Articles tagged with Nucleation
Engineers at Washington University in St. Louis have discovered the activation energy and kinetic factors of calcium carbonate's nucleation, key to predicting and controlling the process. This research can help create nanomaterials, control nanoparticle properties, and aid in designing larger-scale engineering processes.
Researchers developed a new method to detect nucleation in microdroplets by measuring contrast between droplets and their surroundings. The technique provides the most accurate and efficient way to detect crystal nucleation, overcoming previous resolution challenges.
Researchers developed a new assay to measure nucleation, the first step in prion transformation, allowing them to distinguish between proteins with prion behavior and those without. This approach may help understand prions associated with diseases as well as their role in normal biological processes.
Researchers discover highly faulted and organized 'Durmid ladder structure' in southern California, which could be nucleation site for next M>7.5 earthquake on the San Andreas Fault. The structure is at least 25 km long and features tens of master faults along its edges.
A team of engineers at Washington University in St. Louis studied the formation of new bone and teeth, discovering that miniscule gaps in collagen's fiber structure facilitate the nucleation of calcium phosphate. The findings provide a new view into the current theory of calcium phosphate nucleation in confined spaces.
A team of scientists has uncovered the molecular details of protein crystal nucleation, a process with great medical and scientific relevance. They developed a new methodology to study this elusive system, providing insights into polymorph selection and guiding the crystallization process to produce desired crystal forms.
Researchers at Case Western Reserve University question long-held understanding of Earth's solid center formation, citing energy barriers and supercooling issues. The team proposes alternative solutions, including the possibility of a nucleation-enhancing solid metal affecting the core's crystallization process.
Researchers discovered that a simple physical mechanism governs the formation of protein filaments, which are associated with diseases such as Alzheimer's and Type 2 diabetes. Understanding this process could lead to new therapies and materials for nanotechnology.
Researchers at Iowa State University have developed a theoretical framework to understand the relationship between capture zones and the formation of nanoclusters. The study highlights the importance of subtle spatial details in the nucleation process, which is crucial for controlling nanostructure properties.
A team of researchers proposes a new question on the crystallization of water in droplets, finding that density waves are excited before crystallization. The study uses computer simulations to investigate the freezing of nanoscale silicon drops and films, providing new insights into the formation of ice and snow.
Researchers have identified a molecular chaperone that can break the critical cycle leading to Alzheimer's disease. The molecule, Brichos, inhibits secondary nucleation, preventing the formation of toxic oligomers and amyloid fibrils, which are hallmark of the disease.
A team of researchers simulated bubble nucleation using Japan's most powerful computer, discovering that a classical theory developed in the 1960s holds true for gas bubbles in liquids. The findings have implications for engineering applications, such as designing more efficient power stations or propellers.
Researchers used a powerful microscope to study the birth of crystals in real time, revealing that calcium carbonate forms into different minerals through various pathways. This discovery may help scientists understand how to lock carbon dioxide out of the atmosphere and better reconstruct ancient climates.
Scientists discovered that oxidized organic compounds play a crucial role in new particle formation and growth. This finding contributes to better understanding of the connection between clouds and climate, shedding light on the complex process of cloud formation.
Researchers at Virginia Tech and Purdue University have developed a novel polymer that helps orally administered drugs reach the bloodstream. The polymer, made from natural cellulose, prevents crystallization and enhances drug stability and solubility, making it potentially more effective for treating serious illnesses.
Researchers have captured the first three-dimensional crystalline snapshot of the initial step in actin filament formation, crucial for understanding cell shape and cancer. The study's dual-mutant approach helped overcome challenges in forming crystals, revealing critical contacts involved in nucleation.
A new study by GW Professor Tianshu Li provides direct computational evidence that nucleation of ice in small droplets is strongly size-dependent. The team's findings demonstrate that water at the nanoscale can no longer be considered bulk water, with implications for climate research and atmospheric science.
Researchers at Lawrence Berkley National Laboratory's Center for Nanoscale Control of Geologic CO2 have engineered bacteria to speed up the formation of solid carbonate minerals, which can permanently trap carbon dioxide. This process could help remove excess CO2 from the atmosphere and mitigate global warming.
Researchers found a new mechanism controlling peak strength in nanostructured metals by observing organized dislocation patterns in 3-D atomic simulations. The pattern, governed by nucleation, dictates the metal's strength or weakness.
Silicon nanowires show highly repeatable nucleation process, allowing for predictable growth and design of electronic systems. The research could enable the continuation of Moore's law by providing a new manufacturing method for nanowire-based electronics.
The coercivity mechanism of HDDR Nd-Fe-B permanent magnetic alloy is greatly related to its microstructure defect at the grain boundary, according to the study. For a fixed lex, coercivity reaches maximum at 2r0/lex=1.67, controlled by pinning and nucleation mechanisms.
Scientists at Virginia Tech have found a novel mechanism for demineralization of noncrystalline silicas, which can dissolve up to 100 times faster than expected. This breakthrough has significant implications for the development of biomedical implants and synthetic materials with bone-like properties.
Materials scientists have developed a theoretical model to predict the strength of metals at the nanoscale. Their study found that metal strengths saturate at around 10-50 nanometers diameter due to temperature and strain rate sensitivity.
Chemical engineers discovered a fundamental flaw in the conventional view of how liquids form bubbles that grow and turn into vapors. The new findings apply to homogeneous nucleation and suggest multiple possible pathways for phase transition, potentially leading to practical safety benefits for industry.
The study reveals that nanobubbles formed by the collapse of one bubble become new nucleation sites for later bubbles, allowing them to form earlier and at lower temperatures. This discovery may impact technologies such as inkjet printing and thermal cancer therapies.
Researchers used NASA's Electrostatic Levitator to prove a 50-year-old hypothesis on nucleation, a process crucial for materials and biological systems. The study showed that liquid metals resist turning into solids due to an atomic 'nucleation barrier', a fundamental mismatch in atom arrangement.
Researchers have developed a system to detect the formation of gallstones by monitoring the interactions between cholesterol and lecithin in artificial bile. The technique may help identify key enzymes that speed up or slow down gallstone growth, leading to new treatments for cardiovascular ailments and genetic disorders.