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Categories: Engineering: Nanotechnology, Geoscience: Geology

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Engineering: Nanotechnology
Published

Towards crack-resistant nanoparticle-based latex films      (via sciencedaily.com) 

Synthetic latex films are widely used across many fields, but they usually contain harmful additives to enhance their strength. In a recent study, researchers have developed a new class of latex films composed of rotaxane-crosslinked acrylic nanoparticles. These films exhibit remarkable mechanical properties, including excellent crack-propagation resistance without any additives, and are easily recyclable, paving the way for more environmentally friendly materials.

Engineering: Nanotechnology
Published

Bound states in the continuum is possible in the acoustoelastic coupling      (via sciencedaily.com) 

Professor Junsuk Rho's research team at POSTECH reveals a physical phenomenon for vibration focusing and energy storage

Geoscience: Environmental Issues Geoscience: Geology Paleontology: Climate Paleontology: General
Published

Crawford Lake, Canada, chosen as the primary marker to identify the start of the Anthropocene epoch      (via sciencedaily.com)     Original source 

An international team of researchers has chosen the location which best represents the beginnings of what could be a new geological epoch, the Anthropocene. The Anthropocene Working Group have put forward Crawford Lake, in Canada, as a Global Boundary Stratotype Section and Point (GSSP) for the Anthropocene. A GSSP is an internationally agreed-upon reference point to show the start of a new geological period or epoch in layers of rock that have built up through the ages.

Engineering: Nanotechnology
Published

Making headway in precision therapeutics with novel fully organic bioelectronic device      (via sciencedaily.com) 

Researchers have announced that they have developed the first stand-alone, conformable, fully organic bioelectronic device that can not only acquire and transmit neurophysiologic brain signals, but can also provide power for device operation.

Geoscience: Geology Paleontology: Fossils Paleontology: General
Published

Scientists discover 36-million-year geological cycle that drives biodiversity      (via sciencedaily.com)     Original source 

Movement in the Earth's tectonic plates indirectly triggers bursts of biodiversity in 36 million-year cycles by forcing sea levels to rise and fall, new research has shown.

Ecology: Endangered Species Geoscience: Geology Paleontology: Climate Paleontology: General
Published

Global cooling caused diversity of species in orchids, confirms study      (via sciencedaily.com)     Original source 

Research shows global cooling of the climate 10 million years ago led to an explosion of diversity in terrestrial orchids.

Engineering: Nanotechnology
Published

Light-activated molecular machines get cells 'talking'      (via sciencedaily.com) 

Scientists have used light-activated molecular machines to induce cell-to-cell calcium signaling, revealing a powerful new strategy for drug design. This technology could lead to improved treatments for people with heart problems, digestive issues and more.

Engineering: Nanotechnology Engineering: Robotics Research
Published

Chemists create the microspine with shape-transforming properties for targeted cargo delivery at microscale      (via sciencedaily.com) 

With the goal of advancing biomimetic microscale materials, the research team has developed a new method to create microscale superstructures, called MicroSpine, that possess both soft and hard materials which mimic the spine structure and can act as microactuators with shape-transforming properties. This breakthrough was achieved through colloidal assembly, a simple process in which nano- and microparticles spontaneously organize into ordered spatial patterns.

Engineering: Nanotechnology Physics: Quantum Computing
Published

Researchers grow precise arrays of nanoLEDs      (via sciencedaily.com) 

A new platform enables researchers to 'grow' halide perovskite nanocrystals with precise control over the location and size of each individual crystal, integrating them into nanoscale light-emitting diodes.

Geoscience: Geology Space: The Solar System
Published

Why the day is 24 hours long: Astrophysicists reveal why Earth's day was a constant 19.5 hours for over a billion years      (via sciencedaily.com)     Original source 

Astrophysicists have revealed how the slow and steady lengthening of Earth's day caused by the tidal pull of the moon was halted for over a billion years. They show that from approximately two billion years ago until 600 million years ago, an atmospheric tide driven by the sun countered the effect of the moon, keeping Earth's rotational rate steady and the length of day at a constant 19.5 hours. Without this billion-year pause in the slowing of our planet's rotation, our current 24-hour day would stretch to over 60 hours. The paper offers a new perspective on how global warming will affect the length of our day and validates global circulation models as a climate modelling tool.

