Current Surface Tension News and Events

Current Surface Tension News and Events, Surface Tension News Articles.
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Scientists identify flank instability at a volcano with history of collapse
Landslides caused by the collapse of unstable volcanoes are one of the major dangers of volcanic eruptions. A method to detect long-term movements of these mountains using satellite images could help identify previously overlooked instability at some volcanoes, according to Penn State scientists. (2021-01-26)

Microstructured optical fibers find their 3D-printed groove
Advanced laser-printing techniques prove ideal for creating tiny optical communication devices with complex internal structures. (2021-01-25)

How cells 'eat' their own fluid components
Autophagy is a fundamental cellular process by which cells capture and degrade their own dysfunctional or superfluous components for degradation and recycling. Recent research has revealed that phase separated droplets have a range of important functions in cells. An international collaboration between German, Norwegian, and Japanese researchers has unravelled the mechanisms underpinning both how these droplets are captured through autophagy, as well as how droplets can serve as a platform from which structures facilitating cytosolic autophagy arise. (2021-01-21)

Researchers develop new graphene nanochannel water filters
Brown University researchers have shown that tiny channels between graphene sheets can be aligned in a way that makes them ideal for water filtration. (2021-01-21)

Boosted photocatalysis for hydrogen evolution: Reactant supply thru phosphonate groups
Water splitting research for solar hydrogen production has focused on physical processes inside the semiconductor, such as light absorption, charge separation, and chemical processes on the surface that are highly complex and rely on the development of new materials. The concept proposed in this study is design of the electrolyte-photocatalyst interface. The approach of immobilizing functional groups near the solid-liquid interface can be a broad-ranging methodology that is effective regardless of the materials used. (2021-01-20)

How drain flies dodge a washout
Shower spray is like water off a duck's back to bathroom flies. (2021-01-19)

Zebra stripes, leopard spots: frozen metal patterns defy conventional metallurgy
''Stripy zebra, spotty leopard...'' Pattern formation and pattern recognition entertains children and scientists alike. Alan Turing's 1950s model explaining patterns in two-substance systems is used by metallurgists to explain microscopic internal stripes and spots. A study out today explains exotic patterns, counter to Turing's theory, forming on the liquid metal gallium, which melts in the hand. The previously ignored surface-solidification phenomenon improves fundamental understanding of liquid-metal alloys, with a potential patterning tool, and advanced applications in future electronics and optics. (2021-01-18)

Intertropical Convergence Zone limits climate predictions in the tropical Atlantic
The strongest climate fluctuation on time scales of a few years is the so-called El NiƱo phenomenon, which originates in the Pacific. A similar circulation pattern exists in the Atlantic, which scientists under the leadership of GEOMAR Helmholtz Centre for Ocean Research Kiel have studied in more detail. Their results, now published in the international journal Nature Communications, contribute to a better understanding of this climate fluctuation and pose a challenge for prediction models. (2021-01-15)

High-sensitivity nanophotonic sensors with passive trapping of analyte molecules in hot-spots
Optical sensing which captures fingerprint information of chemical or biological substances with light, plays a crucial role in many areas including environmental sensing, medical diagnostics and homeland security. Scientists from University at Buffalo demonstrated an optical sensor design which utilizes nano-scale trenches to passively concentrate and trap trace analytes in a solution, leading to the capability of detecting picogram level biomolecules such as glucose and amino acids. The devices also achieved effective trapping of nano-particles. (2021-01-13)

Infection biology: How one pathogen evades the immune system
A research team of Ludwig-Maximilians-Universitaet (LMU) in Munch led by Nicolai Siegel has uncovered a mechanism that enables the parasite that causes sleeping sickness in humans to escape the attention of the immune system. The finding may also be relevant to other infectious diseases. (2021-01-13)

Nanosheet-based electronics could be one drop away
A surprisingly simple method improves 'drop casting' fabrication of tiled nanosheets that could be used in next-generation electronic devices. All you need is a pipette and a hotplate. (2021-01-12)

Tissue stiffness likely drives immune responses in many chronic diseases
Stiffness in our tissues causes tension in our cells. Research shows that stiffness impacts the innate immune system by upping its metabolism. Buck Institute findings suggest the cellular tension likely sets off an inflammatory loop that contributes to the development of chronic diseases of aging. Researchers present an emerging way of looking at how the immune system functions, possibilities for new immunotherapeutics, and a call for scientists to reconsider the way they do experiments. (2021-01-12)

Wives bore the brunt of child care during the shutdown
Traditional gendered patterns of child care persisted during the COVID-19 shutdown, with more than a third of couples relying on women to provide most or all of it. (2021-01-12)

