Popular Gold Nanoparticles News and Current Events

Popular Gold Nanoparticles News and Current Events, Gold Nanoparticles News Articles.
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Viral RNA sensing
Even tiny amounts of viruses can have disastrous consequences. RNA identification can reveal the type of virus present. A fast and sensitive technique based on optical detection has now been outlined in the journal Angewandte Chemie. Scientists from Germany and Finland have demonstrated the binding of an RNA target to a probe made of gold nanorods and a DNA origami structure. Chirality switches triggered by binding can be measured by circular dichroism spectroscopy. (2018-09-19)

Gold recycling
'Urban mining', the recycling of precious metals from electronic gadgets, becomes ever more important, although processes that are both efficient and environmentally benign are still scarce. An international team of scientists has now looked deeper into gold dissolution, in particular, how organic thiol-containing compounds help dissolve elemental gold. Their study published in the journal Angewandte Chemie proposes selective, fast, and convenient thiol-assisted gold leaching processes. (2018-12-13)

Converting CO2 into usable energy
Scientists show that single nickel atoms are an efficient, cost-effective catalyst for converting carbon dioxide into useful chemicals. (2018-03-01)

Acoustic nanomotors
In cancer research, the 'Cas-9-sgRNA' complex is an effective genomic editing tool, but its delivery across the cell membrane to the target (tumor) genome has not yet been satisfactorily solved. American and Danish scientists have now developed an active nanomotor for the efficient transport, delivery, and release of this gene scissoring system. As detailed in their paper in the journal Angewandte Chemie, their nanovehicle is propelled towards its target by ultrasound. (2018-02-09)

World's fastest hydrogen sensor could pave the way for clean hydrogen energy
Hydrogen is a clean and renewable energy carrier that can power vehicles, with water as the only emission. Unfortunately, hydrogen gas is highly flammable when mixed with air, so very efficient and effective sensors are needed. Now, researchers from Chalmers University of Technology, Sweden, present the first hydrogen sensors ever to meet the future performance targets for use in hydrogen powered vehicles. (2019-04-11)

Better genome editing
Reich Group researchers develop a more efficient and precise method of in-cell genome editing. (2018-08-21)

Enhanced glow
Tumor cells circulating in blood are markers for the early detection and prognosis of cancer. However, detection of these cells is challenging because of their scarcity. In the journal Angewandte Chemie, scientists have now introduced an ultrasensitive method for the direct detection of circulating tumor cells in blood samples. It is based on the amplified, time-resolved fluorescence measurement of luminescent lanthanide ions released from nanoparticles that bind specifically to tumor cells. (2019-08-07)

Huntington's disease provides new cancer weapon
Patients with Huntington's disease, a fatal genetic illness that causes the breakdown of nerve cells in the brain, have up to 80 percent less cancer than the general population. Scientists have discovered why Huntington's is so toxic to cancer cells and harnessed it for a novel approach to treat cancer, a new study reports. (2018-02-12)

'Workhorse' lithium battery could be more powerful thanks to new design
Cornell University chemical engineering professor Lynden Archer believes there needs to be a battery technology 'revolution' -- and thinks that his lab has fired one of the first shots. (2018-06-25)

Light touch keeps a grip on delicate nanoparticles
Using a refined technique for trapping and manipulating nanoparticles, NIST researchers have extended the trapped particles' useful life more than tenfold. This new approach, which one researcher likens to (2012-05-03)

New technique produces tunable, nanoporous materials
A collaborative group of researchers describe a new technique for creating novel nanoporous materials with unique properties that can be used to filter molecules or light. (2017-10-26)

Multiresponsive nanosurfactant constructs tiny chemical factory
IBS scientists have made a surfactant based on nanoparticle dimers, which is responsive to multiple stimuli. The nanosurfactant combines several characteristics of each 'active' molecular surfactant which allows a tremendous flexibility whereby liquid droplets can be manipulated. (2018-01-10)

Measurements from 3-D augmented reality holographic models shown to be highly accurate
Measurements taken on projected augmented reality 3-D holographic models were shown to be essentially as accurate as 'gold standard' measurements and nearly approaching that of PACS measurements, according to a study to be presented at the ARRS 2018 Annual Meeting, set for April 22-27 in Washington, D.C. (2018-02-09)

