Articles tagged with Physical Chemistry
Lin X. Chen, a senior chemist at Argonne National Laboratory and Northwestern University professor, has received the 2020 Award in Experimental Physical Chemistry for her fundamental contributions to elucidating excited state structures, dynamics, and energetics of light harvesting systems.
Researchers discovered that the tiny apex structure in plant leaves controls water drainage, allowing for fast absorption of excess water. This adaptation enables understory plants to survive high precipitation and humidity conditions in rainforests.
Researchers at the University of Malaga have discovered that sulfur atoms can exhibit both donative and repulsive behavior, leading to the creation of more stable and functional organic diradicals. These findings have significant implications for various scientific fields, including chemistry and environmental science.
A new dye has been developed to detect signs of neurodegenerative diseases earlier and with greater precision. The dye can bind to specific amyloid structures in medical samples, allowing for the early detection of brain disease.
Researchers at Martin Luther University Halle-Wittenberg develop a method to produce stable perovskite layers, which could lead to high-performance solar cells. The approach uses an industry-wide process to control layer growth, resulting in homogenous and controlled crystals that can withstand elevated temperatures.
Researchers from the Institute of Physical Chemistry of Poland have developed new substrates for Surface Enhanced Raman Spectroscopy (SERS) that guarantee signal enhancement and repeatability. These substrates enable the routine detection of small amounts of chemical compounds, including organic molecules and specific bacteria.
Researchers investigated how additives impact carbon dioxide interaction with beverages, affecting taste and creaminess. They found that additives like sugar reduce diffusion rate, extending fizzy period. Hydrogen bonds also decrease, impacting taste.
Researchers discovered that small droplets evaporate more slowly than predicted by current models, affecting climate modeling and internal combustion engine design. The equation developed can be used to create more accurate climate models and design more efficient cooling units.
Researchers at the Institute of Physical Chemistry of Poland create a working memory based on chemical phenomena using Belousov-Zhabotinsky reaction. The system stores two logic states in triplets of adjoining droplets, allowing for permanent data storage.
The ACS Kavli Lectures will discuss recent advances in understanding polymer networks and their innovations, as well as the inspiration of CRISPR systems for powerful genome engineering tools. These lectures aim to address open challenges in materials science and provide new insights into the design and application of materials.
Scientists at the Institute of Physical Chemistry of Poland have developed a new method to monitor oxygen consumption by bacteria in microdroplets, enabling efficient testing of new drugs. The system uses polymer nanoparticles with phosphorescent dyes to measure oxygen levels without interfering with bacterial growth.
A team of researchers has successfully developed liquid-crystalline nanostructures that protect antimicrobial peptides, allowing them to target and destroy bacteria without being degraded. This innovative approach could provide a new weapon in the fight against antibiotic-resistant superbugs.
A new polymer designed to detect acute kidney injury can identify the condition in its initial stages, allowing for simple treatment and good prognosis. The polymer selectively captures lipocalin-2, a protein biomarker for acute kidney injury.
Researchers at the Institute of Physical Chemistry of the Polish Academy of Sciences have developed a novel method to create stable monolayers of nanoparticles. The new technique, known as 'tailored' chemistry, uses linker molecules to link adjacent nanoparticles together, creating a stable and durable structure.
Researchers from University of Konstanz and China successfully replicate nacre's structural configuration using calcium carbonate, chitin, and silk fibroin gel. The synthetic process creates identical characteristics to naturally occurring biomineral with improved production speed, potentially leading to high-performance materials.
Researchers from Ruhr-Universität Bochum and Technische Universität Dortmund used infrared spectroscopy and computer simulations to analyze the behavior of TMAO at high pressure. They found that some bands shifted to higher frequencies, while individual peaks changed their form, indicating a change in molecular structure.
A new description of electron scattering in surface layers enables faster materials analysis and better understanding of sample properties. The theoretical tools used in spectroscopies can exhibit great 'malice', but a new analytical method simplifies calculations of the Chandrasekhar function, reducing errors.
Chemist Phil Baran of TSRI has won a Blavatnik National Award for his transformative research in natural product synthesis and development of new synthetic methodology. This award recognizes the potential of his work to create life-saving medicines, including the approved treatment of skin cancer.
Researchers from the University of Leeds have discovered a way to prevent ice crystals from forming in water as it is cooled to -35°C using glycerol. This breakthrough has important implications for improving cryoprotectants used in fertility treatments and food storage.
