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Preview: PHYSorg.com: Nanotechnology News

Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News



Phys.org provides the latest news on nanotechnology, nanoscience, nanoelectronics, science and technology. Updated Daily.



 



Improved polymer and new assembly method for ultra-conformable 'electronic tattoo' devices

Wed, 22 Feb 2017 09:20:02 EST

A group of researchers at Waseda University has developed processes and materials for ultrathin stick-on electronic devices using elastomeric "nanosheet" film, achieving ease of production while also preserving high elasticity and flexibility fifty times better than previously reported polymer nanosheets.



Real-time imaging of cell components including DNA

Wed, 22 Feb 2017 09:10:01 EST

Optical microscopes that use lenses to bounce photons off objects have trouble distinguishing nanometer-scale objects smaller than the imaging beam's wavelength, such as proteins and DNA. An innovative 'hyperlens' designed at A*STAR can overcome optical diffraction limits by capturing high-resolution information held by short-lived or evanescent waves lurking near a target's surface.



New polymer nanocomposites could improve solar cell durability

Wed, 22 Feb 2017 08:34:57 EST

The Polymer Nanocomposites Laboratory at Texas A&M University, directed by Dr. Jaime Grunlan, is working with scientists at the Sandia National Laboratory to reduce or eliminate arc faults and corrosion in solar cells. Corrosion in photovoltaic cells, which convert light into electricity, can damage connections and reduce or destroy the ability to generate electricity.



Scalable 100 percent yield production of conductive graphene inks

Wed, 22 Feb 2017 06:30:02 EST

Conductive inks are useful for a range of applications, including printed and flexible electronics such as radio frequency identification (RFID) antennas, transistors or photovoltaic cells. The advent of the internet of things is predicted to lead to new connectivity within everyday objects, including in food packaging. There is a clear need for cheap and efficient production of electronic devices using stable, conductive and non-toxic components.



Tiny nanoclusters could solve big problems for lithium-ion batteries

Tue, 21 Feb 2017 10:36:52 EST

As devices become smaller and more powerful, they require faster, smaller, more stable batteries. University of Illinois chemists have developed a superionic solid that could be the basis of next-generation lithium-ion batteries.



New approach for the capture of tumor-derived exosomes from a prostate cancer cell line

Tue, 21 Feb 2017 10:10:13 EST

In a new paper in Springer's Journal of Materials Science, researchers at Washington State University report a new approach for the effective capture of tumor-derived exosomes from a prostate cancer cell line. Exosomes are small secreted vesicles that play a key role in intercellular communication and cancer progression.



New nano approach could cut dose of leading HIV treatment in half

Tue, 21 Feb 2017 06:40:01 EST

Successful results of a University of Liverpool-led trial that utilised nanotechnology to improve drug therapies for HIV patients has been presented at the Conference on Retroviruses and Opportunistic Infections (CROI) in Seattle, a leading annual conference of HIV research, clinical practice and progress.



Nanostraws sample a cell's contents without damage

Tue, 21 Feb 2017 06:02:16 EST

Cells within our bodies divide and change over time, with thousands of chemical reactions occurring within each cell daily. This makes it difficult for scientists to understand what's happening inside. Now, tiny nanostraws developed by Stanford researchers offer a method of sampling cell contents without disrupting its natural processes.



Simple etching technique for creating left-handed and right-handed nanostructures

Mon, 20 Feb 2017 08:00:45 EST

Structures that just may be the world's smallest screws have been fabricated by researchers from Agency for Science, Technology and Research (A*STAR), Singapore.



Technique to characterize electrical potential distribution in composite electrodes of solid state lithium ion batteries

Mon, 20 Feb 2017 08:00:24 EST

Major advancement in understanding the cause of high resistivity at the electrode–electrolyte interfaces, which has been hindering the development of high power density batteries.



Virus inspires new way to deliver cancer drugs

Mon, 20 Feb 2017 07:49:53 EST

Drugs disguised as viruses are providing new weapons in the battle against cancer, promising greater accuracy and fewer side effects than chemotherapy.



Switched-on DNA: Sparking nano-electronic applications

Mon, 20 Feb 2017 05:00:01 EST

DNA, the stuff of life, may very well also pack quite the jolt for engineers trying to advance the development of tiny, low-cost electronic devices.



Breakthrough in understanding heat transport with a chain of gold atoms

Fri, 17 Feb 2017 06:01:29 EST

The precise control of electron transport in microelectronics makes complex logic circuits possible that are in daily use in smartphones and laptops. Heat transport is of similar fundamental importance and its control is for instance necessary to efficiently cool the ever smaller chips. An international team including theoretical physicists from Konstanz, Junior Professor Fabian Pauly and Professor Peter Nielaba and their staff, has achieved a real breakthrough in better understanding heat transport at the nanoscale. The team used a system that experimentalists in nanoscience can nowadays realize quite routinely and keeps serving as the "fruit fly" for breakthrough discoveries: a chain of gold atoms. They used it to demonstrate the quantization of the electronic part of the thermal conductance. The study also shows that the Wiedemann-Franz law, a relation from classical physics, remains valid down to the atomic level. The results were published in the scientific journal Science on 16 February 2017.



Liquid metal nano printing set to revolutionize electronics

Fri, 17 Feb 2017 05:00:01 EST

A new technique using liquid metals to create integrated circuits that are just atoms thick could lead to the next big advance for electronics.



