Flinders University researchers have analyzed how an antidiabetic treatment could help control the growth of tumors, potentially paving the way for the design of better cancer treatments.
Category: biotech/medical – Page 869
Biochemical method offers view into earliest stages of RNA production
When RNA molecules are synthesized by cells—a critical process in the creation of proteins and other cellular functions—they typically undergo a series of “folding” events that determine their structure and the role they will play in expressing genetic information in living organisms.
Until recently, however, not much was known about these folding processes that occur very early in the life of RNA molecules.
But Yale researchers have now developed a method to map and measure the structure of RNA as it develops, an advance that may help scientists design more effective treatments for a host of diseases. Their findings are described in the journal Molecular Cell.
New hydrogel semiconductor could lead to better tissue-interfaced bioelectronics
The ideal material for interfacing electronics with living tissue is soft, stretchable, and just as water-loving as the tissue itself—in short, a hydrogel. Semiconductors, the key materials for bioelectronics such as pacemakers, biosensors, and drug delivery devices, on the other hand, are rigid, brittle, and water-hating, impossible to dissolve in the way hydrogels have traditionally been built.
A paper published today in Science from the UChicago Pritzker School of Molecular Engineering (PME) has solved this challenge that has long stymied researchers, reimagining the process of creating hydrogels to build a powerful semiconductor in hydrogel form. Led by Asst. Prof. Sihong Wang’s research group, the result is a bluish gel that flutters like a sea jelly in water but retains the immense semiconductive ability needed to transmit information between living tissue and machine.
The material demonstrated tissue-level moduli as soft as 81 kPa, stretchability of 150% strain, and charge-carrier mobility up to 1.4 cm2 V-1 s-1. This means their material—both semiconductor and hydrogel at the same time—ticks all the boxes for an ideal bioelectronic interface.
Neuroscientists identify a shared brain circuit for creativity
A large neuroimaging study has identified a brain circuit linked to creativity—and found that damage to this network, from injury or disease, can sometimes enhance creative expression. The findings offer new insight into how the brain enables creative thinking.
The Futurists — EPS_286: The Meaning Economy with David Shapiro
In this week’s episode we interview author, AI theorist and researcher David Shapiro is part philosopher, part theorist with a fair bit of practical wisdom thrown in. With a hit YouTube channel Shapiro travels the globe as a speaker and advisor musing on the longer-term impacts of AI, technology and human adaptability. In this deep conversation with host Brett King, we delve into the ways in which advanced AI might completely transform our way of life, including economics, politics and what it means to be human itself. This is not one you’ll want to miss.
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The Future of Manufacturing Might Be in Space
Growing these seed crystals in space could lead to much more pure wafers, says Western: “You can almost press the reset button on what we think is the limit of a semiconductor.”
Frick’s company Astral plans to do this with a mini fridge-sized furnace that reaches temperatures of about 1,500 degrees Celsius (2,700 degrees Fahrenheit). The applications of crystal growth are not just limited to semiconductors but could also lead to higher quality pharmaceuticals and other materials science breakthroughs.
Other products made in space could be produced with similar benefits. In January, China announced it had made a groundbreaking new metal alloy on its Tiangong space station that was much lighter and stronger than comparable alloys on Earth. And the unique environment of low gravity can offer new possibilities in medical research. “When you shut off gravity, you’re able to fabricate something like an organ,” says Mike Gold, the president of civil and international space business at Redwire, a Florida-based company that has experimented with in-space manufacturing on the International Space Station for years. “If you try to do this on Earth, it would be squished.”
An implantable sensor could reverse opioid overdoses
A new implantable sensor could reverse opioid overdoses. The device, developed at MIT and Brigham and Women’s Hospital, rapidly releases naloxone when an overdose is detected.
Vagus Nerve Stimulation Erases PTSD
A pioneering clinical study found that pairing vagus nerve stimulation (VNS) with traditional therapy eliminated PTSD diagnoses in all participants up to six months post-treatment.
Bridging worlds: Physicists develop novel test of the holographic principle
Exactly 100 years ago, famed Austrian physicist Erwin Schrödinger (yes, the cat guy) postulated his eponymous equation that explains how particles in quantum physics behave. A key component of quantum mechanics, Schrödinger’s Equation provides a way to calculate the wave function of a system and how it changes dynamically in time.
“Quantum mechanics, along with Albert Einstein’s theory of general relativity are the two pillars of modern physics,” says Utah State University physicist Abhay Katyal. “The challenge is, for more than half a century, scientists have struggled to reconcile these two theories.”
Quantum mechanics, says Katyal, a doctoral student and Howard L. Blood Graduate Fellow in the Department of Physics, describes the behavior of matter and forces at the subatomic level, while general relativity explains gravity on a large scale.