Theoretical chemists from the Institute of Physical Chemistry of the Polish Academy of Sciences have found how to synthesize krypton oxide, a compound that can form an extensive and stable crystal lattice. This exotic substance can be produced at pressures exceeding 3 million atmospheres, similar to those on Krypton.
Researchers from Lomonosov Moscow State University studied histamine molecules using gas electron diffraction and quantum-chemical calculations. They were able to determine the molecule's geometric structure and predict its mechanism of tautomerization, a spontaneous transition between structural states.
A team of researchers monitored the folding of an RNA hairpin in a living cell and compared the results with those of test tube analyses. They found that the RNA molecule in the living cell exhibited strong fluctuations in stability, similar to the dynamic changes in the cellular environment.
Nine leading American scientists, including those supported by NSF, receive National Medal of Science for outstanding contributions to science. The awards also recognize innovators who have made lasting impacts on America's competitiveness and quality of life.
Researchers have developed two new catalysts effective in removing trichloroethylene, a carcinogenic compound found in tap water, through hydrodechlorination. The catalysts, cheaper and more efficient than existing ones, enable a wider use of the reaction to purify water.
Researchers from the Institute of Physical Chemistry of Poland discover that oxygen plays a crucial role in accelerating photodestruction of molecules. By slowing down oxygen permeation through polymer layers, they can extend the lifetimes of these molecules by several hundred times.
A pioneering ultrasonic device called StarStream has been developed to improve the cleaning of medical instruments using cold water, eliminating biological contamination and bacterial biofilms. The device has shown significant effectiveness in removing complex contaminants such as brain tissue from surgical steel.
International researchers found protein machines collectively induce fluctuating hydrodynamic flows, enhancing particle diffusive motions. The proteins supply power to the system by extracting energy from nonequilibrium effects.
Scientists have created unexpected shapes of mesoscale atoms using a new method for precise control over placement of tiny segments of liquid. The discovery enhances the ability to form new structures, opening possibilities for innovative microfluidic systems.
Scientists have developed a powerful tool to investigate ion channel selectivity using infrared spectroscopy and molecular dynamic-based simulations. This approach allows for the detection of subtle conformational changes in large membrane proteins, such as potassium channels, at atomic resolution.
Researchers from the Institute of Physical Chemistry of Poland use click chemistry to bond nanoparticles to a glassy carbon substrate, creating covalent bonds and forming stable structures. The method has advantages such as low temperatures, high yield and versatility.
Scientists have created buckybombs, nanoscale explosives that could target and eliminate cancer cells at the cellular level without affecting surrounding tissue. The new explosives were built by attaching nitrous oxide molecules to a Bucky-Ball and then heating it, triggering a controlled explosion.
Researchers discovered corannulene's potential as a material for future electronic devices due to its easily accessible energy levels. The molecule can form a tunneling effect when connected in a row, making it suitable for constructing molecular circuits.
Researchers investigate formation and stability of calcium alginate spheres in molecular gastronomy, finding key role for calcium ions and spontaneous wrapping of alginate chains around liquid droplets. The study's findings could help chefs design innovative cooking techniques, leading to even more fanciful dishes.
Researchers developed two europium complex-based compounds with record-high luminescence efficiency in red light, suitable for OLED applications. The materials' stability and ability to be produced from solutions make them promising for various fields, including displays, lighting components, and anticancer therapies.
Researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences have developed a microfluidic system that can merge, transport and split microdroplets, allowing for the simultaneous cultivation of hundreds of different bacteria cultures. This breakthrough could speed up research on antibiotic resistance by reduci...
Researchers from Polish Academy of Sciences discovered a new mechanism driving droplet evaporation, which plays crucial role in process at nanoscale. Temperature of evaporating liquid is prime factor responsible for evaporation.
Industrial palladium-copper catalysts change structure before use, affecting reaction catalysis. The discovery reveals potential environmental and economic benefits of alternative activation methods.
A new, fast and accurate algorithm developed by Polish researchers can calculate the Chandrasekhar function with accuracy up to over a dozen decimal digits. This method is crucial for understanding physical and chemical properties of materials' surfaces studied under laboratory conditions.
A team of researchers studied water under extreme conditions, discovering its structure transforms from ordered to disordered at supercritical temperatures. This knowledge provides an improved estimate of water's behavior during geochemical and geological processes.
