Gold Nanoparticles Current Events

Gold Nanoparticles Current Events, Gold Nanoparticles News Articles.
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Plants open their pores and scientists strike gold
Plants containing the element gold are already widely known. The flowering perennial plant alfafa, for example, has been cultivated by scientists to contain pure gold in its plant tissue. Now researchers from the Sun Yat-sen University in China have identified and investigated the characteristics of gold nanoparticles in two plant species growing in their natural environments. (2018-06-14)

CSIRO scientist discovers natural 'invisible' gold
Nanoparticles of gold too small to be seen with the naked eye have been created in laboratories, but up until now, have never been seen in nature. (2008-06-22)

Gold nanoparticles enrich everyday products
A new technique for dispersing nanoparticles through polymers opens a world of new properties for diverse products. (2010-05-04)

Gold and silver nano baubles
They might just be the smallest Christmas tree decorations ever. Tiny spherical particles of gold and silver that are more than 100 million times smaller than the gold and silver baubles used to decorate seasonal fir trees have been synthesized by researchers in Mexico and the US. (2010-12-03)

What happens to gold nanoparticles in cells?
Gold nanoparticles, which are supposed to be stable in biological environments, can be degraded inside cells. This research conducted by teams from the CNRS, l'Université de Paris, Sorbonne Université, and l'Université de Strasbourg will be published in PNAS, and reveals the ability of cells to metabolize gold, which is nevertheless not essential for their functioning. This study opens the way for a better understanding of the life cycle of gold nanoparticles in organisms. (2019-12-16)

Gold nanoparticles more stable by putting rings on them
Hokkaido University scientists have found a way to prevent gold nanoparticles from clumping, which could help towards their use as an anti-cancer therapy. (2021-01-21)

Using gold nanoparticles to hit cancer where it hurts
Scientists at the Georgia Institute of Technology have shown that by directing gold nanoparticles into the nuclei of cancer cells, they can not only prevent them from multiplying, but can kill them where they lurk. (2010-02-15)

Golden sandwich could make the world more sustainable
Scientists have developed a photoelectrode that can harvest 85 percent of visible light in a 30 nanometers-thin semiconductor layer between gold layers, converting light energy 11 times more efficiently than previous methods. (2018-09-09)

Study improves understanding of surface molecules in controlling size of gold nanoparticles
North Carolina State University researchers have shown that the (2012-06-18)

Study improves understanding of method for creating multi-metal nanoparticles
A new study from researchers at North Carolina State University sheds light on how a technique that is commonly used for making single-metal nanoparticles can be extended to create nanoparticles consisting of two metals -- and that have tunable properties. The study also provides insight into the optical properties of some of these nanoparticles. (2010-12-15)

Nanomedicine: Drugs can be made 'smarter'
A new method has been developed to make drugs 'smarter' using nanotechnology so pharmacologists can tailor their drugs to more accurately target an area on the body, such as a cancer tumour. (2018-04-23)

Researchers find simpler way to deposit magnetic iron oxide onto gold nanorods
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. (2017-12-11)

Air-purifying church windows early nanotechnology
Stained glass windows that are painted with gold purify the air when they are lit up by sunlight, a team of Queensland University of Technology experts have discovered. (2008-08-21)

A potential breakthrough in obesity medicine with the help of gold nanoparticles
A team of researchers in Korea believes to have discovered a synthetic gold-based compound which may help patients with obesity. The nanoparticles were tested in both 3T3-L1 and HepG2 cell lines, which are two known candidates for studying obesity and related disease models. (2020-04-14)

Gold nanoparticles bring scientists closer to a treatment for cancer
Scientists at the University of Southampton have developed smart nanomaterials, which can disrupt the blood supply to cancerous tumors. (2011-07-07)

Nanoparticles could allow for faster, better medicine
Gold nanoparticles could help make drugs act more quickly and effectively, according to new research conducted at Binghamton University, State University of New York. (2017-11-20)

Gold standards for nanoparticles
KAUST researchers reveal how small organic 'citrate' ions can stabilize gold nanoparticles, assisting research on the structures' potential. (2017-03-28)

Speedy and precise multicolor imaging of biomolecules now possible
For the first time, researchers can track biological molecules with unprecedented speed and precision thanks to the use of multi-metallic nanoparticles. The researchers published their results on October 17 in ACS Photonics, a journal of the American Chemical Society. (2019-12-09)