Ferrofluid surface simulations go more than skin deep
Computer models efficiently and accurately simulate the magnetic responses of ferrofluids by considering only the fluid's surface. (2021-01-10)

Nanocrystals that eradicate bacteria biofilm
POSTECH-UNIST joint research team finds ways to control the surface texture of nanostructures. (2021-01-08)

Imminent sudden stratospheric warming to occur, bringing increased risk of snow over coming weeks
A new study led by researchers at the Universities of Bristol, Exeter, and Bath helps to shed light on the winter weather we may soon have in store following a dramatic meteorological event currently unfolding high above the North Pole. Weather forecasting models are predicting with increasing confidence that a sudden stratospheric warming (SSW) event will take place today, 5 January 2021. (2021-01-05)

Nanoparticles could improve oil production
A team of scientists from Siberian Federal University together with their colleagues from Novosibirsk studied the effect of nanoparticles on oil production efficiency. When added to the water that displaces oil from a reservoir, nanoparticles improve the separation of oil drops from mine rock and their washing to the surface. The work received a grant from the Russian Science Foundation, and an article about it was published in the Journal of Molecular Liquids. (2020-12-22)

The mechanics of the immune system
Not only chemistry plays a role in the docking of antigens to the T-cell; micromechanical effects are important too. Submicrometer structures on the cell surface act like microscopic tension springs. Tiny forces that occur as a result are likely to be of great importance for the recognition of antigens. At TU Wien, it has now been possible to observe these forces directly using highly developed microscopy methods. (2020-12-21)

Scientists develop new land surface model including multiple processes and human activities
Researchers from the Institute of Atmospheric Physics developed a land surface model CAS-LSM that has improved the descriptions of biogeochemical process and urban modules, compared with the earlier version of this model. (2020-12-18)

Sound waves spin droplets to concentrate, separate nanoparticles
Mechanical engineers at Duke University have devised a method for spinning individual droplets of liquid to concentrate and separate nanoparticles for biomedical purposes. The technique is much more efficient than traditional centrifuge approaches, working its magic in under a minute instead of taking hours or days, and requires only a tiny fraction of the typical sample size. The invention could underline new approaches to applications ranging from precision bioassays to cancer diagnosis. (2020-12-18)

New topological properties found in "old" material of Cobalt disulfide
Researchers working with the Schoop Lab discovered the presence of Weyl nodes in bulk CoS2 that allow them to make predictions about its surface properties. The material hosts Weyl-fermions and Fermi-arc surface states within its band structure, which may enable it to serve as a platform for exotic phenomena. (2020-12-18)

Researchers use origami to solve space travel challenge
WSU researchers have used the ancient Japanese art of paper folding to possibly solve a key challenge for outer space travel - how to store and move fuel to rocket engines. The researchers have developed an origami-inspired, folded plastic fuel bladder that doesn't crack at super cold temperatures and could someday be used to store and pump fuel. (2020-12-15)

Scientists precisely predict intricate evolutions of multiple-period patterns in bilayers
Surface instability of compliant film/substrate bilayers has raised considerable interests due to its broad applications, yet it is still a challenge to precisely predict and continuously trace secondary bifurcation transitions in the nonlinear post-buckling region. Now researchers at Fudan University develop lattice models to precisely capture the nonlinear morphology evolution with multiple mode transitions that occur in film/substrate systems. (2020-12-15)

Tiny bubbles on electrodes key to speeding up chemical processes
New Curtin University-led research has shown the formation of bubbles on electrodes, usually thought to be a hindrance, can be beneficial, with deliberately added bubbles, or oil droplets, able to accelerate processes such as the removal of pollutants such as hydrocarbons from contaminated water and the production of chlorine. (2020-12-10)

Researchers identify the physical mechanism that can kill bacteria with gold nanoparticles
A multidisciplinary team of researchers have discovered that the mechanical deformation of bacteria is a toxic mechanism that can kill bacteria with gold nanoparticles. The results of this research are a breakthrough in researchers' understanding the antibacterial effects of nanoparticles and their efforts to find new materials with bactericide properties. (2020-12-10)

Let the sunshine in: self-cleaning membrane under visible light treatment
The Korea Institute of Science and Technology (KIST) reported that the research team led by Dr. Jeehye Byun and Director Seok Won Hong from Water Cycle Research Center developed a membrane material that self-cleans biological contaminants through irradiation of sunlight. According to the team, the newly developed membrane material is expected to significantly reduce the cost of membrane management as the membrane can be reused after just 10 minutes of sunlight irradiation. (2020-12-09)