Breakthrough with a chain of gold atoms
The precise control of electron transport in microelectronics makes complex logic circuits possible that are in daily use in smartphones and laptops. (2017-02-17)

NUS scientists develop novel chip for fast and accurate disease detection at low cost
A novel invention by a team of researchers from the National University of Singapore holds promise for a faster and cheaper way to diagnose diseases with high accuracy. Professor Zhang Yong from the Department of Biomedical Engineering at the NUS Faculty of Engineering and his team have developed a tiny microfluidic chip that could effectively detect minute amounts of biomolecules without the need for complex lab equipment. (2018-03-29)

Nanoparticles deliver anticancer cluster bombs
Scientists have devised a triple-stage 'cluster bomb' system for delivering the chemotherapy drug cisplatin, via tiny nanoparticles designed to break up when they reach a tumor. (2016-03-29)

Polymer-coated silicon nanosheets -- an alternative to graphene
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors. (2017-03-08)

Glioblastoma nanomedicine crosses into brain in mice, eradicates recurring brain cancer
A new synthetic protein nanoparticle capable of slipping past the nearly impermeable blood-brain barrier in mice could deliver cancer-killing drugs directly to malignant brain tumors, new research from the University of Michigan shows. (2020-11-10)

Nanoparticles remain unpredictable
The way that nanoparticles behave in the environment is extremely complex. There is currently a lack of systematic experimental data to help understand them comprehensively, as ETH environmental scientists have shown in a large overview study. A more standardized approach would help to advance the research field. (2017-04-19)

Bitcoin crash could derail other cryptocurrencies
A sharp fall in the value of Bitcoin may cause other cryptocurrencies to crash, but is unlikely to have a significant impact on traditional assets, according to new research published in the journal Economics Letters. (2018-02-08)

Highly efficient photocatalyst capable of carbon dioxide recycling
A research team from Korea has developed titanium dioxide-based photocatalyst with the highest efficiency in the world that converts carbon dioxide into methane. The result is expected to be applied to technologies to reduce and reuse carbon dioxide. (2017-12-01)

'Hot' electrons don't mind the gap
Rice University scientists discover that 'hot' electrons can create a photovoltage about a thousand times larger than ordinary temperature differences in nanoscale gaps in gold wires. This finding opens a path for plasmonic tunneling-based photodetectors for sensors, solar cells and electronics. (2017-05-08)

A mechanical way to stimulate neurons
Magnetic nanodiscs can be activated by an external magnetic field, providing a research tool for studying neural responses. (2020-07-20)

Scientists win a gold metal for liquid behavior
Researchers at University of Tokyo's Institute of Industrial Science report the first direct observation of atoms moving in liquid by collaborating with National Institute of Materials Science. Using scanning transmission electron microscopy, they find that gold ions diffuse through ionic liquid by a phenomenon they describe as a 'cage-jump.' Image analysis determined the diffusion coefficient and activation energy of the diffusion. Quantification of liquid at the atomic level is expected to contribute to the design of energy efficient devices. (2017-12-15)

Researchers develop breakthrough technique to combat cancer drug resistance
The ability for cancer cells to develop resistance to chemotherapy drugs -- known as multi-drug resistance -- remains a leading cause for tumor recurrence and cancer metastasis, but recent findings offer hope that oncologists could one day direct cancer cells to 'turn off' their resistance capabilities. (2018-02-08)

Obtaining of silicon nanowires becomes eco-friendly
Scientists from the Faculty of Physics, the Lomonosov Moscow State University have devised a technique of silicon nanowires synthesis. They have managed to do this with the help of metal-assisted etching, where safer and more eco-friendly ammonium fluoride is used instead of hydrofluoric acid. The research results have been published in Nanoscale Research Letters journal. (2016-10-18)

Deep-brain exploration with nanomaterial
Studying deep brain tissues noninvasively is difficult. Now RIKEN scientists in Japan have developed a way to send light deep into the brain without invasive optical fibers. The method uses infrared light outside the head to activate upconversion nanoparticles (UCNPs). When these nanoparticles absorb near-infrared laser light, they emit visible photons to deep areas in the brain, allowing remote optogenetic stimulation or inhibition of neurons in the brain. (2018-02-08)

