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The lifetime of an evaporating liquid nanodroplet

Thu, 10/10/2019 - 15:02
Liquids evaporating into vapour is a daily occurrence, and yet the time it takes a liquid droplet to completely evaporate has remained a mystery. Researchers have analyzed this process down to the nanoscale to reveal fascinating new physics in the vapor's flow.
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Surprising size-confinement effect of magnetocaloric materials

Thu, 10/10/2019 - 10:37
Scientists found that size-confinement - going from macroscopic bulk samples towards nanoparticles - leads to drastic changes in the atomic structure of certain magnetocaloric materials: The change from positive thermal expansion at the macroscale towards a negative thermal expansion (NTE) at the nanoscale. NTE materials are of increasing technological interest mostly because of the idea of mixing them with a symmetric negative thermal expansion material in order to create a composite material which has near-zero thermal expansion. The nanoparticle shape is particularly suitable for the design of such composites.
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Scientists simplify lithium-sulfur battery production

Thu, 10/10/2019 - 08:55
Scientists have developed a novel approach to prepare next-generation lithium-sulfur cathodes, which simplifies the typically time-consuming and complicated process for producing them. This represents a promising step towards the commercialization of lithium-sulfur batteries.
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Nanoparticles may have bigger impact on the environment than previously thought

Wed, 10/09/2019 - 23:25
First-of-its-kind study shows that non-antibacterial nanoparticles can cause resistance in bacteria.
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Atomic-level imaging could offer roadmap to metals with new properties

Wed, 10/09/2019 - 20:28
A novel approach for metallurgists involves building an atomic resolution chemical map to help gain new insights into individual high-entropy alloys and help characterize their properties.
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Physicists couple key components of quantum technologies

Wed, 10/09/2019 - 19:41
Researchers develop an easy-to-produce interface between quantum emitters and nanophotonic networks.
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Graphene substrate improves the conductivity of carbon nanotube network

Wed, 10/09/2019 - 19:33
Researchers have combined graphene and single-walled carbon nanotubes into a transparent hybrid material with conductivity higher than either component exhibits separately.
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New production technique for high-performance polymer could make for better body armor

Wed, 10/09/2019 - 19:25
A team of researchers has found a new way to produce a polymer material called PBO, a product known commercially as Zylon that's used in bulletproof vests and other high-performance fabrics.
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How to quickly design a white LED?

Wed, 10/09/2019 - 16:16
Scientists introduce a radically new design principle that is based on an analytical model instead of a numerical approach. The model predicts a white LED's color point for any combination of design parameters and allows for a much faster design, by up to a 1 000 000 times, resulting in reduced design and production costs.
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Travelling light with the first environmentally friendly graphene smart-case

Wed, 10/09/2019 - 13:41
A prototype for a graphene-based smart suitcase made of 100% of recycled plastic has been developed.
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How to make biocatalysts immortal with dendrimers

Wed, 10/09/2019 - 11:45
Oxygen threatens sustainable catalysts that use hydrogen to produce electricity in fuel cells. Researchers have developed a way to combat this.
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The Periodic Table of Elements in the age of nanotechnology

Wed, 10/09/2019 - 10:43
2019 marks the 150th anniversary of the Periodic Table, a unique tool, enabling scientist to predict the appearance and properties of matter on the Earth and in the the Universe. Different elements have played critical roles in different periods of human activities, with silicon (Si) being a key element, at present. However, the nanotechnology age has brought different elements into the limelight and transformed their roles in science and technology. A recent article discusses the most relevant elements from a nanotechnology perspective and their applications in nanomaterials.
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Photocatalytic hydrogen production from water

Wed, 10/09/2019 - 10:24
Chemists have developed carbon-conjugated covalent organic frameworks for visible light-driven catalytic production of hydrogen gas from water.
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Location, Location, Location - How charge placement can control a self-assembled structure

Tue, 10/08/2019 - 21:26
Researchers have achieved precise and predictable control of molecular chains by positioning charges. Their method leads to particles with reproducible sizes.
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New optical system can measure flowing liquids as small as 10 nanoliters per minute

Tue, 10/08/2019 - 20:04
Researchers have developed an optical system that accurately measures the flow of extraordinarily tiny amounts of liquids - as small as 10 billionths of a liter (nanoliters) per minute.
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Cooling nanotube resonators with electrons

Tue, 10/08/2019 - 19:41
Scientists report on a technique that uses electron transport to cool a nanomechanical resonator near the quantum regime.
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Creating a single phonon in ambient conditions

Tue, 10/08/2019 - 16:51
In a new experiment, physicists have shown that a single phonon can be excited and detected at room temperature and in the air, making the quantum behaviour of vibrating matter more tangible.
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A promising route to scalable quantum photonics

Tue, 10/08/2019 - 16:13
Scientists have integrated single photon emitters in 2D layered materials with a silicon nitride photonic chip.
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New 'supercondensers' store electric charge in textile materials

Tue, 10/08/2019 - 13:55
Researchers have developed new devices that store electric charge in textile materials, which could be used to, for example, charge our mobile phone.
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Flexible, biocompatible nanocellulose sensors

Tue, 10/08/2019 - 12:32
Researchers have developed flexible, biocompatible nanocellulose sensors that can be attached to the skin. The 3D-printed analytic chips made of renewable raw materials will even be biodegradable in future.
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