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Preview: Brightsurf Science News :: Nanotechnology News

Nanotechnology Current Events and Nanotechnology News from Brightsurf

Nanotechnology Current Events and Nanotechnology News Events, Discoveries and Articles from Brightsurf

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New type of opal formed by common seaweed discovered

Tue, 17 Apr 18 00:13:20 -0700

Scientists have discovered a completely new type of opal formed by a common seaweed which harnesses natural technology by self-assembling a nanostructure of oil droplets to control how light reflects from its cells to display a shimmering array of colours that until now, has only been seen in the gem stone.

Psst! A whispering gallery for light boosts solar cells

Fri, 13 Apr 18 00:10:20 -0700

Trapping light with an optical version of a whispering gallery, researchers at the National Institute of Standards and Technology (NIST) have developed a nanoscale coating for solar cells that enables them to absorb about 20 percent more sunlight than uncoated devices.

Sensing interactions between molecules

Wed, 11 Apr 18 00:02:30 -0700

An experimental approach to visualize structures of organic molecules with exceptional resolution is reported by physicists and chemists from the University of Münster, Germany. The study is published in the scientific journal

Scientists use carbon nanotube technology to develop robust water desalination membranes

Wed, 11 Apr 18 00:01:10 -0700

A research team of Shinshu University, Japan, has developed robust reverse osmosis membranes that can endure large-scale water desalination. To meet the demand of potable water at low cost, more robust membranes capable of withstanding harsh conditions, while remaining chemically stable to tolerate cleaning treatments, are necessary. The key lays in carbon nanotechnology. A multi-walled carbon nanotube-polyamide nanocomposite membrane creates a protective effect that stabilized the linked molecules of the polyamide against chlorine.

Tiny nanomachine successfully completes test drive

Mon, 09 Apr 18 00:02:10 -0700

Together with colleagues from the USA, scientists from the University of Bonn and the research institute Caesar in Bonn have used nanostructures to construct a tiny machine that constitutes a rotatory motor and can move in a specific direction. The researchers used circular structures from DNA. The results will now be presented in the journal

How do very small particles behave at very high temperatures?

Thu, 05 Apr 18 00:11:00 -0700

A Swansea University nanomaterials expert has been looking at how small gold particles survive when subjected to very high temperatures.

Luxembourg researchers refute 20-year-old assumptions in solar cell production

Fri, 23 Mar 18 00:02:40 -0700

Research led by the University of Luxembourg investigated the manufacturing process of solar cells. The researchers proved that assumptions on chemical processes that were commonplace among researchers and producers for the past 20 years are, in fact, inaccurate. The physicists published their findings in the renowned scientific journal Nature Communications.

Special Focus Issue of Therapeutic Delivery on the current status and opportunities for nanotechnolo

Thu, 15 Mar 18 00:03:30 -0700

The Future Science Group (FSG) published journal, Therapeutic Delivery, today announced the release of its Special Focus Issue, which offers readers of the journal an insight into some of the recent developments, unanswered questions and future potential of nanotechnology in drug delivery.

How to build a better railway -- in (almost) every cell in your body

Mon, 12 Mar 18 00:06:00 -0700

New work from the University of Warwick shows how a microscopic 'railway' system in our cells can optimise its structure to better suit bodies' needs.

A treasure trove for nanotechnology experts

Tue, 06 Mar 18 00:12:00 -0800

A team from EPFL and NCCR Marvel has identified more than 1,000 materials with a particularly interesting 2-D structure. Their research, which made the cover page of Nature Nanotechnlogy, paves the way for groundbreaking technological applications.

Researchers reshape the energy landscape of phonons in nanocrystals

Tue, 06 Mar 18 00:01:10 -0800

Phonons, which are packets of vibrational waves that propagate in solids, play a key role in condensed matter and are involved in various physical properties of materials. In nanotechnology, for example, they affect light emission and charge transport of nanodevices. As the main source of energy dissipation in solid-state systems, phonons are the ultimate bottleneck that limits the operation of functional nanomaterials.

UT Dallas team's microscopic solution may save researchers big time

Wed, 21 Feb 18 00:00:10 -0800

A University of Texas at Dallas graduate student, his advisor and industry collaborators believe they have addressed a long-standing problem troubling scientists and engineers for more than 35 years: How to prevent the tip of a scanning tunneling microscope from crashing into the surface of a material during imaging or lithography

Understanding brain functions using upconversion nanoparticles

Tue, 13 Feb 18 00:16:20 -0800

Scientists from the National University of Singapore (NUS) have worked with an international research team to jointly develop a novel approach for deep brain stimulation. The new method utilises upconversion nanoparticles developed by Professor Liu Xiaogang from the Department of Chemistry at NUS Faculty of Science to allow delivery of visible light deep into the brain to stimulate neural activities in a less-invasive manner. This innovation marks a significant breakthrough in optogenetics, empowering researchers to uncover valuable insights about the brain.

