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A new study has discovered that tattoo inks could be linked to cancer or organ failure. An analysis of 54 inks commonly used in tattoo parlors across America has uncovered that a staggering 45 of them contained unlisted additives, including chemicals known to pose alarming health risks. Multiple inks contained 2-phenoxyethanol, which can cause toxic effects in high doses. Researchers involved in the study found the most common additive to be polyethylene glycol, which is a compound that can cause acute renal failure. The study was led by Jonn Swierk from the Department of Chemistry at Binghamton University, and was...

How On Earth Did Ancient Civilisations Get MERCURY? | 13:03Chemistorian | 7.07K subscribers | 255,286 views | Premiered January 14, 2024

The EU’s chemical strategy, unveiled in 2020, included pledges to “ban [non-essential uses] of the most harmful chemicals in consumer products” such as toys, babies’ nappies, cosmetics, detergents, food packaging and textiles. “It is especially important to stop using the most harmful chemicals in consumer products, from toys and child care products to textiles and materials that come in contact with our food,” said EU Green Deal chief Frans Timmermans back in 2020. “Our health should always come first,” said EU health commissioner Stella Kyriakides also said — three years ago. But internal documents have shown these commitments are unlikely...

Crucial science topics will no longer be taught to a large swath of Indian students, according to new government guidance. Most young learners in India will no longer be exposed to key science topics in school textbooks — unless they voluntarily major in science in higher classes. On June 1, India cut a slew of foundational topics from tenth grade textbooks, including the periodic table of elements, Darwin's theory of evolution, the Pythagorean theorem, sources of energy, sustainable management of natural resources and contribution of agriculture to the national economy, among others. A small section explaining Michael Faraday’s contributions to...

Supramolecular assemblies of six rubidium and one iron atom. Scanning tunneling microscopy revealed the clear signal of the one iron atom. (Ajayi et al., Nature, 2023) ***************************************************************************** Atoms may not have bones, but we still want to know how they are put together. These tiny particles are the basis on which all normal matter is built (including our bones), and understanding them helps us understand the larger Universe. We currently use high-energy X-ray light to help us understand atoms and molecules and how they're arranged, catching diffracted beams to reconstruct their configurations in crystal form. Now, scientists have used X-rays...

Earlier this month I wrote about organic chemistry professor Maitland Jones. Jones, who is now 84-years-old taught at Princeton until 2007 and then retired and became an adjunct professor at NYU. He’s considered one of the leading teachers in the field and his textbook on organic chem is now in its 5th edition. But his class is not easy. In fact, it had become known as a weed out class for students who wanted to go into medicine. But last spring a group of his students revolted.…as the campus emerged from pandemic restrictions, 82 of his 350 students signed a...

New York University fired Maitland Jones Jr. because his organic chemistry course was “too hard.” The man wrote the textbook on the subject, now in its fifth edition, and had been a star teacher at Princeton. He went out of his way to tape his lectures, at his own cost, to mitigate some of the attendance problems attributed to the pandemic. Yet students revolted because they feared, according to the New York Times, that “they were not given the grades that would allow them to get into medical school.” The professor, meanwhile, saw a different problem: “They weren’t coming to...

Bent alkyne (left), diradical (center) and cyclobutadiene molecules under atomic force microscopy. (Leo Gross/IBM) If chemists built cars, they'd fill a factory with car parts, set it on fire, and sift from the ashes pieces that now looked vaguely car-like. When you're dealing with car-parts the size of atoms, this is a perfectly reasonable process. Yet chemists yearn for ways to reduce the waste and make reactions far more precise. Chemical engineering has taken a step forward, with researchers from the University of Santiago de Compostela in Spain, the University of Regensburg in Germany, and IBM Research Europe forcing a...

Journal of Electroanalytical Chemistry Most Downloaded Articles The most downloaded articles from Journal of Electroanalytical Chemistry in the last 9 months. Preliminary survey on cold fusion: It’s not pathological science and may require revision of nuclear theory Luciano Ondir Freire, Delvonei Alves de Andrade Open Access December 2021 https://www.sciencedirect.com/science/article/pii/S1572665721008973 https://doi.org/10.1016/j.jelechem.2021.115871 rights and content Under a Creative Commons license ----------------------------------------------------------------------------------------------- Highlights • After three decades, “cold fusion” field is alive with thousands of publications technologies. • Nuclear reactions in solids are more complex than simple fusion. • They also seem to need energy triggers like background radiation. • The field does...

...Bushway, a science teacher at Barrie Middle and Upper School, wondered aloud to her upper-level high school chemistry class if there was a little filter — similar to the ones that are made for camping to purify water — that they could make from inexpensive components to easily remove lead. The students were excited about the idea, and they started thinking about the project in 2020 when COVID-19 restrictions kept them out of the classroom. While at home, the team met virtually and discussed designs for an attachment to screw a filter onto a sink’s faucet. Then in the spring...

