RSS-материал Nanowerk Nanotechnology News
Nanotechnology news headlines from Nanowerk
Обновлено: 3 weeks 1 day назад

Fabricating nano- to macroscale hierarchical porous structures in a 3D printer

22 октября, 2019 - 18:42
Hierarchical structures, spanning multiple length scales from nano- to macroscales, are very common in nature; but only in recent years have they been systematically studied in materials science, in order to understand the specific effects they can have on the mechanical properties of various systems. Researchers have developed a straightforward, cost-efficient, and fast route to fabricate hierarchical porous structures in a 3D printer. With this technique they can process nanoporous materials and fabricate structures from nanometer to centimeter scale.
Категории: Nano planet

Unique properties of quantum material explained for first time

22 октября, 2019 - 18:34
Scientists have determined characteristics of a new, iron-containing type of material that is thought to have future applications in nanotechnology and spintronics.
Категории: Nano planet

Porous polymer coatings dynamically control light and heat

22 октября, 2019 - 18:17
New inexpensive, scalable design takes advantage of the optical switchability of porous polymers; could be used for heating, cooling, and lighting buildings, as well as camouflage applications.
Категории: Nano planet

Kirigami inspires new method for wearable sensors

22 октября, 2019 - 15:42
As wearable sensors become more prevalent, the need for a material resistant to damage from the stress and strains of the human body's natural movement becomes ever more crucial. To that end, researchers have developed a method of adopting kirigami architectures to help materials become more strain tolerant and more adaptable to movement.
Категории: Nano planet

Fragmented magnetism

22 октября, 2019 - 10:39
Spin-polarizing scanning tunneling microscopy allowed researchers to detect an elusive atomic-scale magnetic signal in a Mott insulator.
Категории: Nano planet

A cavity leads to a strong interaction between light and matter

21 октября, 2019 - 17:07
Researchers have succeeded in creating an efficient quantum-mechanical light-matter interface using a microscopic cavity. Within this cavity, a single photon is emitted and absorbed up to 10 times by an artificial atom. This opens up new prospects for quantum technology.
Категории: Nano planet

Atomic images reveal unusually many neighbors for some oxygen atoms in graphene

21 октября, 2019 - 16:34
Researchers have found unexpected new configurations of oxygen and nitrogen in graphene.
Категории: Nano planet

Silencing RNA nanotherapy shows promise against pancreatic cancer

21 октября, 2019 - 16:13
A preclinical study finds that the novel nanoparticle delivers gene-level treatment to suppress KRAS-driven cancer without adverse effects.
Категории: Nano planet

Schools of molecular 'fish' could improve display screens

21 октября, 2019 - 16:04
Take a dive into what may be the world's smallest coral reef. Scientists are using a type of material called liquid crystals to create incredibly small, swirling schools of 'fish'.
Категории: Nano planet

Environmental challenges and future perspectives of metal-oxide nanoparticles

21 октября, 2019 - 11:19
The increase in production and applications of metal-oxide nanoparticles (MO-NPs) raises concerns for the environment as well as for human health. The terrestrial environment, especially soil, is expected to be the largest repository for environmentally released MO-NPs. Therefore, the accurate determination of environmentally released MO-NPs is imperative to assess the real-time scenario of toxicity to soil biota and the threat to human beings via the food chain.
Категории: Nano planet

Transforming 2D Planes into 3D soft and flexible structures by engineering adhesion between thin-films

21 октября, 2019 - 10:40
Researchers have developed a technology to produce 3D soft and flexible devices by blowing balloons made of polymeric thin films. Can be made in various 3D shapes... Expected to have diverse medical and biomedical applications.
Категории: Nano planet

Pinpointing biomolecules with nanometer accuracy

21 октября, 2019 - 10:26
Scientists demonstrate a new approach in fluorescence microscopy that can be used to locate individual biomolecules in 3D space with nanometer-scale precision.
Категории: Nano planet

Flexible, wearable supercapacitors based on porous nanocarbon nanocomposites

20 октября, 2019 - 12:55
Evening gowns with interwoven LEDs may look extravagant, but the light sources need a constant power supply from devices that are as well wearable, durable, and lightweight. Scientists have manufactured fibrous electrodes for wearable devices that are flexible and excel by their high energy density.
Категории: Nano planet

Energy flow in the nano range

18 октября, 2019 - 11:59
It is crucial for photovoltaics and other technical applications, how efficiently energy spreads in a small volume. With new methods, the path of energy in the nanometer range can now be followed precisely.
Категории: Nano planet

Big improvements in thin-film solar cell efficiency now possible

18 октября, 2019 - 09:14
Researchers have developed a theoretical method to improve the efficiency of thin-film solar cells by up to 33 percent. Flexible thin-film solar cells are needed to supply electrical power to fabrics, clothing, back packs and anywhere that a local autonomous power supply is required.
Категории: Nano planet

How perovskite in solar cells recrystallizes and why modified carbon nanotubes can help overcome the reproducibility problem by making use of this

18 октября, 2019 - 09:08
Scientists conducted an in-depth study on how carbon nanotubes with oxygen-containing groups can be used to greatly enhance the performance of perovskite solar cells. The newly discovered self-recrystallization ability of perovskite could lead to improvement of low-cost and efficient perovskite solar cells.
Категории: Nano planet

Paving a way to achieve unexplored semiconductor nanostructures

18 октября, 2019 - 09:01
Researchers grew branched GaAs nanowires with a nontoxic Bi element employing characteristic structural modifications correlated with metallic droplets, as well as crystalline defects and orientations. The finding provides a rational design concept for the creation of semiconductor nanostructures with the concentration of constituents beyond the fundamental limit.
Категории: Nano planet

Researcher invents an easy-to-use technique to measure the hydrophobicity of micro- and nanoparticle

18 октября, 2019 - 08:52
Researchers have developed a method that allows for easy determination of the surface free energy of particles as a quantitative measure of particle hydrophobicity.
Категории: Nano planet

Double layer of graphene helps to control spin currents

17 октября, 2019 - 18:10
In order to make transistors that operate using the spin of electrons, rather than their charge, it is necessary to find a way of switching spin currents on and off. Furthermore, the lifetime of the spins should at least be equal to the time taken for these electrons to travel through a circuit. Scientists have now taken an important step forward by creating a device that meets both of these requirements.
Категории: Nano planet

Graphene nanobolometer - Physicists develop fast and sensitive mechanical tool to measure light

17 октября, 2019 - 17:21
The graphene nanomechanical bolometer is the fastest and most sensitive in its class; It is poised to detect nearly every color of light at high speeds and obtain measurements at and far above room-temperature.
Категории: Nano planet