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UrduHistorically, Lake Okeechobee was thought to be impaired only by phosphorus, focusing efforts on reducing agricultural runoff. However, new comprehensive sampling across the Lake Okeechobee Waterway and its connected estuaries shows that toxic algal blooms also are driven by rising nitrogen levels from human waste and urban runoff. Increased nitrogen, worsened by extreme rainfall, significantly fuels bloom severity. Findings underscore the need for integrated nutrient management and improved wastewater treatment to protect the lake and its estuaries.
Tag: Chemistry
Chemical chameleon reveals novel pathway for separating rare-earth metals
Researchers at the Department of Energy’s Oak Ridge National Laboratory have found a chemical “chameleon” that could improve the process used to purify rare-earth metals used in clean energy, medical and national security applications.
The world’s fastest single-shot 2D imaging technique films ultrafast dynamics in flames
Candle flames, cars, and airplanes emit harmful gases and particles, which are formed through highly complex processes involving extremely fast reactions and often transient flow conditions. To better understand these processes, scientists from the USA and Europe developed the fastest 2D planar imaging system.
Scientists use magnetic nanotech to safely rewarm frozen tissues for transplant
Looking to extend the viability of human tissues, researchers report in ACS’ Nano Letters their efforts to facilitate completely freezing, rather than cooling and then thawing, potentially life-saving organs for transplant. They demonstrate a magnetic nanoparticle’s successful rewarming of animal tissues.
Levels of one ‘forever chemical’ are increasing in groundwater, study finds
Researchers in ACS’ Environmental Science & Technology Letters analyzed water from over 100 wells in Denmark for one particularly persistent PFAS: trifluoroacetate. They report steadily increasing levels of the forever chemical in recent decades.
Why dinosaur collagen might have staying power
Now, scientists report in ACS Central Science that the unique tenacity of collagen in dinosaur skeletons may result from a molecular structure that shields these vulnerable bonds from attack by water that’s present in the environment.
Assorted, distinctive behavior of molten uranium salt revealed by neutrons
Researchers have documented for the first time the unique chemistry dynamics and structure of high-temperature liquid uranium trichloride salt, a potential nuclear fuel source for next-generation reactors.
Quantum dot-enabled infrared hyperspectral imaging with single-pixel detection
This study suggests single-pixel detection as a cost-effective alternative to expensive InGaAs focal plane arrays (FPAs) for near infrared (NIR) hyperspectral imaging.
Novel chemical tool aims to streamline drug-making process
The invention of a tool capable of unlocking previously impossible organic chemical reactions has opened new pathways in the pharmaceutical industry to create effective drugs more quickly.
Getting the stink out of smoke-tainted wine
Wildfires can damage crops, even if flames come nowhere near the plants. One outcome can be an unpleasant flavor and smell of wine that is made from grapes exposed to smoke. But researchers report in ACS’ Journal of Agricultural and Food Chemistry that they have developed a way to lessen this smoke taint to improve the palatability of the wine.
Researchers demystify polymer binders to pave way for better sulfide solid-state electrolyte membranes
Using a polymer to make a strong yet springy thin film, scientists led by the Department of Energy’s Oak Ridge National Laboratory are speeding the arrival of next-generation solid-state batteries. This effort advances the development of electric vehicle power enabled by flexible, durable sheets of solid-state electrolytes.
Single 5-nm quantum dot detection via microtoroid resonator photothermal microscopy
Scientists have developed an advanced label-free photothermal microscopy system using microtoroid whispering gallery mode resonators which enables the detection of single nanoparticles as small as 5 nm quantum dots with unprecedented sensitivity. This breakthrough, which achieves a heat dissipation detection limit of 0.75 pW, offers detailed 2D photothermal imaging and holds promise for applications in nanotechnology, biomedical research, and other scientific fields, paving the way for advancements in nanoscale imaging and characterization.
Catalyst for ‘One-Step’ Conversion of Methane to Methanol
Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and collaborating institutions have engineered a highly selective catalyst that can convert methane, a major component of natural gas, into methanol, an easily transportable liquid fuel, in a single, one-step reaction.
