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Archive for the ‘biotech/medical’ category: Page 333

Nov 20, 2023

Scientists set the stage for quantum chemistry in space on NASA’s cold atom lab

Posted by in categories: biotech/medical, chemistry, mobile phones, quantum physics

For the first time in space, scientists have produced a mixture of two quantum gases made of two types of atoms. Accomplished with NASA’s Cold Atom Laboratory aboard the International Space Station, the achievement marks another step toward bringing quantum technologies currently available only on Earth into space.

Physicists at Leibniz University Hannover (LUH), part of a collaboration led by Prof. Nicholas Bigelow, University of Rochester, provided the theoretical calculations necessary for this achievement. While quantum tools are already used in everything from cell phones to GPS to , in the future, quantum tools could be used to enhance the study of planets, including our own, as well as to help solve mysteries of the universe and deepen our understanding of the fundamental laws of nature.

The new work, performed remotely by scientists on Earth, is described in Nature.

Nov 19, 2023

Re-Thinking The ‘When’ And ‘How’ Of Brain Death

Posted by in categories: biotech/medical, law, neuroscience, policy

In an article published yesterday in MIT Technology Review, Rachel Nuwer wrote a thought provoking piece exploring the boundaries between life and death.


Beyond the brain and brain death itself, related efforts are studying and attempting to develop techniques for restoring metabolic function in a number of organs other than the brain after death, including the heart and kidneys, which could greatly enhance organ donation capabilities.

While these developments are promising, researchers caution against overpromising. The path to these medical advancements is paved with years of research and ethical considerations. The exploration into the dying process will surely challenge not only scientific and medical fields but also societal, theological, and legal considerations, as it reshapes our understanding of one of life’s most profound phenomena. At some point, policy and regulations will need to follow—further adding to the complexity of the topic.

Continue reading “Re-Thinking The ‘When’ And ‘How’ Of Brain Death” »

Nov 19, 2023

Scientists craft a protein-based bandpass filter for synthetic biology

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

EPFL scientists have crafted a biological system that mimics an electronic bandpass filter, a novel sensor that could revolutionize self-regulated biological mechanisms in synthetic biology.

Synthetic biology holds the promise of enhancing and modifying into innumerable new technologies for the benefit of society. This engineering approach to biology has already reaped benefits in the fields of drug delivery, agriculture, and energy production.

In a paper published in Nature Chemical Biology, EPFL researchers at the Laboratory of Protein Design and Immunoengineering (LPDI) at the School of Engineering have taken an important step in designing more performative biological systems.

Nov 19, 2023

Could Photosynthesis Blossom Into Quantum Computing Technology?

Posted by in categories: biotech/medical, computing, information science, quantum physics

As we learned in middle school science classes, inside this common variety of greens—and most other plants—are intricate circuits of biological machinery that perform the task of converting sunlight into usable energy. Or photosynthesis. These processes keep plants alive. Boston University researchers have a vision for how they could also be harnessed into programmable units that would enable scientists to construct the first practical quantum computer.

A quantum computer would be able to perform calculations much faster than the classical computers that we use today. The laptop sitting on your desk is built on units that can represent 0 or 1, but never both or a combination of those states at the same time. While a classical computer can run only one analysis at a time, a quantum computer could run a billion or more versions of the same equation at the same time, increasing the ability of computers to better model extremely complex systems—like weather patterns or how cancer will spread through tissue—and speeding up how quickly huge datasets can be analyzed.

The idea of using photosynthetic molecules from, say, a spinach leaf to power quantum computing services might sound like science fiction. It’s not. It is “on the fringe of possibilities,” says David Coker, a College of Arts & Sciences professor of chemistry and a College of Engineering professor of materials science and engineering. Coker and collaborators at BU and Princeton University are using computer simulations and experiments to provide proof-of-concepts that photosynthetic circuits could unlock new technological capabilities. Their work is showing promising early results.

Nov 19, 2023

These Cells Spark Electricity in the Brain. They’re Not Neurons

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

Abrain is nothing if not communicative. Neurons are the chatterboxes of this conversational organ, and they speak with one another by exchanging pulses of electricity using chemical messengers called neurotransmitters. By repeating this process billions of times per second, a brain converts clusters of chemicals into coordinated actions, memories, and thoughts.

Researchers study how the brain works by eavesdropping on that chemical conversation. But neurons talk so loudly and often that if there are other, quieter voices, it might be hard to hear them.

Nov 18, 2023

Scientists Have Developed an Engineered Protein That Improves Memory

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

Researchers from the Faculty of Medicine and Surgery at the Catholic University, Rome and the Fondazione Policlinico Universitario A. Gemelli IRCCS have developed an engineered protein that boosts memory.

Neuroscientists at the Faculty of Medicine and Surgery of the Catholic University, Rome, and the Fondazione Policlinico Universitario Agostino Gemelli IRCCS have genetically modified a molecule, the protein LIMK1, which is normally active in the brain, with a key role in memory.

They added a “molecular switch” that is activated by administering a drug, rapamycin, known for its several anti-aging effects on the brain.

Nov 18, 2023

Scientists Uncover 14 Evolutionary Traps Threatening Humanity’s Future

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

Misaligned AI is not the one you should worry most about (yet).

For the first time, scientists have used the concept of evolutionary traps on human societies at large. They find that humankind risks getting stuck in 14 evolutionary dead ends, ranging from global climate tipping points to misaligned artificial intelligence, chemical pollution, and accelerating infectious diseases.

The anthropocene era: success and challenges.

Nov 18, 2023

Swallowable device tracking vital signs inside the body in human trial

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

A new device that can be swallowed like a pill can track vital signs such as breathing and heart rate from inside the body.


Left: Ben Pless Right: Traverso Lab at Brigham and Women’s Hospital.

“This device can help diagnose and monitor many health conditions without requiring hospital visits, which can make healthcare more accessible and supportive for patients,” says Giovanni Traverso, the lead author of the study, an associate professor of mechanical engineering at MIT and a gastroenterologist at Brigham and Women’s Hospital.

Continue reading “Swallowable device tracking vital signs inside the body in human trial” »

Nov 18, 2023

Large language models learn to speak biology

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

Now, generative AI models — similar to the large language model (LLM) that powers ChatGPT — are being developed to understand the rules and relationships of DNA, RNA and proteins, and the many functions and properties they produce.

How it works: Humans arrange the 26 letters in the modern English alphabet into roughly — and arguably — about 500,000 words.

Nov 18, 2023

Nanoparticles for optimized cancer therapy

Posted by in categories: biotech/medical, nanotechnology

Pancreatic cancer is one of the deadliest types of cancers in humans. It is the fourth leading cause of cancer-related deaths in the western world. The early stages of the disease often progress without symptoms, so diagnosis is usually very late.

Another problem: Advanced tumors – and their metastases – can no longer be completely removed. Chemotherapies, in turn, attack not only the tumor cells but also healthy cells throughout the body. Innovative nanoparticles could be a new approach to treat cancer more precisely.

The approach was developed by a research team from the Max Planck Institute (MPI) for Multidisciplinary Sciences, the University Medical Center Göttingen (UMG), and the Karlsruhe Institute of Technology (KIT). The therapy is now to be optimized for clinical application as quickly as possible.

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