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Archive for the ‘biotech/medical’ category: Page 2133

Mar 23, 2018

Chip detects Legionnaires’ bacteria in minutes, not days

Posted by in categories: biotech/medical, computing

When the water in the rooftop cooling towers of a building’s air conditioning system gets infected with Legionella bacteria, people in the building can get potentially-fatal Legionnaires’ disease. Therefore, it’s important to check that water for the bacteria on a regular basis. A new chip is promised to do it faster than ever.

The typical method of checking for Legionella involves putting a water sample in a Petri dish, then waiting 10 to 14 days to see if any bacterial cultures grow. Unfortunately, populations of Legionella can reach outbreak levels is as short a period as one week. Additionally, if an outbreak has already occurred, then its source needs to be ascertained as fast as possible.

That’s why the new LegioTyper chip was created.

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Mar 23, 2018

Could heat ‘brain switch’ lead to Alzheimer’s treatment?

Posted by in categories: biotech/medical, neuroscience

Research in flies shows that using temperature-sensitive proteins to control neurons could give us greater insight into how the brain works—and what’s going wrong when it doesn’t.

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Mar 23, 2018

Robots Could Replace Surgeons in the Battle Against Cancer

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

Fred Moll started a $50 billion robotics company. Now he has FDA approval for a device a doctor sends into the lungs to detect cancer. His ultimate goal: Get rid of the doctor.

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Mar 23, 2018

Scientists develop tiny tooth-mounted sensors that can track what you eat

Posted by in categories: biotech/medical, food, health, wearables

Monitoring in real time what happens in and around our bodies can be invaluable in the context of health care or clinical studies, but not so easy to do. That could soon change thanks to new, miniaturized sensors developed by researchers at the Tufts University School of Engineering that, when mounted directly on a tooth and communicating wirelessly with a mobile device, can transmit information on glucose, salt and alcohol intake. In research to be published soon in the journal Advanced Materials, researchers note that future adaptations of these sensors could enable the detection and recording of a wide range of nutrients, chemicals and physiological states.

Previous wearable devices for monitoring dietary intake suffered from limitations such as requiring the use of a mouth guard, bulky wiring, or necessitating frequent replacement as the rapidly degraded. Tufts engineers sought a more adoptable technology and developed a sensor with a mere 2mm x 2mm footprint that can flexibly conform and bond to the irregular surface of a tooth. In a similar fashion to the way a toll is collected on a highway, the sensors transmit their data wirelessly in response to an incoming radiofrequency signal.

The sensors are made up of three sandwiched layers: a central “bioresponsive” layer that absorbs the nutrient or other chemicals to be detected, and outer layers consisting of two square-shaped gold rings. Together, the three layers act like a tiny antenna, collecting and transmitting waves in the radiofrequency spectrum. As an incoming wave hits the sensor, some of it is cancelled out and the rest transmitted back, just like a patch of blue paint absorbs redder wavelengths and reflects the blue back to our eyes.

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Mar 22, 2018

Changing Regulations Mean Genetically Modified Meat Could Soon Be on Your Plate

Posted by in categories: biotech/medical, food, genetics

Biotech lobbyists and companies are trying to get the Trump administration to hand regulation of genetically edited animals over to the USDA, which has more lenient rules than the FDA, which currently regulates animals.

Low-fat pigs? Chickens with cancer-fighting eggs?

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Mar 22, 2018

Nebula Genomics

Posted by in categories: biotech/medical, bitcoin

Pharma and biotech companies spend billions of dollars each year to acquire genomic data. Scientists need large genomic datasets to identify causes of disease and develop cures. However, growth of the genomic data market is hindered by small data quantities, data fragmentation, lack of data standardization and slow data acquisition.

Nebula Genomics will leverage blockchain technology to eliminate the middleman and empower people to own their personal genomic data. This will effectively lower sequencing costs and enhance data privacy, resulting in growth of genomic data. Our open protocol will leverage the genomic data growth by enabling data buyers to efficiently aggregate standardized data from many individuals and genomic databanks.

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Mar 22, 2018

Lana Awad is engineering the neuro-tech that will transform humanity

Posted by in categories: biotech/medical, business, Elon Musk, engineering, internet, military, neuroscience

Perfect vision is great. But like any advantage it comes with limitations. Those with ease don’t develop the same unique senses and strengths as someone who must overcome obstacles, people like Lana Awad, a neurotech engineer at CTRL-labs in New York, who diagnosed her own degenerative eye disease with a high school science textbook as a teen in Syria and went on to teach at Harvard University.

Though they see themselves as clear leaders, visionaries with all the obvious advantages—like Elon Musk and Mark Zuckerberg, for example—can be blind in their way, lacking the context needed to guide if they don’t recognize their counterintuitive limitations. This is problematic for humanity because we’re all relying on them to create the tools that increasingly rule every aspect of our lives. The internet is just the start.

Tools that will meld mind and machine are already a reality. Neurotech is a huge business with applications being developed for gaming, the military, medicine, social media, and much more to come. Neurotech Report projected in 2016 that the $7.6 billion market could reach $12 billion by 2020. Wired magazine called 2017, “a coming-out year for the brain machine interface (BMI).”

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Mar 22, 2018

TELEPATHIC superhumans could be a reality ‘within decades’

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

According toDr Eric Leuthardt, a brain surgeon at Washington University in St. Louis, neural prosthetics will become mainstream in the coming decades (stock image).

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Mar 22, 2018

Nanospears deliver genetic material to cells with pinpoint accuracy

Posted by in categories: biotech/medical, genetics, life extension, nanotechnology

UCLA scientists have developed a new method that utilizes microscopic splinter-like structures called “nanospears” for the targeted delivery of biomolecules such as genes straight to patient cells. These magnetically guided nanostructures could enable gene therapies that are safer, faster and more cost-effective.

The research was published in the journal ACS Nano by senior author Paul Weiss, UC Presidential Chair and distinguished professor of chemistry and biochemistry, materials science and engineering, and member of the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA.

Gene therapy, the process of adding or replacing missing or defective genes in patient cells, has shown great promise as a treatment for a host of diseases, including hemophilia, muscular dystrophy, immune deficiencies and certain types of cancer.

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Mar 22, 2018

Unique communication strategy discovered in stem cell pathway controlling plant growth

Posted by in categories: biotech/medical, food, genetics

A team of plant geneticists at Cold Spring Harbor Laboratory (CSHL) has identified a protein receptor on stem cells involved in plant development that can issue different instructions about how to grow depending on what peptide (protein fragment) activates it.

This is the first such multi-functional receptor found to work in this way to control . The new findings obtained by CSHL Professor David Jackson and colleagues may have important implications for efforts to boost yields of essential food crops such as corn and rice.

Plant growth and development depend on structures called meristems — reservoirs in plants that contain . When prompted by peptide signals, stem in the meristem develop into any of the plant’s organs — roots, leaves, or flowers, for example. These signals generally work like a key (the peptide) fitting into a lock on the surface of a cell (the ). The lock opens momentarily, triggering the release of a inside the cell. The messenger carries instructions for the cell to do something, such as grow into a root or flower cell or even stop growing altogether. Conventionally, one or more peptides fit into a receptor to release a single type of chemical messenger.

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