Ultra-efficient removal of carbon monoxide using gold nanoparticles on a molecular support

Fri, 09 Feb 18 00:16:30 -0800

Researchers from Tokyo Metropolitan University have developed a way to mount gold nanoparticles on a molecular support known as a polyoxometalate (POM). They successfully applied this to realize nearly 100% conversion of carbon monoxide (CO) over a wide temperature range, demonstrating stable performance over long periods of time. They showed how traces of water uniquely contribute to the catalyst's function, promising insight into catalysis and potential application to exhaust gas and room air purification.

Mass production of new class of semiconductors closer to reality

Fri, 09 Feb 18 00:16:20 -0800

Two Waterloo chemists have made it easier for manufacturers to produce a new class of faster and cheaper semiconductors.

Forging a quantum leap in quantum communication

Fri, 09 Feb 18 00:04:10 -0800

The major drawback of quantum communication today is the slow speed of data transfer, which is limited by the speed at which the parties can perform quantum measurements. Researchers at Bar-Ilan University have devised a method that overcomes this

Recreating liver tumors as organoids for faster, more accurate drug screening

Wed, 07 Feb 18 00:15:20 -0800

A major challenge in developing liver cancer drugs is that preclinical testing occurs in tumor models that do not accurately reflect human tumor features, causing drug candidates to later fail in clinical testing. Now, Singaporean researchers have grown organoids from liver tumors on specially engineered 3-D scaffolds. These organoids replicate important features of the original tumor, including genetic changes and intra-tumor heterogeneity, and could serve as tumor avatars for high-throughput drug screening.

A biological approach to precision medicine targets endless number of diseases

Thu, 01 Feb 18 00:16:10 -0800

A new Tel Aviv University study proposes a novel approach to manipulate genes using a self-assembling platform that delivers nucleic acids to distinct subsets of cells. The new modular platform offers a robust biological approach -- and may hold the key to the future of personalized medicine.

New technology standard could shape the future of electronics design

Wed, 24 Jan 18 00:15:20 -0800

Scientists at the University of Southampton have discovered a way of enhancing the capabilities of an emerging nanotechnology that could open the door to a new generation of electronics.

A discovery about the behavior of heat in electronic devices can improve their performance

Tue, 23 Jan 18 00:14:30 -0800

Researchers at the Universitat Autònoma de Barcelona (UAB), in collaboration with Purdue University (USA), have shown that heat flow behaves similarly to a viscous fluid when studied at nanoscale. The discovery, published in Nature Communications, paves the way to a better thermal management in electronic devices.

New long-acting approach for malaria therapy developed

Mon, 22 Jan 18 00:12:30 -0800

A new study, published in Nature Communications, conducted by the University of Liverpool and the Johns Hopkins University School of Medicine highlights a new 'long acting' medicine for the prevention of malaria.

Scientists develop a new material for manipulating molecules

Wed, 17 Jan 18 00:01:20 -0800

A scientist at the University of Córdoba, working with an international research team, has created a new porous single-crystal material which could have numerous applications in nanotechnology and catalysis.

Laser evaporation technology to create new solar materials

Wed, 03 Jan 18 00:15:20 -0800

Researchers use lasers to blast solutions containing delicate organic compounds to grow new types of crystals for solar cells, light-emitting diodes and photodetectors.

Single metalens focuses all colors of the rainbow in one point

Mon, 01 Jan 18 00:02:20 -0800

Metalenses -- flat surfaces that use nanostructures to focus light -- promise to revolutionize optics by replacing the bulky, curved lenses currently used in optical devices with a simple, flat surface. But, these metalenses have remained limited in the spectrum of light they can focus well. Now a team of Harvard researchers has developed the first single lens that can focus the entire visible spectrum of light -- including white light -- in the same spot and in high resolution.

Project will provide reaction kinetics data for synthesis of metallic nanocrystals

Wed, 27 Dec 17 00:08:20 -0800

Researchers have published the first part of what they expect to be a database showing the kinetics involved in producing colloidal metal nanocrystals -- which are suitable for catalytic, biomedical, photonic and electronic applications -- through an autocatalytic mechanism.

