek particles from the random motion of a single unit

Posted by in categories: biotech/medical, engineering, neuroscience

Collective dynamics are ubiquitous in the natural world. From neural circuits to animal groups, there are countless instances in which the interactions among large numbers of elementary units bestow surprisingly complex patterns of tantalizing beauty on the collective. One of the longstanding goals of researchers in many fields is to understand behaviors of a large group of individual units by monitoring the actions of a single unit. For example, an ornithologist can learn many things about the behaviors of a flock by monitoring only a single bird.

Of greater difficulty is understanding the size of a collection of units by observing a single unit. No matter how many birds one tags with monitoring equipment, one can never be assured of having tagged the entire flock. Yet, while the ability to calculate the size of a collective from individual behaviors would be a key tool for any field, there are only a handful of recent papers trying to tackle the seemingly unsolvable problem.

In a newly published study appearing in Communications Physics, investigators led by Maurizio Porfiri, Institute Professor of Mechanical and Aerospace Engineering and Biomedical Engineering, and a member of the Center for Urban Science and Progress (CUSP) at the NYU Tandon School of Engineering; and Pietro De Lellis of the University of Naples, Italy, offer a paradigm to solve this problem, one that builds upon precepts that can be traced back to the work of Einstein.

Apr 12, 2022

New nanotechnology bubbles could speed up pharma development

Posted by in categories: biotech/medical, nanotechnology

A new technique for synthesising and screening molecules developed by Danish researchers has been described in a paper published in Nature Chemistry.

The technique, dubbed “single particle combinatorial lipidic nanocontainer fusion based on DNA-mediated fusion” or SPARCLD, uses tiny soap-like “bubbles” to produce more than 40,000 different molecules on an area the size of a pinhead.

The bubbles form “nano-containers” inside which molecules can be produced using DNA nanotechnology. About 42,000 nano-containers can fit on one square millimetre.

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