Nano planet

Modified quantum dots capture more energy from light and lose less to heat

Nanowerk.com - 8 октября, 2019 - 09:45
Researchers discover a new approach for capturing energy from light-generated, 'hot' electrons, avoiding wasteful heat loss.
Категории: Nano planet

Electrode-fitted microscope points to better designed devices that make fuel from sunlight

ScienceDaily.com: Nanotechnology News - 7 октября, 2019 - 20:10
Using an atomic-force microscope fitted with an electrode tip 1,000 times smaller than a human hair, researchers have identified in real time how nanoscale catalysts collect charges that are excited by light in semiconductors. It's a discovery that could help efforts to design devices that can store solar power for later use.
Категории: Nano planet

Electrode-fitted microscope points to better designed devices that make fuel from sunlight

Nanowerk.com - 7 октября, 2019 - 19:33
Researchers find that smaller catalytic nanoparticles may be vital for many kinds of devices that convert solar energy into chemical fuels like hydrogen gas.
Категории: Nano planet

Bacteria trapped -- and terminated -- by graphene filter

ScienceDaily.com: Nanotechnology News - 7 октября, 2019 - 19:32
Chemists transform their laser-induced graphene into an air filter that not only traps pathogens but also kills them with a small blast of electricity.
Категории: Nano planet

Matryoshka-inspired hierarchically structured triboelectric nanogenerators for wave energy harvesting

Nanowerk.com - 7 октября, 2019 - 17:57
Ocean wave energy is an abundant resource of clean energy. However, having been explored for decades, there is still lacking efficient and economical technologies to convert water wave energy into electricity for large-scale applications Researchers have developed a new type of wave energy harvester, hierarchically structured triboelectric nanogenerator (HS-TENG), based on the triboelectric effect, targeting to harvest the huge blue energy for large-scale deployments.
Категории: Nano planet

Bacteria trapped - and terminated - by graphene filter

Nanowerk.com - 7 октября, 2019 - 17:22
Research team adapts laser-induced graphene to remove pathogens from the air.
Категории: Nano planet

Molecular nanocarbons with mechanical bonds

ScienceDaily.com: Nanotechnology News - 7 октября, 2019 - 17:04
Scientists have succeeded in synthesizing molecular nanocarbons with knots and catenanes by using a novel method in which silicon atoms are used. The epoch-making product of this research will pave the way to the development of new nanocarbon materials with complex geometric structures.
Категории: Nano planet

First video of viruses assembling (w/video)

Nanowerk.com - 7 октября, 2019 - 15:43
For the first time, researchers have captured images of the formation of individual viruses, offering a real-time view into the kinetics of viral assembly. The research provides new insights into how to fight viruses and engineer self-assembling particles.
Категории: Nano planet

Picoscience and a plethora of new materials

Nanowerk.com - 7 октября, 2019 - 15:34
The revolutionary tech discoveries of the next few decades, the ones that will change daily life, may come from new materials so small they make nanomaterials look like lumpy behemoths.
Категории: Nano planet

Physicists unlock the mystery of thermionic emission in graphene

Nanowerk.com - 7 октября, 2019 - 15:24
Researchers discover a new theory that paves the way for the design of better graphene electronics and energy converters.
Категории: Nano planet

Researchers develop unique material from marine bath sponge skeleton

Nanowerk.com - 7 октября, 2019 - 15:09
Researchers have deciphered the structure of a marine sponge skeleton and developed a novel three-dimensional composite material for the modern materials industry.
Категории: Nano planet

Microscope prints patterns at the nanoscale

Nanowerk.com - 7 октября, 2019 - 15:00
Researchers have successfully used an atomic force microscope to electrochemically print at the nanoscale. This technique can print structures for a new generation of solar cells on chips.
Категории: Nano planet

Molecular nanocarbons with mechanical bonds

Nanowerk.com - 7 октября, 2019 - 10:33
As the first step of precise synthesis of nanocarbons with complex topology, researchers have proposed 'topological molecular nanocarbons'.
Категории: Nano planet

Graphene transistor catches mycotoxins in food

Nanowerk.com - 4 октября, 2019 - 21:46
Researchers have developed a method for direct, point-of-use detection of mycotoxins in food. The method is based on the modification of electrolyte operated graphene filed effect transistors that have been specifically functionalized with aptamers by covalent binding. Demonstrating the performance of this method on Ochratoxin A, these sensors show a response time of within 5 minutes with a sensitivity down to 4 pg/ml - that is about three orders of magnitude less than accepted tolerance levels of Ochratoxin A.
Категории: Nano planet

New metasurface design can control optical fields in three dimensions

ScienceDaily.com: Nanotechnology News - 4 октября, 2019 - 21:38
A team led by scientists has designed and tested a 3D-printed metamaterial that can manipulate light with nanoscale precision. Their designed optical element focuses light to discrete points in a 3D helical pattern.
Категории: Nano planet

New metasurface design can control optical fields in three dimensions

Nanowerk.com - 4 октября, 2019 - 21:34
Scientists designed and tested a 3D-printed metamaterial that can manipulate light with nanoscale precision. Their designed optical element focuses light to discrete points in a 3D helical pattern.
Категории: Nano planet

The fast dance of electron spins

Nanowerk.com - 4 октября, 2019 - 18:23
Chemists investigate the interactions of metal complexes and light.
Категории: Nano planet

Determining the activity of noble-metal-free catalyst particles

ScienceDaily.com: Nanotechnology News - 4 октября, 2019 - 17:56
Chemists have developed a new method with which they can characterize individual noble-metal-free nanoparticle catalysts. The particles could be a cheap alternative to precious metal catalysts for obtaining hydrogen from water by means of electrolysis.
Категории: Nano planet

How to corrosion-proof thin atomic sheets

Nanowerk.com - 4 октября, 2019 - 14:13
Ultrathin coating could protect 2D materials from corrosion, enabling their use in optics and electronics.
Категории: Nano planet

Universal latent anion donors for ultralow work function solution-processable electrodes

Nanowerk.com - 4 октября, 2019 - 11:20
Scientists report the discovery of latent universal electron donors from common anions, like oxalate, which can potently transfer electrons to organic semiconductors, realising the dream to achieve electron injection layers with ultralow work functions which can yet be processed from solution in the ambient.
Категории: Nano planet