Fast flowing heat in layered material heterostructures

Mon, 18 Dec 17 00:09:50 -0800

Graphene Flagship scientists, led by researchers at ICFO -- The Institute of Photonic Sciences in Barcelona, Spain, have detected graphene's out-of-plane heat transfer in van der Waals heterostructures. In their paper published in Nature Nanotechnology they follow this process in real-time. This phenomenon has many implications for optoelectronic devices.

Researchers steer the flow of electrical current with spinning light

Mon, 18 Dec 17 00:10:10 -0800

Light can generate an electrical current in semiconductor materials. This is how solar cells generate electricity from sunlight and how smart phone cameras can take photographs. To collect the generated electrical current, called photocurrent, an electric voltage is needed to force the current to flow in only one direction.

'Knot' your average nanostructure: Single-stranded molecules that fold into big shapes

Thu, 14 Dec 17 00:00:40 -0800

Helping to make creation of nano-sized structures more user-friendly, scientists have designed single-stranded DNA and RNA (ssDNA and ssRNA) that can fold into desired shapes on command, and at an unprecedented scale.

Spaghetti-like, DNA 'noodle origami' the new shape of things to come for nanotechnology

Thu, 14 Dec 17 00:16:20 -0800

A team of Arizona State and Harvard scientists has 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.

Discovery sets new world standard in nano generators

Mon, 11 Dec 17 00:07:00 -0800

A team of University of Alberta engineers has 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 by other research teams. The devices can transform mechanical energy such as wind or vibrations into electricity.

Researchers invent novel RNA nanotech to decorate exosomes for effective cancer therapy

Mon, 11 Dec 17 00:13:50 -0800

A new study shows that attaching antibody-like RNA nanoparticles to microvesicles can deliver effective RNA therapeutics specifically to cancer cells. Researchers used RNA nanotechnology to apply the RNA nanoparticles and control their orientation. The microscopic, therapy-loaded extracellular vesicles successfully targeted three types of cancer in animal models. The findings could lead to a new generation of anticancer drugs that use siRNA, microRNA and other RNA-interference technologies.

Fast flowing heat in graphene heterostructures

Wed, 29 Nov 17 00:02:40 -0800

Scientists from the European Graphene Flagship, led by researchers at ICFO- The Institute of Photonic Sciences, have recently succeeded in observing and following, in real-time, the way in which heat transport occurs in van der Waals stacks, which consist of graphene encapsulated by the dielectric two-dimensional material hexagonal BN (hBN).

Scientists capture colliding organic nanoparticles on video for first time

Fri, 17 Nov 17 00:03:40 -0800

A Northwestern University research team is the first to capture on video organic nanoparticles colliding and fusing together. This unprecedented view of 'chemistry in motion' will aid Northwestern nanoscientists developing new drug delivery methods as well as demonstrate to researchers around the globe how an emerging imaging technique opens a new window on a very tiny world.

New imaging technique peers inside living cells

Thu, 16 Nov 17 00:12:40 -0800

Called Ultrasound Bioprobe, the non-invasive approach developed at Northwestern University allows researchers to view sub-cellular structures and their mechanical behavior at nanoscale resolution.

Counterfeits and product piracy can be prevented by security features, such as printed 3-D microstructures

Wed, 15 Nov 17 00:02:10 -0800

Security features are to protect bank notes, documents, and branded products against counterfeiting. Losses caused by product forgery and counterfeiting may be enormous. According to the German Engineering Association, the damage caused in 2016 in its branch alone amounted to EUR 7.3 billion. In the Advanced Materials Technologies journal, researchers of Karlsruhe Institute of Technology (KIT) and the ZEISS company now propose to use printed 3-D microstructures instead of 2-D structures, such as holograms, to improve counterfeit protection.

Learning from photosynthesis

Mon, 13 Nov 17 00:13:30 -0800

Hao Yan and Neal Woodbury from ASU's Biodesign Institute and colleagues from Harvard and MIT, explore new methods to capitalize on Nature's light-harvesting secrets. Their new study outlines the design of a synthetic system for energy gathering, conversion and transport that may point the way to innovations in solar energy, materials science, nanotechnology and photonics.

Scientists of SibFU have found a way to determine the toxicity of nanomaterials

Thu, 02 Nov 17 00:13:00 -0700

Official website of the Russian Science Foundation reports that a group of scientists from Siberian Federal University and Krasnoyarsk Scientific Center of the SB RAS has developed a bioluminescent enzymatic test system for assessing the toxicity of carbon nanomaterials.