In 1960, the first survey dedicated to the Search for Extraterrestrial Intelligence (SETI) was mounted at the Green Bank Observatory in West Virginia. This was Project Ozma, which was the brainchild of famed astronomer and SETI pioneer Frank Drake (for whom the Drake Equation is named). Since then, the collective efforts to find evidence of life beyond Earth have coalesced to create a new field of study known as astrobiology. The search for extraterrestrial life has been the subject of renewed interest thanks to the thousands of exoplanets that have been discovered in recent years. Unfortunately, our efforts are still...

A research team of international space scientists, led by Dr. Matthias van Ginneken from the University of Kent's School of Physical Sciences, has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago. Extra-terrestrial particles (condensation spherules) recovered on the summit of Walnumfjellet (WN) within the Sør Rondane Mountains, Queen Maud Land, East Antarctica, indicate an unusual touchdown event where a jet of melted and vaporized meteoritic material resulting from the atmospheric entry of an asteroid at least 100 m in size reached the surface at high velocity. This type of explosion caused...

Hey guys, I am currently studying organic chemistry specifically swarts reaction. I just wanted to know why do we use only Antinomy trifluoride or swarts reagent in the swarts reaction. I tried searching but couldn't find a good explanation. It is not even mentioned in most of the articles like the article I have linked. It would help me a lot if someone can help me out

Central to both quantum chemistry and the Schrödinger equation is the wave function – a mathematical object that completely specifies the behavior of the electrons in a molecule. The wave function is a high-dimensional entity, and it is therefore extremely difficult to capture all the nuances that encode how the individual electrons affect each other. Many methods of quantum chemistry in fact give up on expressing the wave function altogether, instead attempting only to determine the energy of a given molecule. This however requires approximations to be made, limiting the prediction quality of such methods. Other methods represent the wave...

When humanity finally detected the collision between two neutron stars in 2017, we confirmed a long-held theory - in the energetic fires of these incredible explosions, elements heavier than iron are forged. And so, we thought we had an answer to the question of how these elements - including gold - propagated throughout the Universe. But a new analysis has revealed a problem. According to new galactic chemical evolution models, neutron star collisions don't even come close to producing the abundances of heavy elements found in the Milky Way galaxy today. "Neutron star mergers did not produce enough heavy elements...

Gold is an element, which means you can't make it through ordinary chemical reactions — though alchemists tried for centuries. To make the sparkly metal, you have to bind 79 protons and 118 neutrons together to form a single atomic nucleus. That's an intense nuclear fusion reaction. But such intense fusion doesn't happen frequently enough, at least not nearby, to make the giant trove of gold we find on Earth and elsewhere in the solar system. And a new study has found the most commonly-theorized origin of gold — collisions between neutron stars — can't explain gold's abundance either. So...

While out on bond in his drugs case in July 1993, Honken and his girlfriend Angela Johnson kidnapped Lori Duncan and her two daughters from their Mason City, Iowa, home, then killed and buried them in a wooded area nearby. Ten-year-old Kandi and 6-year-old Amber were still in their swimsuits on the hot summer day when they were shot execution-style in the back of the head. Their primary target that day was Lori Duncan’s then-boyfriend, Greg Nicholson, who also lived at the home and was also killed. He and Lori Duncan were bound and gagged and shot multiple times. Honken...

BOSTON (AP) — A Harvard University professor has been c harged with lying about his ties to a Chinese-run recruitment program and concealing payments he received from the Chinese government for research, federal officials said Tuesday. Charles Lieber, chair of the department of chemistry and chemical biology, is accused of hiding his involvement in China’s Thousand Talents Plan, a program designed to recruit people with access to and knowledge of foreign technology and intellectual property.

Scientists have captured the first ever footage of atoms bonding at a scale around half a million times smaller than the width of a human hair. Using advanced microscopy methods, the team of UK and German researchers captured the breaking of a chemical bond between two rhenium atoms. The video shows the two atoms to the left of the footage, between 0.1 and 0.3 nanometres, appearing as black blobs as they bond and break. Atoms are ‘the building blocks of the world’ and the matter around us is made up of layers and layers of atoms – unless they’re a...

The search continued today for a missing London woman after a strange series of events which led to the stunning discovery of radioactive materials iher north end home last night. ( Sept 5th ). Police have been scouring the city's north end and have even brought in a helicopter to help in the search for 68 year old Annette Serdarevich who suffers from dementia. The area around 1643 Kathryn Ave. was shut down for most of the night as the hazardous materials unit responded to a level three emergency - the most serious type. During a search of the premises,...