The day LISA Pathfinder hung in the balance
At the core of ESA's LISA Pathfinder mission sit two small hearts. Each is a cube, just five centimetres across. Together they will allow LISA Pathfinder to lay the foundations for future space-based measurements that investigate the very core of Einstein's General Relativity. (2006-10-11)

Lipid nanoparticles for gene therapy
Twenty-five years have passed since the publication of the first work on solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs) as a system for delivering drugs. So the European Journal of Pharmaceutics and Biopharmaceutics has prepared a special edition for which it asked the PharmaNanoGene group of the UPV/EHU-University of the Basque Country to produce a piece of work. (2017-02-14)

Better cathode materials for lithium-sulphur-batteries
A team at the Helmholtz-Zentrum Berlin (HZB) has for the first time fabricated a nanomaterial made from nanoparticles of a titanium oxide compound (Ti4O7) that is characterized by an extremely large surface area, and tested it as a cathode material in lithium-sulphur batteries. The highly porous nanomaterial possesses high storage capacity that remains nearly constant over many charging cycles. (2017-05-17)

Too much technology may be killing beneficial bacteria
For years, scientists have known about silver's ability to kill harmful bacteria. Now, a University of Missouri researcher has found that silver nanoparticles also may destroy benign bacteria that are used to remove ammonia from wastewater treatment systems. The study was funded by a grant from the National Science Foundation. (2008-04-29)

Bright future for solar cell technology
New all-inorganic perovskite solar cells tackle three key challenges in solar cell technology: efficiency, stability, and cost. (2018-04-27)

A versatile method to pattern functionalized nanowires
A team of researchers from Hokkaido University has developed a versatile method to pattern the structure of 'nanowires,' providing a new tool for the development of novel nanodevices. (2016-09-09)

3-D nanoscale imaging made possible
In a research article '3D Nano-scale Imaging by Plasmonic Brownian Microscopy' published today in Nanophotonics, the team around Prof. Xiang Zhang from the University of California in Berkeley demonstrate a method for meeting this challenge with stunning properties. (2017-12-15)

Nanoparticles can grow in cubic shape
Use of nanoparticles in many applications, e.g. for catalysis, relies on the surface area of the particles. Now scientists show how originally spherical nucleus can transform into cube with high surface-to-volume ratio. These nanocubes are available to be used in practice, and may interest many designers of new materials. The research has recently been reported in ACS Nano. (2016-04-04)

NASA GOLD Mission to image Earth's interface to space
On Jan. 25, 2018, NASA launches Global-scale Observations of the Limb and Disk, or GOLD, a hosted instrument aboard SES-14 that will inspect the dynamic intermingling of space and Earth's uppermost atmosphere. (2018-01-24)

A new Bose-Einstein condensate created at Aalto University
Researchers at Aalto University, Finland are the first to create a Bose-Einstein condensate of light coupled with metal electrons, so-called surface plasmon polaritons. (2018-04-16)

Radiation therapy, macrophages improve efficacy of nanoparticle-delivered cancer therapy
Massachusetts General Hospital investigators report finding finding how appropriately timed radiation therapy can significantly improve the delivery of cancer nanomedicines by attracting macrophages to tumor blood vessels, which results in a transient 'burst' of nanoencapsulated drugs from capillaries into the tumor. (2017-05-31)

Water, water -- the two types of liquid water
There are two types of liquid water, according to research carried out by an international scientific collaboration. This new peculiarity adds to the growing list of strange phenomena in what we imagine is a simple substance. The discovery could have implications for making and using nanoparticles as well as in understanding how proteins fold into their working shape in the body or misfold to cause diseases such as Alzheimer's or CJD. (2016-11-10)

Are nanobots on their way?
The first real steps towards building a microscopic device that can construct nano machines have been taken by US researchers. Writing in the peer-reviewed publication, International Journal of Nanomanufacturing from Inderscience Publishers, researchers describe an early prototype for a nanoassembler. (2008-04-28)

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