Menu

Blog

Archive for the ‘chemistry’ category: Page 36

Mar 16, 2024

This unconventional superconductor is the first grown naturally

Posted by in categories: chemistry, sustainability

Scientists at Ames National Laboratory have revealed the first unconventional superconductor with a chemical composition naturally found in the Earth’s crust. Named “miassite,” this mineral joins a rare league of only four natural substances capable of exhibiting superconductivity under laboratory conditions.

According to the research team’s study published in the journal Communication Materials, the discovery holds promise for future advancements in sustainable and cost-effective technologies.

Mar 15, 2024

Novel Lensless Light Diffraction Method Detects Viral Infection

Posted by in categories: biotech/medical, chemistry

“Viruses, infections, and pandemics have become recurrent features in our lives, profoundly impacting human existence and even extending their reach to animals. Despite this, accessible, rapid, and affordable virus detection methods have been lacking,” said Xingcai Zhang, PhD, researcher, Harvard University, told GEN. “Our study aims to visualize viral infection states, predict infection duration, unravel the infection process, explore inhibition methods, and contribute to understanding viral disease transmission and pathogenesis.”

Viral infection of cells causes stress resulting in cell morphology differences over time. This study leveraged those known morphological changes to discern between infected and non-infected cells in culture. The standard practice for identifying infected cells, the methyl thiazolyl tetrazolium (MTT) assay, requires the use of reagent treatments and chemical reactions which can take upwards of 40 hours per sample, which is destroyed in the process.

The method proposed in this paper uses a lensless light diffraction platform to detect diffraction patterns, which can be used to extract information such as contrast and inverse differential moment which are used to create diffraction fingerprints. The fingerprints can be monitored continuously in the same samples as there is no inherent damage to cells.

Mar 14, 2024

WholeGraph Storage: Optimizing Memory and Retrieval for Graph Neural Networks

Posted by in categories: chemistry, robotics/AI

🧠 New Graph Neural Network Technique 🔥

NVIDIA researchers developed WholeGraphStor, a novel #GNN memory optimization.

Storing entire graphs in a compressed format reduces memory footprint,…

Continue reading “WholeGraph Storage: Optimizing Memory and Retrieval for Graph Neural Networks” »

Mar 14, 2024

Dr. William Kapp, MD — CEO, Fountain Life — Preventative, Predictive, Personalized Healthcare

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

Preventative, predictive and personalized healthcare and longevity — dr. william kapp, MD — CEO, fountain life.


Dr. William Kapp, MD is Chief Executive Officer of Fountain Life (https://fountainlife.com/about/), a company focused on transforming the current healthcare system into one that is both proactive and data-driven, enabling enhanced longevity and catching and treating illnesses earlier than ever before, focusing on the detection and reversal of asymptomatic diseases and advancing an entirely new healthcare paradigm.

Continue reading “Dr. William Kapp, MD — CEO, Fountain Life — Preventative, Predictive, Personalized Healthcare” »

Mar 14, 2024

Motixafortide and Stem Cell Transplants for Multiple Myeloma

Posted by in categories: biotech/medical, chemistry

The recently approved drug motixafortide may help improve stem cell transplants for people with multiple myeloma. Learn more about this treatment:


However, Dr. Schulz cautioned, this finding is not definitive because the two drugs were not tested head-to-head in a randomized trial. A randomized clinical trial comparing the drugs “would have been a better and fairer comparison,” he said, since plerixafor and motixafortide both work by blocking a chemical signal that tells stem cells to stay in the bone marrow.

Finally, Dr. Crees and his colleagues did a series of experiments looking at the different types of blood-forming stem cells mobilized by G-CSF plus placebo, motixafortide, or plerixafor.

Continue reading “Motixafortide and Stem Cell Transplants for Multiple Myeloma” »

Mar 14, 2024

Next-generation stool DNA test found to have best detection rate of noninvasive colorectal cancer screening tools

Posted by in categories: biotech/medical, chemistry

A study of more than 21,000 average risk patients at 186 sites across the U.S., led by Regenstrief Institute and Indiana University School of Medicine research scientist Thomas Imperiale, M.D., has found that the next-generation multi-target stool DNA colorectal cancer screening test detects 94% of colorectal cancers. This test has the best performance for detection of both colorectal cancer and advanced precancerous polyps of any noninvasive colorectal cancer screening test.