Food additive found in candy, gum could alter digestive cell structure and function

Thu, 16 Feb 2017 16:06:10 EST

The ability of small intestine cells to absorb nutrients and act as a barrier to pathogens is "significantly decreased" after chronic exposure to nanoparticles of titanium dioxide, a common food additive found in everything from chewing gum to bread, according to research from Binghamton University, State University of New York.



Breakthrough in 'wonder' materials paves way for flexible tech

Thu, 16 Feb 2017 07:48:34 EST

Gadgets are set to become flexible, highly efficient and much smaller, following a breakthrough in measuring two-dimensional 'wonder' materials by the University of Warwick.



'Smart' mobile tool may be used to diagnose and treat serious diseases

Thu, 16 Feb 2017 07:19:42 EST

Finding practical solutions to detect proteins, cancer biomarkers, viruses and other small objects has been a key challenge for researchers worldwide for decades. These solutions hold promise for saving lives through more timely diagnosis and treatment of serious infections and diseases.



Using 'Scotch tape' and laser beams, researchers craft new material that could improve LED screens

Wed, 15 Feb 2017 17:19:17 EST

A cover story appearing in the peer-reviewed journal Nanoscale Horizons reports a new bilayer material, with each layer measuring less than one nanometer in thickness, that someday could lead to more efficient and versatile light emission.



New, ultra-flexible probes form reliable, scar-free integration with the brain

Wed, 15 Feb 2017 16:10:08 EST

Engineering researchers at The University of Texas at Austin have designed ultra-flexible, nanoelectronic thread (NET) brain probes that can achieve more reliable long-term neural recording than existing probes and don't elicit scar formation when implanted. The researchers described their findings in a research article published on Feb. 15 in Science Advances.



Engineers shrink microscope to dime-sized device

Wed, 15 Feb 2017 14:07:29 EST

Researchers at The University of Texas at Dallas have created an atomic force microscope on a chip, dramatically shrinking the size—and, hopefully, the price tag—of a high-tech device commonly used to characterize material properties.



How to roll a nanotube: Demystifying carbon nanotubes' structure control

Wed, 15 Feb 2017 13:00:07 EST

Pioneering research published in Nature by Professor Feng Ding's team from the Center for Multidimensional Carbon Materials, within the Institute for Basic Science (IBS), in collaboration with Professor Jin Zhang's team, at Peking University and colleagues, has demonstrated how to control the synthesis of special tiny carbon cylinders known as carbon nanotubes (CNTs), in order to synthesize horizontal arrays of CNTs with the same structure.



Scientists combine disciplines to pinpoint small structures in unlabeled molecules

Wed, 15 Feb 2017 10:50:47 EST

Five years of hard work and a little "cosmic luck" led Rice University researchers to a new method to obtain structural details on molecules in biomembranes.



Nanotechnology based gene editing to eradicate HIV brain reservoir in drug abusers

Wed, 15 Feb 2017 10:45:29 EST

Opiate abuse is a significant risk factor for HIV infection, and in combination they can have a devastating effect on the brain. Scientists at FIU Herbert Wertheim College of Medicine (HWCOM) are studying new therapies that can short-circuit HIV infection and mitigate the damaging effects that opiate addiction has on the central nervous system.



Making sodium-ion batteries that last

Wed, 15 Feb 2017 10:27:37 EST

Lithium-ion batteries have become essential in everyday technology. But these power sources can explode under certain circumstances and are not ideal for grid-scale energy storage. Sodium-ion batteries are potentially a safer and less expensive alternative, but current versions don't last long enough yet for practical use. Now, scientists have developed an anode material that enables sodium-ion batteries to perform at high capacity over hundreds of cycles, according to their report in the journal ACS Nano.



Team makes high-quality graphene with soybeans

Wed, 15 Feb 2017 09:41:29 EST

A breakthrough by CSIRO-led scientists has made the world's strongest material more commercially viable, thanks to the humble soybean.



New economic water-splitting catalyst, Ru@C2N

Wed, 15 Feb 2017 09:40:26 EST

UNIST scientists have developed an exiting new catalyst that can split water into hydrogen almost as good as platinum, but less costly and found frequently on Earth.



Plant-made virus shells could deliver drugs directly to cancer cells

Wed, 15 Feb 2017 08:54:01 EST

Viruses are extremely efficient at targeting and delivering cargo to cells. In the journal ACS Nano, researchers report they have harnessed this well-honed ability—minus the part that makes us sick—to develop virus-like nanoparticles to deliver drugs straight to affected cells. In lab tests, they show that one such particle can be produced in plants and it ferries small molecules to cancer cells.



New type of nanosensor detects DNA building blocks

Wed, 15 Feb 2017 08:49:35 EST

Researchers at Uppsala University and in Brazil have developed a new type of nanosensor that can detect single molecules. The nanosensor, comprising a combination of two different materials, has been used to identify the different building blocks in DNA.



Imaging technique for unique views of single molecules that conventional methods can't match

Wed, 15 Feb 2017 06:40:02 EST

Determining the exact configuration of proteins and other complex biological molecules is an important step toward understanding their functions, including how they bind with receptors in the body. But such imaging is difficult to do. It usually requires the molecules to be crystallized first so that X-ray diffraction techniques can be applied—and not all such molecules can be crystallized.



New iron oxide nanoparticles could help avoid a rare side effect caused by current contrast agents for MRI

Tue, 14 Feb 2017 16:21:23 EST

A new, specially coated iron oxide nanoparticle developed by a team at MIT and elsewhere could provide an alternative to conventional gadolinium-based contrast agents used for magnetic resonance imaging (MRI) procedures. In rare cases, the currently used gadolinium agents have been found to produce adverse effects in patients with impaired kidney function.