Estudio piloto utiliza vidrio reciclado para cultivar los ingredientes para preparar salsa
Los ingredientes de la salsa, como el cilantro y el jalapeño, se pueden cultivar en vidrio reciclado. Un estudio piloto reveló que la sustitución parcial de la tierra con fragmentos de vidrio puede acelerar el desarrollo de la planta y reducir el crecimiento de hongos no deseado. Los investigadores presentarán sus resultados en la ACS Fall 2024.
El revestimiento a base de tiza crea un tejido refrigerante
En el calor abrasador del verano, cualquier persona que pase tiempo afuera podría beneficiarse de un tejido refrigerante. Pero ahora, los investigadores han innovado con un revestimiento de microescala a base de tiza que enfría el aire debajo del tejido tratado hasta 13 grados Celsius. Presentarán sus resultados en la ACS Fall 2024.
Pilot study uses recycled glass to grow plants for salsa ingredients
Salsa ingredients, such as cilantro and jalapeño, can be cultivated on recycled glass. A pilot study found that partially replacing potting soil with glass fragments can speed up plant development and reduce unwanted fungal growth. The researchers will present their results at ACS Fall 2024.
Chalk-based coating creates a cooling fabric
In the scorching heat of summer, anyone who spends time outside could benefit from a cooling fabric. Now, researchers have innovated a durable chalk-based microscale coating that cools the air underneath treated fabric by up to 8 degrees Fahrenheit. They will present their results at ACS Fall 2024.
Química extraterrestre con posibilidades de aplicación en la tierra
Para entender mejor las moléculas prebióticas, las semillas de la vida en la Tierra y posiblemente en otros lugares, los investigadores investigaron el papel de los electrones de baja energía creados en partículas de hielo en el vacío. Presentarán sus resultados que podrían servir de base para nuevas aplicaciones en nuestro planeta hogar en la ACS Fall 2024.
Extraterrestrial chemistry with earthbound possibilities
To better understand prebiotic molecules — the seeds of life on Earth and possibly elsewhere — researchers investigated the role of low-energy electrons on ice particles in a vacuum. They will present their results that could inform new applications on our home planet at ACS Fall 2024.
Harrisburg University’s Charles Brumlik, PhD, Named a 2024 Fellow by the American Chemical Society (ACS)
The American Chemical Society (ACS) has added 37 new names to its roster of ACS Fellows in 2024, including Charles Brumlik, PhD, corporate faculty in the Master of Science in Biotechnology program at Harrisburg University of Science and Technology.
Mejora del acceso a la detección de la insuficiencia cardíaca con saliva
En el calor abrasador del verano, cualquier persona que pase tiempo afuera podría beneficiarse de un tejido refrigerante. Pero ahora, los investigadores han innovado con un revestimiento de microescala a base de tiza que enfría el aire debajo del tejido tratado hasta 13 grados Celsius. Presentarán sus resultados en la ACS Fall 2024.
Expansión con luz del implante cardíaco de un niño
Los niños que nacen con ciertos defectos cardíacos se someten a un implante de shunt para mejorar el flujo sanguíneo. El shunt debe cambiarse a medida que el cuerpo crece. Los investigadores informan que un nuevo shunt expandible que reacciona a la luz podría reducir el número de cirugías a las que se someten estos niños. Presentarán sus resultados en la ACS Fall 2024.
Improving access to heart-failure screening with saliva
Heart failure is especially fatal for people without access to medical facilities. A research team aims to bring heart failure screening from the lab to the home with a biosensor that uses a drop of saliva to screen for biomarkers of the disease. They will present their results at ACS Fall 2024.
Expanding a child’s heart implant with light
Children born with certain heart defects receive a shunt implant to improve blood flow. The shunt must be replaced as their bodies grow. Researchers say a new light-reactive expandable shunt could cut the number of surgeries these children receive. They will present their results at ACS Fall 2024.
