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 59 min ago

Nanostructures control heat transfer

Sun, 12/17/2017 - 00:42
For the first time, scientists have succeeded in precisely controlling temperature-dependent thermal conductivity with the help of polymer materials. These advanced functional materials were initially produced for laboratory experiments. The findings are of great relevance to the development of new concepts of thermal insulation.
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3-D nanoscale imaging made possible

Fri, 12/15/2017 - 20:16
Imaging at the nanoscale is important to a plethora of modern applications in materials science, physics, biology, medicine and other fields. Limitations of current techniques are, e.g. their resolution, imaging speed or the inability to look behind opaque objects with arbitrary shapes. Scientists have now demonstrated a method for meeting this challenge with stunning properties.
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Nanoparticles as a solution against antibiotic resistance?

Fri, 12/15/2017 - 18:44
Scientists have succeeded in developing an efficient method to treat mucoviscidosis. Crucial are nanoparticles that transport the antibiotics more efficiently to their destination. First of all, the active particles need to have a certain size to be able to reach the deeper airways and not to bounce off somewhere else before. Ultimately, they have to penetrate the thick layer of mucus on the airways as well as the lower layers of the bacteria biofilm.
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First-of-its-kind chemical oscillator offers new level of molecular control

Fri, 12/15/2017 - 03:18
Researchers successfully constructed a first-of-its-kind chemical oscillator that uses DNA components. DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
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Nanoparticle staircase: Atomic blasting creates new devices to measure nanoparticles

Thu, 12/14/2017 - 23:45
A standard machining technique has been used to fabricate a 'nanofluidic staircase' that allows precise measurement of the size of nanoparticles in a liquid, report scientists.
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Spaghetti-like, DNA 'noodle origami' the new shape of things to come for nanotechnology

Thu, 12/14/2017 - 23:03
Scientists have invented a major new advance in DNA nanotechnology. Dubbed 'single-stranded origami,' their new strategy uses one long, thin noodle-like strand of DNA, or its chemical cousin RNA, that can self-fold -- without even a single knot -- into the largest, most complex structures to date. The strands forming these structures can be made inside living cells, opening up the potential for nanomedicine.
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Accelerating the self-assembly of nanoscale patterns for next-generation materials

Wed, 12/13/2017 - 22:04
Scientists have come up with a way to massively speed up the ordering process for self-assembling materials. The resulting ultra-small, well-ordered patterns could be used in the fabrication of microelectronics, antireflective surfaces, magnetic data storage systems, and fluid-flow devices.
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Engineers create plants that glow

Wed, 12/13/2017 - 20:58
By embedding nanoparticles into the leaves of watercress, engineers have induced the plant to give off dim light for nearly four hours. They believe engineered plants will one day be bright enough to act as desk lamps or street lights.
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Nanotexturing creates bacteria-killing spikes on stainless steel surfaces

Wed, 12/13/2017 - 18:56
By using an electrochemical etching process on a common stainless steel alloy, researchers have created a nanotextured surface that kills bacteria while not harming mammalian cells. If additional research supports early test results, the process might be used to attack microbial contamination on implantable medical devices and on food processing equipment made with the metal.
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Improving cyber security in harsh environments

Wed, 12/13/2017 - 18:53
Many people don't worry about the security of their personal information until it's too late. And protecting data is even more important for military personnel, whose lives could be in danger if some types of information were to get into the wrong hands. Now, one group reports a new way to protect data, especially when it is subjected to extreme environmental conditions.
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Engineers create artificial graphene in a nanofabricated semiconductor structure

Wed, 12/13/2017 - 03:41
Experts at manipulating matter at the nanoscale have made an important breakthrough in physics and materials science. They have engineered "artificial graphene" by recreating, for the first time, the electronic structure of graphene in a semiconductor device.
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Researchers make solid ground toward better lithium-ion battery interfaces

Tue, 12/12/2017 - 23:14
New research has identified a major obstacle to advancing solid-state lithium-ion battery performance in small electronics: the flow of lithium ions across battery interfaces.
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Visualizing single molecules in whole cells with a new spin

Tue, 12/12/2017 - 21:54
Scientists have adapted DNA-PAINT technology to microscopes that are widespread among cell biology laboratories, called confocal microscopes, and that are used by researchers to image whole cells and thicker tissues at lower resolution. They have demonstrated that the method can visualize a variety of different molecules, including combinations of different proteins, RNAs and DNA throughout the entire depth of whole cells at super-resolution.
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Simpler way to deposit magnetic iron oxide onto gold nanorods

Tue, 12/12/2017 - 04:27
Researchers have found a simpler way to deposit magnetic iron oxide (magnetite) nanoparticles onto silica-coated gold nanorods, creating multifunctional nanoparticles with useful magnetic and optical properties.
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Two holograms in one surface

Tue, 12/12/2017 - 04:27
Engineers have developed a way to encode more than one hologram in a single surface with no loss of resolution.
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Scientists pioneer new way to analyze ancient artwork

Mon, 12/11/2017 - 23:59
Scientists have used a combination of three advanced imaging techniques to produce a highly detailed analysis of a second century Egyptian painting. They are the first to use the specific combination -- which they termed "macroscale multimodal chemical imaging" -- to examine an ancient work of art.
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Glass with switchable opacity could improve solar cells and LEDs

Mon, 12/11/2017 - 23:57
Researchers have created glass that lets through a large amount of light while appearing hazy, a combination of properties that could help boost the performance of solar cells and LEDs.
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A diamond as the steppingstone to new materials, using plasma physics technology

Mon, 12/11/2017 - 23:08
Physicists have taken the first step in a five-year effort to create novel compounds that surpass diamonds in heat resistance and nearly rival them in hardness. Reserachers investigated how the addition of boron, while making a diamond film via plasma vapor deposition, changed properties of the diamond material.
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New world standard in nano generators

Mon, 12/11/2017 - 23:04
Engineers have developed a new way to produce electrical power that can charge handheld devices or sensors that monitor anything from pipelines to medical implants. The discovery sets a new world standard in triboelectric nanogenerators by producing a high-density DC current -- a vast improvement over low-quality AC currents produced previously. The devices can transform mechanical energy such as wind or vibrations into electricity.
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Midwife and signpost for photons

Mon, 12/11/2017 - 23:04
Targeted creation and control of photons: This should succeed thanks to a new design for optical antennas.
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