Articles tagged with Nucleation
Researchers at Bielefeld University have discovered that microcline's most common surface is sufficient for ice to form in an ordered manner, known as epitaxial growth. This finding provides a new perspective on the importance of uncommon ice faces for understanding ice nucleation.
Researchers challenged thermodynamic-based framework for catalyst design and proposed new principle focusing on declining efficiency of solid-phase electron transport. They designed homonuclear cobalt-cobalt dual-atom catalyst DA-CoCo, significantly enhancing charge transport in solid intermediates, validating the new design principle.
A new study by UNC Charlotte scientists has discovered a self-clustering mechanism in the Polycomb protein CBX2 that is essential for initiating gene-repressive condensates and guiding stem cells toward their proper fates. The researchers found that CBX2 clusters recruit two Polycomb repressive complexes, creating multicomponent repres...
Researchers will evaluate a patent-pending electrolyzer in simulated partial gravity environments aboard parabolic flights. The technology is designed to produce fuel, oxygen, and other life support compounds on the Moon or Mars for long-term human habitation.
Researchers from the Institute of Industrial Science, The University of Tokyo, used molecular-scale simulations to understand ice formation. They found that the arrangement of water molecules in the two layers closest to the surface is crucial for nucleation, promoting a low-dimensional hexagonal crystal lattice at the surface.
The study successfully manipulated the formation of left-handed or right-handed helical aggregates using precise light control, exhibiting promising insights into novel functional materials. The researchers found that residual aggregates acted as nucleation sites forming oppositely directed helical assemblies under certain conditions.
Researchers unveil groundbreaking insights into earthquake nucleation, showing that slow, aseismic motion is necessary and triggers seismic rupture. The study's findings also emphasize the critical role of geometric transitions in controlling nucleation dynamics.
A research team observed partial crystallization of a glass and developed a model explaining the crystal nucleation mechanisms within a glass at different spatial scales. The team used multiscale structural analysis mainly using synchrotron X-rays, revealing nanosized crystal nuclei forming within Zr-rich regions of the glass.
Researchers create diamond film at 1 atm pressure and 1025°C using a novel liquid metal alloy, breaking the high-pressure requirement. The synthesized diamond has a high purity and unique silicon-vacancy color centers, opening new avenues for applications in magnetic sensing and quantum computing.
Chemical simulations can be sped up by resetting them, a new study from Tel Aviv University found. This technique, called stochastic resetting, overcomes the timescale problem, allowing for more accurate predictions of slow processes.
Scientists have imaged microtubule formation in unprecedented detail, revealing a complex process that involves the gamma-tubulin ring complex and a newly-discovered latch mechanism. The findings hold promise for developing targeted therapies for various diseases, including cancer and neurodevelopmental disorders.
Researchers at Maynooth University and the University of Chicago discovered that molecular processes can perform complex calculations rivaling simple neural networks. The study used phase transitions to recognize subtle chemical combinations and build different structures in response.
A new study reveals that fungal proteins can facilitate ice formation at temperatures as warm as -10°C, challenging the long-held assumption that pure water only freezes at 0°C. The research also shows that these proteins are incredibly efficient, with some being 25 times smaller than other known ice-nucleating proteins.
Researchers found that Fusobacterium nucleatum is less abundant in patients with eosinophilic CRS and suppresses the expression of ALOX15, an enzyme involved in nasal polyp formation. The study suggests that disruptions in the nasal microbiome play a critical role in ECRS.
Printable electronics have potential in solar power and LED screens but face challenges in scalable manufacturing. Professor Adam Printz is using a new RAPID printing process to examine fundamental characteristics and advance the field.
Scientists have found that dust storms in Alaska can cause ice formation in clouds, which could add to or help cool the planet. The particles from these storms contain more biological material than those from desert environments, making them effective at forming ice crystals.
Researchers at Nagoya University found that Arctic dust is a significant source of particles forming ice crystals in Arctic low-level clouds. The findings suggest that Arctic dust can act efficiently as an ice nucleating particle, increasing the number of ice nucleating particles by over 100 times.
Researchers discuss cortactin's impact on cancer progression by modulating the Wnt5a/ROR1 signaling pathway. Cortactin expression is found in various cancers, including breast and chronic lymphocytic leukemia, suggesting its potential role in promoting metastasis.
Researchers at Hokkaido University have discovered a new pathway to forming presolar grains, which could help scientists better understand the interstellar environment and develop more efficient nanoparticles. The study suggests that these grains formed through a non-classical nucleation pathway, involving three distinct steps.
