Tsakli (and related Buddhist artworks) Exhibition now started. I will add new updates over the coming weeks.
Tsakli (Tsakali) Tibetan, Mongolian & Himalayan Buddhist artwork. Paintings, drawings, antique prints, manuscripts, divination and alchemical items, tantra.
An electrolyte moves ions – atoms that have been charged by either gaining or losing an electron – between the two electrodes in a battery. Lithium ions are created at the negative electrode, the anode, and flow to the cathode where they gain electrons. When a battery charges, the ions move back to the anode.
Battery innovations can take years to come to fruition because there are so many different chemicals involved in their production. Working out the ratio of chemicals and optimising them for peak use can be an arduous task.
However, when the research team used an automated arrangement of pumps, valves, vessels, and other lab equipment to mix together three potential solvents and one salt, and then fed those results through ‘Dragonfly’, they found that the AI delivered six solutions that out-performed an existing electrolyte solution.
When it comes to developing treatments and eventual cures for diseases, being able to diagnose a condition early and accurately makes a huge difference – and scientists have now developed a quick, reliable method of identifying people with Parkinson’s disease.
The test can be run in as little as 3 minutes after a skin swab has been taken. The swab is analyzed for changes in the chemical mix of sebum, a natural waxy oil produced by the skin that has previously been linked to Parkinson’s.
At the moment, there’s no conclusive test for Parkinson’s disease – specialists look at symptoms, medical history, the results of a lengthy physical examination, and in some cases, a brain scan to diagnose the condition.
A new origins-based system for classifying minerals reveals the huge geochemical imprint that life has left on Earth. It could help us identify other worlds with life too.
The last decade has brought a lot of attention to the use of microscopic robots (microrobots or nanorobots) for biomedical applications. Now, nanoengineers have developed microrobots that can swim around in the lungs and deliver medication to be used to treat bacterial pneumonia. A new study shows that the microrobots safely eliminated pneumonia-causing bacteria in the lungs of mice and resulted in 100% survival. By contrast, untreated mice all died within three days after infection.
The results are published Nature Materials in the paper, “Nanoparticle-modified microrobots for in vivo antibiotic delivery to treat acute bacterial pneumonia.”
The microrobots are made using click chemistry to attach antibiotic-loaded neutrophil membrane-coated polymeric nanoparticles to natural microalgae. The hybrid microrobots could be used for the active delivery of antibiotics in the lungs in vivo.
Scientists managed to start the same chemical process that powers the Sun on August 8, 2021, by putting more electricity into a tiny gold capsule than the entire US electric system could handle.
It is extremely astonishing how the power of 192 laser beams sparked the same thermonuclear fire that fuels the Sun for a nanosecond.
The Sun produces energy by hurling hydrogen atoms together, generating helium in the process. We are now closer than ever to being able to harness chemical reactions with enough force to power the Sun. This is possible because fusion power technology has advanced.
An interdisciplinary team of University of Minnesota Twin Cities scientists and engineers has developed a first-of-its-kind, plant-inspired extrusion process that enables synthetic material growth. The new approach will allow researchers to build better soft robots that can navigate hard-to-reach places, complicated terrain, and potentially areas within the human body.
The paper is published in the Proceedings of the National Academy of Sciences (PNAS), a peer-reviewed, multidisciplinary, high-impact scientific journal.
Circa 2015 face_with_colon_three
Researchers have built the world’s first artificial neuron that’s capable of mimicking the function of an organic brain cell — including the ability to translate chemical signals into electrical impulses, and communicate with other human cells.
Continue reading “Scientists Have Built Artificial Neurons That Fully Mimic Human Brain Cells” »
Crucially, they showed that the synapses were capable of Hebbian learning, the process by which the strength of the connection between two neurons increases or decreases based on activity. This is key to the way information is encoded into the brain, with the strengths of connections between neurons controlling the function of different brain circuits.
In biological neurons this ability to alter the strength of connections—known as plasticity—operates at two distinct timescales. Over shorter timescales, regular firing of the neuron leads to a buildup of ions that temporarily increase the ease with which signals pass across. In the long term though, regular activity can cause new receptors to grow at a synapse, resulting in more durable increases in the strength of the connection.
With the artificial synapses, short-term plasticity operates in much the same way due to a buildup of ions. But boosting the connection strength in the long term relies on using voltage pulses to essentially grow new material out of a soup of chemical precursors at the synapse, which increases its conductivity.
When cancer develops in the body, it begins with tumor cells that rapidly multiply and divide before spreading. But how are these nascent tumor cells able to evade the body’s immune system, which is designed to recognize and defend against such faulty cells? The answer to this long-unsolved topic may hold the key to more successful cancer treatments — medications that block tumors’ subversive moves and allow the immune system to do its job.
Researchers at Harvard Medical School have now discovered a mechanism through which tumor cells can disable the immune system, enabling the tumor to spread unchecked. The study, which was conducted primarily in mice and published today in Science, demonstrates that tumor cells with a certain mutation generate a chemical, known as a metabolite, that weakens adjacent immune cells, making them less capable of eliminating cancer cells.
The results underscore the crucial roles played by tumor metabolites in the deactivation of the immune system by malignancies. The findings also highlight the crucial part that the tumor microenvironment—the region around the tumor—plays in the development of cancer.