The study results are published in the New England Journal of Medicine.

“We found that the next-generation stool DNA test had a good balance of sensitivity—detecting disease—and specificity—low false positive results. Compared to the fecal immunochemical test (FIT), the next gen test had superior sensitivity for both colorectal cancer and advanced pre-cancerous polys, especially the subgroup of advanced polyps containing high grade dysplasia,” said Dr. Imperiale, first author of the study.

Mar 13, 2024

Scientists Discover Method To Stop Active Cancer Cells in Their Tracks

Posted by in categories: biotech/medical, chemistry

Researchers have found a way to stop active cancer cells in their tracks – meaning they can then be eliminated by new drug treatments.

A collaborative research project between the University of Dundee’s Drug Discovery Unit (DDU) and Queen Mary University of London, has identified chemical compounds, called tool molecules, that can halt active cancer cells.

Mar 12, 2024

Researchers explore quantum computing’s ability to speed solutions for financial sector

Posted by in categories: biotech/medical, chemistry, computing, finance, mathematics, quantum physics

The work, facilitated by the Chicago Quantum Exchange (CQE) and led by a team that includes UD, Argonne, JPMorgan Chase and University of Chicago scientists, lays groundwork for future applications—and highlights the need for cross-sector collaboration.


The third category, stochastic modeling, is used across the sciences to predict the spread of disease, the evolution of a chemical reaction, or weather patterns. The mathematical technique models complex processes by making random changes to a variable and observing how the process responds to the changes.

The method is used in finance, for instance, to describe the evolution of stock prices and interest rates. With the power of quantum computing behind it, stochastic modeling can provide faster and more accurate predictions about the market.

Continue reading “Researchers explore quantum computing’s ability to speed solutions for financial sector” »

Mar 11, 2024

Titan’s Atmosphere: Insights into Methane Chemistry and Beyond

Posted by in categories: chemistry, space

What can Titan’s methane-rich atmosphere teach us about finding life beyond Earth? This is what a recent study published in Planetary and Space Science hopes to address as a team of international researchers investigated the photochemistry of Saturn’s largest moon, which is also the only moon in the solar system with a dense atmosphere, to ascertain if the moon’s methane-rich atmosphere can support life. This study holds the potential to help researchers better understand the conditions necessary for life to emerge, along with where to search for it beyond Earth.

“Titan’s atmosphere works like a planetary-sized chemical reactor, producing many complex carbon-based molecules,” said Rafael Rianço-Silva, who is a master’s degree student at the University of Lisbon and lead author of the study. “Of all the atmospheres we know in the Solar System, the atmosphere of Titan is the most similar to the one we think existed on the early Earth.”

For the study, the team used the European Southern Observatory’s Very Large Telescope Ultraviolet and Visual Echelle Spectrograph (VLT-UVES) to conduct high resolution analyses of Titan’s hazy and methane-rich atmosphere. Using this data, the team identified possible traces of the tricarbon molecule (C3), which is known for being a building block for the development of complex molecules and has been previously identified in cometary comas and interstellar clouds, the latter of which was found using VLT-UVES. If confirmed, Titan will be the first planetary body to possess tricarbon either in its atmosphere or on its surface.

Mar 11, 2024

High-Intensity Exercise can Reverse Neurodegeneration in Parkinson’s, study suggests

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

High-intensity exercise induces brain-protective effects that have the potential to not just slow down but possibly reverse the neurodegeneration associated with Parkinson’s disease, a new pilot study suggests.

Prior research has shown that many forms of exercise are linked to improved symptoms of Parkinson’s disease. But there has been no evidence that hitting the gym could create changes at the brain level. Now, a small proof-of-concept study involving 10 patients showed that high-intensity aerobic exercise preserved dopamine-producing neurons, the brain cells that are most vulnerable to destruction in patients with the disease.

In fact, after six months of exercise, the neurons actually had grown healthier and produced stronger dopamine signals. Dopamine is a chemical that helps brain cells communicate with one another. The researchers published their findings in npj Parkinson’s Disease on February 9.

Page 36 of 327First3334353637383940Last