A research team investigated NPF events in Beijing's atmosphere, discovering regional transport plays a vital role in creating 'polluted' NPF events. These events significantly impact air quality, climate, and human health, highlighting the importance of joint air pollution control measures.
Researchers developed a general workflow to simulate atmospheric aerosol nucleation using the full ab initio method. They used active learning techniques and deep network-based force fields to attain comprehensive data sets and better understand the mechanisms of aerosol nucleation.
Researchers developed an isothermal chemical vapor transport (ICVT) method for growing high-quality monocrystals without temperature gradients. This technique simplifies the growth process and produces crystals with excellent crystallographic quality.
Researchers at the University of Konstanz developed a novel MRI contrast agent using prenucleation clusters of calcium carbonate, achieving three to four times higher contrast than commercial agents. The agent is produced easily, cheaply, and has no toxic properties.
Researchers at Princeton University used artificial intelligence to simulate ice formation by individual atoms and molecules with quantum accuracy. This breakthrough enables tracking of hundreds of thousands of atoms over longer timespans than previous simulations.
Researchers at Ural Federal University developed a mathematical model explaining anomalous behavior in melts, which can lead to creating materials with specific properties. The model accounts for nucleation and crystal growth, reducing supercooling and narrowing the two-phase layer.
Researchers at UNSW Medicine & Health unveil a simple mathematical model predicting DNA hybridization rates based on nucleating interactions. The discovery has the potential to improve understanding of biological systems and refine nanotechnologies.
A new AI algorithm, IcePic, has been developed to predict ice crystal formation with high accuracy. It outperformed human scientists in an online quiz, identifying areas where humans were wrong and providing valuable insights for atmospheric science research.
Researchers from Colorado State University have made direct observations of ice nucleating particles in the central Arctic, revealing strong seasonality and seasonal changes. These findings provide crucial insights into the effects of climate change on clouds and precipitation patterns.
Researchers have successfully visualized crystal nucleation, a crucial stage in crystallization, using Raman microspectroscopy and optical trapping. This breakthrough enables better understanding of molecular dynamics and may lead to the development of purer and more stable crystals for pharmaceuticals and other industries.
Researchers at Tohoku University have discovered a novel two-step nucleation process in the development of 2D monolayer transition metal dichalcogenide (TMD). This breakthrough allows for improved quality control and higher growth rates, enabling the synthesis of ultra-high quality TMD.
Borophene, a 2D version of boron, can be synthesized on hexagonal boron nitride using weak van der Waals forces. This method allows for easier removal and evaluation of the material for its plasmonic and photonic properties, as well as its electronic properties relevant to superconductivity.
Actin filaments generate pushing forces to move the cell membrane. The capping protein regulates filament growth, promoting branching near the membrane through the Arp2/3 complex. A high-resolution structure reveals that capping protein blocks nucleation-promoting factors via a tiny 'tentacle' extension.
Researchers at Hong Kong University of Science and Technology have discovered a non-classical nucleation process that can greatly facilitate ice formation on foreign surfaces. This finding has the potential to decelerate glacier melting and alleviate environmental concerns by predicting and controlling crystallization processes.
Researchers from the University of Jena have developed a hybrid membrane that prevents lithium dendrites and doubles the battery's lifetime. The membrane uses tiny pores to reduce ion transport, preventing dendrite nucleation.
Researchers at Lawrence Berkeley National Laboratory have discovered that gold atoms undergo rapid, reversible nucleation processes before forming stable crystals. Using advanced electron microscopy, they observed individual atoms falling apart and reorganizing multiple times before establishing a stable nucleus.
Researchers at Harvard's Wyss Institute develop programmable DNA self-assembly strategy for ultrasensitive diagnostic biomarker detection and scalable fabrication of micrometer-sized structures. The 'crisscross polymerization' approach enables robust nucleation control and growth to large sizes.
The solid electrolyte interphase (SEI) plays a critical role in ideal battery function, and researchers have studied its nucleation and growth in atomic detail. Anions and solvents must be well-balanced to form a homogeneous inorganic, crystalline SEI.
Researchers discover that organic molecules, commonly found in aerosols, can facilitate ice crystal formation in clouds. They also investigate a memory effect where second-round ice formation is more effective than the first, revealing crevices in the nucleant surface can hold onto small amounts of ice.
Researchers have observed the moment of initial crystal nucleation, revealing a stochastic fluctuation between disordered and crystalline states. The team proposed a new thermodynamic theory to explain this phenomenon, suggesting that energy barriers increase as crystals grow.
Researchers use novel techniques to observe salt crystal formation at the atomic level for the first time. The study confirms theoretical predictions about crystal formation and provides insight into polymorphism in crystal growth.