Geoscience: Earthquakes Geoscience: Geology
Published

Earth's Inner Core: Earth's solid metal sphere is 'textured'      (via sciencedaily.com)     Original source 

Scientists used seismic data discovered Earth's inner core displays a variety of textures that it acquired will it formed from within the fluid outer core. The data set was generated over the past 27 years by a network of seismometers set up to enforce the nuclear test ban treaty.

Energy: Batteries Engineering: Nanotechnology
Published

Nanosheet technology developed to boost energy storage dielectric capacitors      (via sciencedaily.com) 

A research group has used nanosheet technology to develop a dielectric capacitor for advanced electronic and electrical power systems. Innovations in energy storage technology are vital for the effective use of renewable energy and the mass production of electric vehicles. The capacitor has the highest energy storage density recorded. It has a short charging time, high output, long life, and high temperature stability, making it a major advancement in technology.

Engineering: Nanotechnology
Published

Chemists discover why photosynthetic light-harvesting is so efficient      (via sciencedaily.com) 

Chemists have measured the energy transfer between photosynthetic light-harvesting proteins. They discovered that the disorganized arrangement of light-harvesting proteins boosts the efficiency of the energy transduction.

Geoscience: Earthquakes Geoscience: Geology
Published

Water storage capacity in oceanic crust slabs increases with age, researchers find      (via sciencedaily.com)     Original source 

An international research team has discovered that a subduction zone's age affects the ability for it to recycle water between the Earth's surface and its inner layers. The more mature the subduction zone, the bigger the water storage capacity.

Engineering: Nanotechnology
Published

Researchers demonstrate single-molecule electronic 'switch' using ladder-like molecules      (via sciencedaily.com)     Original source 

Researchers have demonstrated a new material for single-molecule electronic switches, which can effectively vary current at the nanoscale in response to external stimuli. The material for this molecular switch has a unique structure created by locking a linear molecular backbone into a ladder-type structure. A new study finds that the ladder-type molecular structure greatly enhances the stability of the material, making it highly promising for use in single-molecule electronics applications.

Engineering: Nanotechnology
Published

Chemists develop new method to create chiral structures      (via sciencedaily.com)     Original source 

In trying to produce artificial chirality in the lab, chemists have found that the distribution of a magnetic field is itself chiral.

Geoscience: Earthquakes Geoscience: Geology Geoscience: Volcanoes Paleontology: Climate
Published

Research reveals sources of CO2 from Aleutian-Alaska Arc volcanoes      (via sciencedaily.com)     Original source 

Scientists have wondered what happens to the organic and inorganic carbon that Earth's Pacific Plate carries with it as it slides into the planet's interior along the volcano-studded Ring of Fire. A new study suggests a notable amount of such subducted carbon returns to the atmosphere rather than traveling deep into Earth's mantle.

Geoscience: Geology Geoscience: Volcanoes Paleontology: Climate
Published

Climate change will increase impacts of volcanic eruptions      (via sciencedaily.com)     Original source 

Volcanic disasters have been studied since Pompeii was buried in 79 A.D., leading the public to believe that scientists already know why, where, when and how long volcanoes will erupt. But a volcanologist said these fundamental questions remain a mystery.

Geoscience: Earthquakes Geoscience: Geology Paleontology: General
Published

Researchers unearth the mysteries of how Turkey's East Anatolian fault formed      (via sciencedaily.com)     Original source 

An international team has, for the first time, accurately determined the age of the East Anatolian fault, allowing geologists to learn more about its seismic history and tendency to produce earthquakes.

Engineering: Graphene Engineering: Nanotechnology Offbeat: Computers and Math
Published

'Electronic skin' from bio-friendly materials can track human vital signs with ultrahigh precision      (via sciencedaily.com)     Original source 

Researchers have used materials inspired by molecular gastronomy to create smart wearables that surpassed similar devices in terms of strain sensitivity. They integrated graphene into seaweed to create nanocomposite microcapsules for highly tunable and sustainable epidermal electronics. When assembled into networks, the tiny capsules can record muscular, breathing, pulse, and blood pressure measurements in real-time with ultrahigh precision.