Dynamics in the root zone
Nutrient contamination of groundwater as a result of nitrogen-based fertilisers is a problem in many places in Europe. Calculations by a team of scientists led by the UFZ have shown that over a period of at least four months per year, nitrate can leach into the groundwater and surface water on about three-quarters of Europe's agricultural land. The proportion of areas at risk from nitrate leaching is thus almost twice as large as previously assumed. (2020-12-09)

HKU research team invents novel light-controlled contamination-free fluidic processor
A mechanical engineering research team at the University of Hong Kong has invented a novel light-controlled, contamination-free fluidic processor, which can serve as a useful tool to greatly reduce the risk of infection of front-line medical workers in testing virus or bacteria in big pandemics like the current COVID-19 pandemic, and to minimise the risk of contamination during the process. The new technology has been published in Science Advances in an article titled 'Photopyroelectric Microfluidics'. (2020-12-08)

Math enables custom arrangements of liquid 'nesting dolls'
Princeton University researchers have developed a new way to examine, predict and engineer interactions between multiple liquid phases, including arrangements of mixtures with an arbitrary number of separated phases. (2020-11-30)

Scientists apply the METRIC model to estimate the land surface evapotranspiration in Nepal
Scientists apply the METRIC model to estimate the land surface evapotranspiration in Nepal (2020-11-24)

Palladium, meet copper: Skoltech researchers use machine learning to improve catalysts
Researchers from Skoltech and their colleagues from Germany and the US have studied the properties and behavior of a palladium-copper alloy under changing temperatures and hydrogen concentrations, with highly relevant implications of this research for catalyst design. The authors hope that their findings can open the door for designing metal alloys with better catalytic properties by taking into account dynamic changes in the composition and structure of materials at realistic operational conditions. (2020-11-17)

Relaxing cell divisions
During one lifetime, the human body experiences ten quadrillion cell divisions. This biological process is essential to form and maintain tissues and organs within the body. Now, Professor Carl-Philipp Heisenberg and his team at the Institute of Science and Technology Austria discovered how mechanical tension from surrounding tissue influences the division process. The scientists published their study in the journal Developmental Cell. This study presents an entirely new influence on cell division and could also be important for tumor research. (2020-11-17)

Oil droplet predators chase oil droplet prey
Oil droplets can be made to act like predators, chasing down other droplets that flee like prey mimicking behavior seen among living organisms. (2020-11-17)

Peel-off coating keeps desalination cleaner and greener
A polyelectrolyte coating enables clean seawater desalination systems without harmful chemicals. (2020-11-16)

A new diagnostic method predicts which cancer patients will respond to immunothe
An international group led by Dr Banafshe Larijani, an Ikerbasque researcher seconded to the Biofisika Institute (UPV/EHU-University of the Basque Country, CSIC), has developed a new diagnostic method making it possible to accurately predict which cancer patients will respond positively to immunotherapy. This method will allow oncologists to tailor treatment to each patient and avoid therapies that are not going to be successful. (2020-11-16)

RUDN University chemists developed cheap and eco-friendly surfactants
An international team including chemists from RUDN University suggested an economically feasible and environmentally friendly method to synthesize surfactants. The new compounds can become an eco-friendly alternative to traditional chemicals used in oil production, skincare products manufacture, and in the pharmaceutical industry to transport drugs to diseased body tissues. (2020-11-12)

Electrochemical oxygen evolution on Hf2B2Ir5 electrode material
Electrochemical oxygen evolution on Hf2B2Ir5 electrode material. (2020-11-11)

Silicone surface mimics topology, wettability of a real human tongue
The tongue helps people taste food, but structures on its surface also help them sense textures -- something that's also very important when savoring a meal. Now, researchers reporting in ACS Applied Materials & Interfaces have made a 3D silicone surface that, for the first time, closely mimics the surface features of the human tongue. The material could help food scientists study mechanical interactions of foods, liquids and medicines with the organ. (2020-11-11)

Getting single-crystal diamond ready for electronics
Researchers from Osaka University and collaborating partners polished single-crystal diamond to near-atomic smoothness without damaging it. This will improve the performance and sustainability of future electronics. (2020-11-10)

SwRI scientist studies tiny craters on Bennu boulders to understand asteroid's age
Last week NASA snagged a sample from the surface of asteroid Bennu, an Empire State Building-sized body that Southwest Research Institute scientists have helped map with nearly unprecedented precision. Using orbital data from the OSIRIS-REx spacecraft, researchers measured centimeter- to meter-sized craters on the boulders scattered around its rugged surface to shed light on the age of the asteroid. (2020-11-10)

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