Researchers at ETH Zurich have gained new insights into aerosol formation by detecting volatile components for the first time. Volatile components were found to catalyze vapor nucleation, accelerating the process.
A new microscopy technique allows direct observation of droplet nucleation, enabling precise mathematical descriptions of the process. The technique improves contrast and resolution, revealing a different relationship between site density and nearest-neighbor function.
Researchers have successfully created supramolecular poly-catenanes through molecular self-assembly, forming hierarchical structures composed of interconnected rings. The nano-poly[n]catenanes exhibit unprecedented physical properties and potential applications in molecular machines and active materials.
A study by So Yoshikawa and Daisuke Matsunaka from Shinshu University elucidates the mechanism of non-basal slip systems in magnesium alloys, leading to improved ductility. The team used molecular dynamics simulations to analyze defect nucleation from I1-type stacking faults.
Researchers at UMass Amherst have identified an unexpected role for prion nucleation seeds that enhances their ability to appear and resist curing. The minimum size of the seed complex determines whether the disease can persist, and controlling this transformation could lead to a cure.
Researchers found that surface-active species significantly impact droplet formation, improving climate model accuracy. By accounting for curved surfaces and accurate thermodynamic models, they reduced discrepancies in predicted nucleation rates.
Monash University researchers improved aluminum alloy design by introducing specific crystal defects, enabling rapid nucleation of a strengthening phase. The study's findings have implications for lightweight alloys used in the aerospace industry.
Researchers at Tokyo University of Agriculture and Technology developed a new approach to detect crystallization signs without fluorescent labeling or tracking. They used particle image diffusometry to analyze microscopy movie data, revealing the collective motion of molecular clusters before nucleation.
Princeton researchers recreated a crucial cell division process outside a cell, uncovering the vital role of protein TPX2 in over 25% of all cancers. The team's findings reveal TPX2 facilitates efficient microtubule assembly and spindle formation by acting as a liquid-like molecule.
Researchers found that hydrodynamic interactions do not explain the large discrepancy between experimental and simulated nucleation rates in hard-sphere colloids. Their simulations using a reliable model showed that neglecting these interactions led to similar nucleation rates as with hydrodynamic interactions.
Researchers at Lehigh University found that surface thermodynamics plays a critical role in driving structural transformations between crystal structures, challenging kinetic effects as the primary explanation. This discovery has implications for controlling and predicting the structure produced in crystallization processes.
Biologists have directly observed and recorded branching microtubule nucleation in living fruit fly cells, a mechanism crucial to cell division. The technique enabled visualization of individual microtubules using TIRF microscopy, revealing that microtubule tips trigger the process.
Researchers develop new method to preserve human livers for transplantation, extending viability from 9 hours to up to 27 hours. The new protocol uses a combination of technologies to prevent ice nucleation and deliver protective solution uniformly throughout the organ.
Scientists find that the arrangement of water molecules on surfaces is crucial in determining ice formation. By understanding this relationship, researchers can design surfaces to promote or inhibit ice formation, leading to advancements in weather prediction and material development.
Scientists found that kinetic factors play a crucial role in calcium carbonate formation, especially in saline environments. The researchers' study suggests that considering both thermodynamics and kinetics can lead to more accurate predictions of mineral formation rates.
Scientists have discovered a natural defense against the deadly neurotoxin saxitoxin in bullfrogs, which could lead to the first-ever antidote for this compound. Additionally, researchers have captured atomic motion in 4D and identified a molecular switch that promotes IIL tolerance in bacteria, paving the way for better biofuels.
Researchers have discovered a new mechanism for the formation of strontium-rich barite in seawater, which could lead to more efficient methods for removing toxins from water. The study found that organic matter can create conditions that promote the nucleation and incorporation of strontium into barite precipitates.
A new study catalogs nearly 1.8 million tiny tremors in Southern California, filling gaps in the earthquake record and shedding light on geophysical processes. The analysis reveals that about 495 earthquakes occur each day in the region, with most being small and imperceptible.
Scientists have discovered how key proteins produced in bacteria and insects can either promote or inhibit the formation of ice. The study reveals that these proteins can be designed to nucleate ice at specific temperatures, enabling more accurate weather forecasts and potentially solving water scarcity issues. This breakthrough has si...
Researchers have discovered a persistent pattern in the arrangement of islands that form on crystal surfaces during layer-by-layer growth. The study uses coherent X-ray scattering to reveal correlations across the sample, providing insights into crystal growth dynamics and potential applications in materials science.