A team of scientists discovered that cloud seeds can pick up molecules even when they don't collide directly with the clusters. The finding has significant implications for understanding atmospheric chemistry processes such as ozone depletion.
Scientists discover water's conductivity increases at extremely low temperatures, contradicting expectations for an ordinary liquid. This phenomenon supports the idea of a 'liquid-liquid' phase transition in water.
Scientists have observed water's retardation of dynamism in biological enzyme substrate compounds, which acts like an 'adhesive' to control metabolic processes. This finding has implications for future drug design and development of medicines.
A newly synthesized polymer, fitted with molecular pincers, effectively captures nicotine molecules and its analogues. The polymer can be used for fabrication of sensitive and selective chemical sensors to determine nicotine in solutions, as well as for slow, controlled release of nicotine for therapeutic purposes.
Frank Millero, a leading expert in marine geochemistry, has been awarded the prestigious V.M. Goldschmidt Award for his major achievements in the field. His research focuses on understanding biogeochemical processes and the global carbon dioxide cycle in the world's oceans.
Phillip A. Sharp has been awarded the 2010 Herbert Tabor Lectureship for his groundbreaking research on small RNAs, RNA interference, and its potential to revolutionize biology and generate new therapeutics. Sharp's work builds on his landmark discovery of RNA splicing in 1977, which earned him a Nobel Prize in Physiology or Medicine.
Udayan Mohanty, a physical chemist at Boston College, received a 2009 Guggenheim Fellowship to study rare chemical reactions using new computational models. He aims to discover unknown reaction pathways, particularly those surrounding DNA and RNA behavior.
Gabor A. Somorjai has been recognized with the 2008 Priestley Medal for his pioneering work in surface science and catalysis, driving significant advancements in materials science and nanoscience. His research has led to thousands of publications over 40 years.
Soft Matter will separate from its host journal in January 2007, becoming an independent publication with a focus on interdisciplinary research. The move is expected to have far-reaching effects for the soft matter community.
COACh founder and chair Geri Richmond will use $10,000 grant to expand mentorship programs to Latin America, aiming to improve hiring and promotion of women in academic chemistry departments. Richmond's organization has seen success with its workshops and leadership forums, increasing women's participation and reducing workplace stress.
Miller develops accurate chemical models by simulating traffic flow and manipulating equations to predict real-world outcomes. He aims to use these models to save laboratory time, money, and point to new avenues of research.
Christensen studies carotenoids' role in photosynthesis, a process by which plants turn light into chemical energy. His work draws students to the basics of physical chemistry, influencing his teaching at Bowdoin College.
Geraldine Richmond, a renowned Oregon chemist and educator, has been recognized for her efforts to foster diversity in the chemical workplace. She founded the Committee on the Advancement of Women in Chemistry (COACh) to support women chemists and promote gender equality.
Dai and his team have developed a system to control the synthesis of carbon nanotubes, enabling their use in sensing technologies. One type of nanotube structure shows promise as a sensor for detecting nitrogen dioxide, a common pollutant in vehicle exhaust.
Giacinto Scoles receives Peter Debye Award in Physical Chemistry for inventing new methods of creating controlled molecular beams, allowing study of chemical reactions in unprecedented detail. These techniques also contribute to the development of better semiconductors with improved performance.
Researchers at the University of Pennsylvania found that adding a 'fuzz' of chemical chains to colloidal molecules can lead to the formation of predictable arrays of lattices. This entropy-driven phenomenon offers promise for designing new materials rationally rather than through trial and error.
Chemist William R. Dolbier receives American Chemical Society Award for Creative Work in Fluorine Chemistry for innovative studies of fluorine, which strengthens bonds and makes products like Teflon resistant to high temperatures.
Dr. Mario Molina, Nobel laureate and environmental science professor, will address his experiences as a minority in the sciences at the American Chemical Society meeting. He will also discuss his work on ozone depletion and atmospheric chemistry.
Koehler's project focuses on the adsorption of trace atmospheric gases on soot under simulated conditions. Her research aims to understand how soot derived from jet fuel affects the chemical balance of the atmosphere, with potential implications for sulfur dioxide conversion to sulfuric acid.
Thomas Holme, a chemistry professor and TV personality, receives the Helen M. Free Award for Public Outreach from the American Chemical Society for his efforts to increase public awareness of chemistry through TV appearances and local activities. His segments air on WTMJ-TV, reaching an audience of over 200,000 viewers since 1995.