ScienceDaily.com: Nanotechnology News

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Nanotechnology news. From nanoscience to nanotechnology applications such as nanotechnology in medicine, read the latest news from leading research institutes.
Updated: 7 hours 11 min ago

Bringing the atomic world into full color

Tue, 10/17/2017 - 19:01
Scientists have developed a new way of visualizing the atomic world by turning data scanned by an atomic force microscope into clear color images. The newly developed method, which enables observation of materials and substances like alloys, semiconductors, and chemical compounds in a relatively short time, holds promise of becoming widely used in the research and development of surfaces and devices.
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Chemical treatment improves quantum dot lasers

Mon, 10/16/2017 - 21:26
One of the secrets to making tiny laser devices such as opthalmic surgery scalpels work even more efficiently is the use of tiny semiconductor particles, called quantum dots. In new research the ~nanometer-sized dots are being doctored, or 'doped,' with additional electrons, a treatment that nudges the dots ever closer to producing the desired laser light with less stimulation and energy loss.
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Nanoantenna arrays power a new generation of fluorescence-based sensors

Mon, 10/16/2017 - 20:21
Researchers have designed and tested a series of plasmonic nanoantenna arrays that could lead to the development of a new generation of ultrasensitive and low-cost fluorescence sensors that could be used to monitor water quality.
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Purple power: Synthetic 'purple membranes' transform sunlight to hydrogen fuel

Fri, 10/13/2017 - 17:19
A new way has been found to produce solar fuels by developing “synthetic purple membranes.” These membranes involve an assembly of lipid nanodiscs, man-made proteins, and semiconducting nanoparticles that, when taken together, can transform sunlight into hydrogen fuel.
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Mantis shrimp-inspired camera enables glimpse into hidden world

Fri, 10/13/2017 - 04:02
By mimicking the eye of the mantis shrimp, researchers have developed an ultra-sensitive camera capable of sensing both color and polarization. The bioinspired imager can potentially improve early cancer detection and help provide a new understanding of underwater phenomena, the researchers said. See a video of describing the study on YouTube.
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Experimental 'nano-chemo' particle to treat bladder cancer

Thu, 10/12/2017 - 18:37
Working with mice and rats, researchers have developed a way to successfully deliver nano-sized, platinum-based chemotherapy drugs to treat a form of bladder cancer called nonmuscle-invasive that is found in the lining of the organ and has not invaded deeper into bladder tissue. The tiny drug-infused particles, they say, potentially offer a less toxic clinical alternative to standard chemotherapy delivered intravenously or through a catheter inserted into the bladder.
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The secret to improving liquid crystal's mechanical performance

Wed, 10/11/2017 - 18:07
Researchers have theoretically calculated the static and dynamical properties of the Cottrell clouds, which form around edge dislocations in liquid crystals of the smectic A variety. This work could help, for example, to improve the lubricating performance of such liquid crystals.
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Solar-powered devices made of wood could help mitigate water scarcity crisis

Wed, 10/11/2017 - 06:45
Energy from the sun and a block of wood smaller than an adult's hand are the only components needed to heat water to its steaming point in these purifying devices.
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Gold 'nanoprobes' used to track blood flow in tiny vessels

Wed, 10/11/2017 - 04:01
Scientists have designed gold nanoparticles, no bigger than 100 nanometers, which can be coated and used to track blood flow in the smallest blood vessels in the body.
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Step toward creating planes that travel at hypersonic speed

Tue, 10/10/2017 - 23:29
A recent study could lead to a drastic decrease in flight times. The study is one of the first steps toward the creation of planes able to move at hypersonic speeds, five to 10 times the speed of sound.
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Machine learning translates 'hidden' information to reveal chemistry in action

Tue, 10/10/2017 - 20:41
Scientists have developed a new way to capture the details of chemistry choreography as it happens. The method -- which relies on computers that have learned to recognize hidden signs of the steps -- should help them improve the performance of catalysts to drive reactions toward desired products faster.
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Forget about it: A material that mimics the brain

Tue, 10/10/2017 - 20:40
Inspired by human forgetfulness -- how our brains discard unnecessary data to make room for new information -- scientists conducted a recent study that combined supercomputer simulation and X-ray characterization of a material that gradually 'forgets.' This could one day be used for advanced bio-inspired computing.
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Surgery: Sticking instead of stitching

Mon, 10/09/2017 - 17:32
In spite of medical advances, wound-related complications arising after operations can still be life-threatening. In order to avoid these complications in the future, a new nanoparticle-based tissue glue has been developed by researchers at Empa.
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A dash of gold improves microlasers

Fri, 10/06/2017 - 22:22
By attaching gold nanoparticles to the surface of a microlaser, researchers demonstrated a frequency comb that takes up less space and requires 1000 times less power than current comb technology.
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Energy against the current on a quantum scale, without contradicting the laws of physics

Fri, 10/06/2017 - 19:23
In a classical thermodynamic system, the heat current flows from the hotter body to the colder one, or electricity from the higher voltage to the lower one. The same thing happens in quantum systems, but this state can be changed, and the flow of energy and particles can be reversed if a quantum observer is inserted into the system.
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Paper-based supercapacitor uses metal nanoparticles to boost energy density

Thu, 10/05/2017 - 20:10
Using a simple layer-by-layer coating technique, researchers have developed a paper-based flexible supercapacitor that could be used to help power wearable devices. The device uses metallic nanoparticles to coat cellulose fibers in the paper, creating supercapacitor electrodes with high energy and power densities -- and the best performance so far in a textile-based supercapacitor.
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New nanoplatelets improve the brightness of LEDs, lasers and LCD screens, researchers show

Thu, 10/05/2017 - 18:35
New semiconductor nanoplatelets synthesized in laboratories can improve the brightness of LEDs, lasers and LCD screens of computers or televisions because they allow to minimize energy losses compared to current semiconductor materials.
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Light-activated nanoparticles can supercharge current antibiotics

Wed, 10/04/2017 - 22:26
Light-activated nanoparticles, also known as quantum dots, can provide a crucial boost in effectiveness for antibiotic treatments used to combat drug-resistant superbugs such as E. coli and Salmonella, new research shows.
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Nanoscale islands dot light-driven catalyst

Wed, 10/04/2017 - 20:22
Scientists have combined aluminum nanoparticles and smaller metal particles to create a versatile nanostructure that could lead to new applications for plasmonics. The technique allows for customizable surface chemistry and reactivity in one material.
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Fast-moving magnetic particles could enable new form of data storage

Mon, 10/02/2017 - 22:50
Researchers have shown that virtual particles known as skyrmions, discovered just a few years ago, hold promise as a new way of storing data -- one that could overcome fundamental limits that might otherwise be signaling the end of 'Moore's Law.'
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