Se acumulan las pruebas de libros venenosos que contienen tintes tóxicos
Algunos libros de la época victoriana fueron teñidos con pigmentos tóxicos. Las últimas investigaciones sobre estos “libros venenosos” utilizaron una técnica no aplicada previamente a los libros para evaluar una colección universitaria, y los investigadores descubrieron que algunos volúmenes tenían posiblemente niveles inseguros. Presentarán sus resultados en la ACS Fall 2024.
Indagar en la mente de la inteligencia artificial para fabricar mejores antibióticos
La inteligencia artificial (IA) ha explotado en popularidad, pero al igual que un ser humano, es difícil leer la mente de la IA. La IA explicable (XAI), un subconjunto de la tecnología, podría ayudarnos a hacer justamente eso justificando las decisiones de un modelo.
Los investigadores desarrollan una versión instantánea de la leche dorada de moda a base de cúrcuma
La leche “dorada” de cúrcuma se ha convertido en un elemento esencial de cualquier cafetería de moda. Ahora, los investigadores han desarrollado un método eficiente para hacer una versión instantánea y vegetal que mantiene las propiedades beneficiosas de los ingredientes al tiempo que prolonga la vida útil. Presentarán sus resultados en la ACS Fall 2024.
Evidence stacks up for poisonous books containing toxic dyes
Some Victorian books were dyed with toxic pigments. The latest research on these “poison books” used a technique not previously applied to books to assess a university collection, and the researchers found some volumes had possibly unsafe levels. They will present their results at ACS Fall 2024.
Peering into the mind of artificial intelligence to make better antibiotics
Artificial intelligence (AI) has exploded in popularity, but it’s hard to know what’s going on inside. Explainable AI (XAI) gives justification for an AI model’s decisions, and now, researchers are using it to make better antibiotics. They will present their results at ACS Fall 2024.
Researchers develop an instant version of trendy, golden turmeric milk
“Golden” turmeric milk has become a staple of any trendy café. Researchers have now developed an efficient method to make a plant-based, instant version that maintains the ingredients’ beneficial properties while also extending its shelf life. They will present their results at ACS Fall 2024.
New FSU research shows statistical analysis can detect when ChatGPT is used to cheat on multiple-choice chemistry exams
Research by a Florida State University chemist and colleague revealed how the use of ChatGPT to cheat on general chemistry multiple-choice exams can be detected through specific statistical methods
Exploring the structures of xenon-containing crystallites
Researchers have successfully examined tiny crystallites of noble gas compounds. They report structures of multiple xenon compounds in ACS Central Science.
Rising mercury pollution in soil could be related to climate change, study says
A study published in ACS’ Environmental Science & Technology estimates that soil stores substantially more mercury than previously thought, and it predicts that increases in plant growth due to climate change may add even more.
Small chemical change may reap big climate reward
Researchers at Oak Ridge National Laboratory have demonstrated that small molecular tweaks to surfaces can improve absorption technology for direct air capture, or DAC, of carbon dioxide.
Las investigaciones demuestran que la contaminación por pesticidas traspasa la cáscara de la manzana
Un grupo de investigadores que publican en la revista Nano Letters de ACS ha desarrollado un método de creación de imágenes de alta tecnología para detectar la contaminación por pesticidas en niveles inferiores, y su aplicación en la fruta revela que las prácticas actuales de seguridad alimentaria podrían ser insuficientes.
Researchers show pesticide contamination is more than apple skin deep
Researchers reporting in ACS’ Nano Letters have developed a high-tech imaging method to detect pesticide contamination at low levels, and its application on fruits reveals that current food safety practices may be insufficient.
Wayne State University professor receives NSF grant to study quantum tunneling
A Wayne State University professor recently received a three-year, $626,467 grant from the National Science Foundation’s Division of Physics. The project, “Probing Nonadiabatic Strong Field Ionization with Phase-Resolved Attoclock,” will research a quantum mechanical process known as quantum tunneling.
