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Mittwoch, 18. November 2020 00:00:00 Technik News
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Researchers report a combination of alkyne tags and surface-enhanced Raman scattering (SERS) microscopy for following the dynamics of small-molecule drugs in cells.

Researchers have developed a theory of piezoelectrics with the goal to increase coherence times in quantum computers. In new work, they elucidate the mechanism of energy absorption taking place in quantum computers, and recommends optimal materials for these devices. The new theory predicts qubit coherence times that are over 100 times greater than the current state of the art. This shows that material improvements can go a long way towards improving the quality of quantum computing devices, bringing quantum advantage one step closer.

Prototype tech shrinks AI to deliver brain-like functionality in one powerful device.

Scientists develop an energy-efficient strategy to reversibly change spin orientation or magnetization direction in magnetite at room temperature.

The quantum dynamics of hydrogen is central to many problems in nature, being strongly influenced by the environment in which it takes place. Scientists address hydrogen transfer within a supported molecular switch, showing that the surface support can play a decisive role in the tunneling reaction.

Scientists have created the largest defect-free membranes reported to date that fully exploit the unique mass transport properties of carbon nanotubes as flow channels.

Researchers have developed a new coating material for semiconductors that may create new opportunities to produce fuels in processes that combine direct sunlight with electricity.

Bioplastic has some apparent advantages: it is usually made from recycled material or plant cellulose, it can be biodegradable - or both. But a new study shows that it is not non-toxic.

Researchers have designed DNA-based nanogels that only break down and release their chemotherapeutic contents within cancer cells, minimizing the impacts on normal ones and potentially eliminating painful and uncomfortable side effects.

Findings could inform design of environmental technologies behind water purification processes and electric energy storage.

An international team of scientists has defied nature to make diamonds in minutes in a laboratory at room temperature - a process that normally requires billions of years, huge amounts of pressure and super-hot temperatures.

Scientists have discovered a rare object called the Blue Ring Nebula, a ring of hydrogen gas with a star at its center. The properties of this system suggest it is the remnant of two stars meeting their ultimate demise: an inward orbital dance that resulted in the two stars merging. The result offers a new window into the fate of many tightly orbiting binary star systems.

Surgeons will soon have a powerful new tool for planning and practice with the creation of the first full-sized 3D bioprinted model of the human heart.

Researchers have used experiments and simulations to find out by what means MOFs can be rendered flexible and why: they tricked the system by using clever chemical manipulations to enable a variety of energetically similar arrangements in the crystalline order.

A new way to arrange very small materials with perfect control could lead to more secure banknotes and passports, and quicker detection of harmful gas through a clever use of light.

The proposed device, with a theoretical operating energy budget less than 10 attojoules, uses a differential architecture to compensate for environmental variations and the device can retain sensed information for durations ranging from hours to days.

Researchers have found that removing random doping in quantum electronic devices dramatically improves their reproducibility - a key requirement for future applications such as quantum-information processing and spintronics.

An international team of astrophysicists has succeeded in reconstructing the first complete family tree of our home galaxy by analysing the properties of globular clusters orbiting the Milky Way with artificial intelligence.

In this study, by using operando X-ray absorption spectroscopy and high-resolution transmission electron microscopy imaging, the researchers revealed a full landscape of the biphasic structural transformation occurring at the nodes inside Ni and Co bimetallic MOF during OER.

NASA estimates the Milky Way contains hundreds of millions of potentially habitable planets.

The industrial production of ammonia mostly relies on the energy-intensive Haber-Bosch process, which causes significant environmental pollution. Researchers have now proposed that a class of 2D transition metal borides termed MBenes - the boron-analogues of MXenes - could be used as catalyst for ammonia production through electrochemical nitrogen reduction reaction (NRR). This work also provides a general design principle for further exploration of an even broader composition space of MBenes and other 2D NRR electrocatalysts.

The optoelectronic properties of various carbon allotropes and nanomaterials have been well established, while the purely sp-hybridized carbyne remains synthetically inaccessible. Its properties have therefore frequently been extrapolated from those of defined oligomers.

Scientists have developed a scalable electrochemical exfoliation method to synthesise two-dimensional (2D) superconducting material for use in printing technologies.

Researchers have achieved a nearly 90% efficiency converting light energy into surface waves on graphene. They relied on a laser-like energy conversion scheme and collective resonances.

Researchers succeeded in creating a new class of hybrid glass materials that combine organic and inorganic components. To do this, the scientists use special material combinations in which chemical bonds between organometallic and inorganic glasses can be generated.

Sometimes, the inside of a material can determine what happens on the outside. A team of physicists has devised a new way to make use of this general truth, in particular in systems that do not conserve energy.

Scientists have not only been able to explain how nanostructures in thermoelectric materials can improve energy efficiency but they also propose a commercially more attractive way to manufacture nanostructured thermoelectric materials, increasing the chances for mass-production of thermoelectric energy.

Scientists have developed a photodiode using a crystalline film composed of lead perovskite compounds with organic chiral molecules to detect circularly polarized light without a filter. It is expected as a technology for visualization of the invisible change of object surfaces such as stress intensity and distribution.

Researchers have developed a groundbreaking method to detect the dynamics of light on such a small scale with high temporal resolution.

Fast radio bursts, unpredictable millisecond-long radio signals seen at huge distances across the universe, are generated by extreme stars called magnetars - and are astonishingly diverse in brightness.

Scientists have reported a new optical imaging technology, using a glass side covered with gold nanodiscs that allows them to monitor changes in the transmission of light and determine the characteristics of nanoparticles as small as 25 nanometers in diameter.

Theoretical researchers have found a way to make quantum sensors exponentially more sensitive by harnessing a unique physics phenomenon.

Researchers have demonstrated light transport-assisted information processing by creating a pearl spectrometer.

Scientists reveal a phenomenon that is 'radically different from textbook physics' and this work has led to the discovery and characterisation of a new family of quasiparticles found in graphene-based materials. Called Brown-Zak fermions these extraordinary particles have the potential to achieve the Holy Grail of 2D materials by having ultra-high frequency transistors which can in turn produce a new generation of superfast electronic devices.

Generally it is believed that core quantum dots (QDs) are good reducing agents and are used for that purpose in solar hydrogen generation and various organic transformations. However, core QDs are very unstable. Core/shell dots are more robust, but the shell minimizes redox activity. Researchers now demonstrate that this isn't perfectly true. In fact, they found that certain core/shell materials are a better reducing agent than the core alone. Most importantly, core/shell QDs are substantially more robust than the core alone.

A new project has been set up to develop an immunologic-based treatment strategy where cancer cells are reprogrammed to become 'visible' to the patient's immune system.

The formation of the solar system may be a long time ago, but it was not an exceptionally long process according to an international research team of planetologists.

Scientists determined that simple, post-synthetic structural modifications can greatly influence the photocatalytic activity of carbon nitrides.

Researchers have developed an ultra-sensitive, seriously resilient strain sensor that can be embedded in textiles and soft robotic systems.

Scientists synthesize sub-nanometer particles with precisely controlled proportions of indium and tin using specific macromolecular templates called dendrimers. Through a screening process spanning different metallic ratios, they discovered unusual electronic states and optical properties originating from size-miniaturization and elemental-hybridization.