Potential cancer treatment breakthrough with nanoporous acupuncture needles

Sun, 29 Oct 17 00:05:50 -0700

Korean researchers newly identified the possibility of cancer treatment, including colorectal cancer, using acupuncture needles that employ nanotechnology for the first time in the world.

New patent will allow for the relief of chronic neuropathic pain

Fri, 27 Oct 17 00:01:30 -0700

The company GB Sciences Inc. has obtained the exclusive global worldwide intellectual property license for this innovative solution, which is based on nanotechnology.

New research explores the limits of nanomaterials and atomic effects for nanotechnology

Wed, 25 Oct 17 00:16:30 -0700

New research shows that manufacturable nanodevices should be the goal of nanotechnological research to ensure the enhanced properties of nanomaterials can be used to fulfill the promise that fundamental science has exposed.

Single nanoparticle mapping paves the way for better nanotechnology

Tue, 24 Oct 17 00:08:20 -0700

Researchers at Chalmers University of Technology and the Technical University of Denmark have developed a method that makes it possible to map the individual responses of nanoparticles in different situations and contexts. The results pave the way for better nanomaterials and safer nanotechnology and were recently published in the journal Nature Communications.

Organic material matters

Tue, 24 Oct 17 00:06:30 -0700

Researchers test the capability of a novel nanoparticle to remove cadmium toxicity from a freshwater system

Taming 'wild' electrons in graphene

Mon, 23 Oct 17 00:01:00 -0700

Graphene -- a one-atom-thick layer of the stuff in pencils -- is a better conductor than copper and is very promising for electronic devices, but with one catch: Electrons that move through it can't be stopped. Until now, that is. Scientists at Rutgers University-New Brunswick have learned how to tame the unruly electrons in graphene, paving the way for the ultra-fast transport of electrons with low loss of energy in novel systems. Their study was published online in Nature Nanotechnology.

Novel 'converter' heralds breakthrough in ultra-fast data processing at nanoscale

Fri, 20 Oct 17 00:09:00 -0700

A research team from the National University of Singapore has recently invented a novel 'converter' that can harness the speed and small size of plasmons for high frequency data processing and transmission in nanoelectronics.

Chemical treatment improves quantum dot lasers

Mon, 16 Oct 17 00:08:00 -0700

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 at Los Alamos National Laboratory's Nanotech Team, 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.

Laser cavities take on new shapes and functionalities

Thu, 12 Oct 17 00:16:00 -0700

Researchers have demonstrated the first laser cavity that can confine and propagate light in any shape imaginable, even pathways with sharp bends and angles. The new cavity, called a topological cavity, could enable laser components to be packed more densely on a chip, leading to higher speed optical communication technologies that can be fabricated in an efficient and scalable manner using photonic integration techniques.

What can be discovered at the junction of physics and chemistry?

Fri, 06 Oct 17 00:04:30 -0700

TSU scientist Rashid Valiev and colleagues from the universities of Helsinki and Oslo have discovered a new type of rare molecules whose properties can be controlled by changing the induction of an external magnetic field. These are paramagnetic molecules from the class porphyrins. Porphyrins are part of hemoglobin and chlorophyll and are closely related to the processes of photosynthesis and respiration in living organisms.

Nanopatch polio vaccine delivers

Thu, 05 Oct 17 00:00:30 -0700

Efforts to rid the world of polio have taken another significant step, thanks to research led by University of Queensland bioscience experts and funding from the World Health Organisation (WHO). A fresh study of the Nanopatch -- a microscopic vaccine delivery platform first developed by UQ researchers -- has shown the device more effectively combats poliovirus than needles and syringes.

Magnetic cellular 'Legos' for the regenerative medicine of the future

Tue, 12 Sep 17 00:01:10 -0700

By incorporating magnetic nanoparticles in cells and developing a system using miniaturized magnets, researchers have succeeded in creating cellular magnetic 'Legos.' They were able to aggregate cells using only magnets and without an external supporting matrix, with the cells then forming a tissue that can be deformed at will.

Northeastern biophysics study makes exciting advancements for the future of DNA sequencing

Mon, 11 Sep 17 00:14:50 -0700

A Northeastern research team has developed new technology that optimizes DNA sequencing using nanophysics and electric currents. In a paper published in Nature Nanotechnology, Northeastern Professor of Biological Physics Meni Wanunu, in partnership with Pacific Biosciences, a biotechnology company with a focus on DNA sequencing, developed a method for loading DNA into sequencing wells with orders of magnitude higher efficiencies.