Mejora de la imagenología de la enfermedad de Alzheimer con sensores fluorescentes
Ahora investigadores deACS Central Science demuestran una forma de empaquetar sensores fluorescentes para facilitar su paso a través de la barrera hematoencefálica en ratones, lo que permite mejorar la obtención de imagenología cerebral. Con un mayor desarrollo, la tecnología podría contribuir a avanzar en el diagnóstico y el tratamiento de la enfermedad de Alzheimer.
Improving Alzheimer’s disease imaging — with fluorescent sensors
Now, researchers in ACS Central Science demonstrate a way of packaging fluorescent sensors for easy passage across the blood-brain barrier in mice, allowing for improved brain imaging. With further development, the technology could help advance Alzheimer’s disease diagnosis and treatment.
Wayne State University professor awarded NSF grant to research the growth of metal and metal-silicon thin films for advanced transistors
Wayne State University Professor Charles Winter, Ph.D. was awarded a three-year, $554,853 grant from the National Science Foundation to investigate new molecules and chemical reactions that can enable the growth of metal and metal-silicon thin films for advanced transistors, such as those used in tech devices like computers, phones and cars.
Researchers discover faster, more energy-efficient way to manufacture an industrially important chemical
The reactivity of zirconium on silicon nitride enhances the conversion of propane into propylene, a key commodity chemical needed to make polypropylene. This finding hints at the reactivity researchers might achieve with other nontraditional catalysts.
Chemists design novel method for generating sustainable fuel
Chemists have been working to synthesize high-value materials from waste molecules for years.
Batería de iones de litio totalmente elástica para dispositivos electrónicos flexibles
Los investigadores de ACS Energy Letters informan sobre una batería de iones de litio con componentes totalmente extensibles, incluida una capa de electrolito que puede expandirse un 5000 %, y que conserva su capacidad de almacenamiento de carga después de casi 70 ciclos de carga y descarga.
Diseño de opioides más seguros
En un estudio publicado en ACS Central Science, los investigadores han identificado una estrategia para diseñar opioides más seguros. Han demostrado que un opioide experimental, que se une a un sitio no convencional del receptor, suprime el dolor en modelos animales con menos efectos secundarios, especialmente los vinculados a sobredosis fatales.
Completely stretchy lithium-ion battery for flexible electronics
Researchers in ACS Energy Letters report a lithium-ion battery with entirely stretchable components, including an electrolyte layer that can expand by 5000%, and it retains its charge storage capacity after nearly 70 charge/discharge cycles. Potential applications include flexible electronics.
Designing safer opioids
In a study in ACS Central Science, researchers have identified a strategy to design safer opioids. They showed that an experimental opioid, which binds to an unconventional spot in the receptor, suppresses pain in animal models with fewer side effects — most notably those linked to fatal overdoses.
Caught in the Actinium
Researchers grew crystals containing actinium and illuminated them with X-rays to learn how the radioactive metal binds with other elements. That information could help design better cancer treatments.
ARPA-E IGNIITE award launches new initiatives of ORNL researchers Yang and Westover
Guang Yang and Andrew Westover of Oak Ridge National Laboratory have been selected to join the first cohort of the Department of Energy’s Advanced Research Projects Agency-Energy, or ARPA-E, Inspiring Generations of New Innovators to Impact Technologies in Energy 2024, or IGNIITE 2024, program.
UAlbany Chemist Available to Discuss Eli Lilly Alzheimer’s Drug
ALBANY, N.Y. (July 9, 2024) — Last week, the Food and Drug Administration (FDA) approved a new Alzheimer’s medication developed by Eli Lilly that has shown in clinical trials to moderately delay the progression of memory and cognitive decline in…
UA Little Rock Professors Receive $50,000 Grant from INBRE to Bring New Centrifuge to Campus
UA Little Rock Chemistry Professors Mohammad Goodarzi and Noureen Siraj have received a $50,000 grant from the Arkansas IDeA Network of Biomedical Research Excellence (INBRE) to acquire an ultra-speed centrifuge for biomedical research. Photo by Ahmed Elkhattabi.