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Updated: 3 hours 29 min ago

Metal nanoclusters can be used as semiconductors: key properties observed for first time

Tue, 03/26/2019 - 14:13
Tiny nanoclusters of metal atoms - such as gold and silver - have properties, which mean they can be used as semiconductors. The finding opens the door to a wide range of potential new applications, from phone displays and flatter screens to wearable technology.
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Will cyborg circuits be made of melanin?

Tue, 03/26/2019 - 13:46
Scientists have achieved a billion-fold increase in the electrical conductivity of melanin, that could unleash its potential in safe, sustainable bioelectronics.
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Do nanomaterials affect pollinating insects?

Tue, 03/26/2019 - 13:38
There is concern that pollinating insects are at risk due to nanomaterial exposure. Pollinating insects like bees or bumblebees are potentially exposed to nanomaterials via aerosols, the pollen of contaminated plants and water droplets. Managed pollinators may be additionally exposed in the hives due to direct application of nanomaterials by beekeepers.
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Engineering cellular function without living cells

Tue, 03/26/2019 - 01:23
Scientists have come up with a systematic method for studying and even predicting gene expression - without using cells. Using their innovative, quantitative approach, they measured important parameters governing gene regulation. This allowed them to design and construct a synthetic biological logic gate, which could one day be used to introduce new functions into cells.
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Cellulose nanofiber hydrogel for enhanced cell encapsulation and delivery

Tue, 03/26/2019 - 01:01
Cellulose nanofibers hydrogel has great potential as a cell-encapsulation delivery carrier for sustained release of paracrine factors and for tissue regeneration, with unique versatility for injection, scaffolding, and 3D bioprinting.
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Nanocellulose-based material gives three sensors in one

Tue, 03/26/2019 - 00:52
Cellulose soaked in a carefully designed polymer mixture acts as a sensor to measure pressure, temperature and humidity -- at the same time. The measurements are completely independent of each other. The sensor may be highly significant in fields such as robotics, healthcare and security.
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Physicists shatter Bose-Einstein condensate, get different pieces every time

Tue, 03/26/2019 - 00:37
Physicists have shown that shaking ultracold Bose-Einstein condensates can cause them to either divide into uniform segments or shatter into unpredictable splinters, depending on the frequency of the shaking.
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Extremely accurate measurements of atom states for quantum computing

Tue, 03/26/2019 - 00:30
A new method allows the quantum state of atomic qubits to be measured with twenty times less error than was previously possible, without losing any atoms.
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Wood-based technology creates electricity from heat

Tue, 03/26/2019 - 00:22
Researchers have created a heat-to-electricity device that runs on ions and which could someday harness the body?s heat to provide energy.
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Gold soaks up boron, spits out borophene

Mon, 03/25/2019 - 17:35
In the heat of a furnace, boron atoms happily dive into a bath of gold. And when things get cool, they resurface as coveted borophene.
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Optimizing the energy production of photovoltaic panels using artificial intelligence

Mon, 03/25/2019 - 16:32
Researchers have developed a method based on artificial intelligence techniques that consider the atmospheric variations when designing the solar cells to produce more energy.
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Graphene transfer using an off-the-shelf office laminator

Mon, 03/25/2019 - 16:08
An international team of researchers has demonstrated a simple method for transferring A4-size sheets of CVD graphene from copper foils onto a target substrate using a commercially available polyvinyl alcohol (PVA) polymer foil as a carrier substrate and an off-the-shelf office laminator. This do-it-yourself approach requires few tools and low cost materials - it is safe and easy enough to be carried out in school physics classes. There are no chemicals involved besides water; no spinner; no dangerous etchants.
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Scientists squeeze catalysts inside host materials like a ship into a bottle

Mon, 03/25/2019 - 13:50
Scientists have found a way to place catalysts inside the tiniest pores of different host materials, a bit like when model ships are unfolded inside a bottle.
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Breakthrough in air purification with a catalyst that works at room temperature

Sat, 03/23/2019 - 11:35
Turning ammonia into harmless substances using gold nanoparticles on a metal oxide framework.
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Molecular modeling may accelerate the development of new organic materials for electronics

Sat, 03/23/2019 - 01:03
Scientists have developed a faster way of creating molecular models by using machine learning. The new models dramatically accelerate the screening of potential new organic materials for electronics and they could also be useful in other areas of materials science research.
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Chemicals induce dipoles to damp plasmons

Sat, 03/23/2019 - 00:56
A study finds that molecules alter gold nanoparticles' electronic properties.
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Optical tweezers combine with X-rays to enable analysis of crystals in liquids

Sat, 03/23/2019 - 00:48
Scientists have developed a new technique that combines the power of nanoscale 'tractor beams' with high-powered X-rays, enabling them to position and manipulate crystals in solution that are not in contact with substrates.
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4D-printed materials can be stiff as wood or soft as sponge

Fri, 03/22/2019 - 13:43
Engineers' unique smart materials change shape as temperatures change.
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How nanotechnology enables wearable electronics

Fri, 03/22/2019 - 06:53
Smart watches, fitness trackers, smart garments, smart medical attachments, data gloves - the market for wearable electronics is quickly evolving beyond health care, fitness and wellness into infotainment, and commercial and industrial applications. A review investigates the contribution of nanomaterials in the field of wearables with a focus on actuators and sensors. It discusses current applications of nanomaterials in this field and touch upon the different materials and methods being used.
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Nanomembrane could help regrow tissue lost to periodontal disease

Fri, 03/22/2019 - 02:16
Researchers report development of a membrane that helps periodontal tissue regenerate when implanted into the gums of rats.
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