Researchers find gold nanoparticles capable of 'unzipping' DNA
New research from North Carolina State University finds that gold nanoparticles with a slight positive charge work collectively to unravel DNA's double helix. This finding has ramifications for gene therapy research and the emerging field of DNA-based electronics. (2012-06-20)

Dark field imaging of rattle-type silica nanorattles coated gold nanoparticles in vitro and in vivo
Gold nanoparticle is a promising material due to its outstanding optical properties; however, potential toxicity limited its applications. In a 2013 issue of Chinese Science Bulletin, a paper indicated that rattle-type silica nanoparticles can improve of the biocompatibility of GN and remain its dark field imaging function. (2013-04-26)

Researchers identify the physical mechanism that can kill bacteria with gold nanoparticles
A multidisciplinary team of researchers have discovered that the mechanical deformation of bacteria is a toxic mechanism that can kill bacteria with gold nanoparticles. The results of this research are a breakthrough in researchers' understanding the antibacterial effects of nanoparticles and their efforts to find new materials with bactericide properties. (2020-12-10)

Dipanjan Pan demonstrates new method to produce gold nanoparticles in cancer cells
Researchers published a seminal study in Nature Communications that demonstrates for the first time a method of biosynthesizing plasmonic gold nanoparticles within cancer cells, without the need for conventional bench-top lab methods. It has the potential to notably expand biomedical applications. (2020-09-11)

Inverting a standard experiment sometimes produces different results
The standard experimental setup for measuring the cellular uptake of nanoparticles is to place cells in a well on a culture plate and cover them with culture medium containing nanoparticles. The assumption underlying these experiments is that the particles remain well-dispersed. But when a Washington University scientist turned cell cultures upside down, he discovered that this assumption doesn't always hold. Some experiments preparing for the clinical use of nanoparticles may therefore need to be redone. (2011-04-28)

NIST 'catch and release' program could improve nanoparticle safety assessment
NIST scientists have found a way to trap and release nanoparticles at will, a research technique useful for studying how the particles behave in biological systems. (2011-06-08)

Cinnamon can replace harmful chemicals used to create nanoparticles
A study by a University of Missouri research team has found a method that could replace nearly all of the toxic chemicals required to make gold nanoparticles. The missing ingredient can be found in nearly every kitchen's spice cabinet -- cinnamon. (2010-11-29)

First synthesis of gold nanoparticles inside human hair for dyeing and much more
In a discovery with applications ranging from hair dyeing to electronic sensors to development of materials with improved properties, scientists are reporting the first synthesis of gold nanoparticles inside human hairs. Their study appears in ACS' journal Nano Letters. (2012-12-05)

Using gold nanoparticles to trigger sequential unfolding of 3D structures
Researchers have developed a technique that takes advantage of gold nanoparticles to trigger the sequential unfolding of three-dimensional structures using different wavelengths of light. (2018-06-18)

Research reveals liquid gold on the nanoscale
Swansea University researchers have discovered what liquid gold looks like on the nanoscale - and in doing so have mapped the way in which nanoparticles melt, which is relevant to the manufacturing and performance of nanotech devices such as bio-sensors, nanochips , gas sensors, and catalysts. (2019-06-13)

Gold nanoparticles may simplify cancer detection
Binding gold nanoparticles to a specific antibody for cancer cells could make cancer detection much easier. (2005-05-09)

Nanoparticles with pulse laser controlled antibacterial properties
Silver nanoparticles have excellent antibacterial properties and are considered by many to be a strong contender in the critical search for an answer to antibiotic-resistant bacteria. Researchers from Kumamoto University, Japan have discovered how to activate their bactericidal effect at will using pulsed laser irradiation. This is promising development in the fight against antibacterial resistance. (2017-10-26)

Using solar energy to turn raw materials into ingredients for every day life
QUT scientist Dr. Sarina Sarina, who achieved outstanding progress in driving this energy intensive chemical production process at ambient temperature using light instead of fossil fuels, has won the prestigious Alexander von Humboldt fellowship at the famous Max Planck Institute in Berlin. (2014-09-17)

Research examines how to optimize nanoparticles for efficient drug delivery
Nanoparticles are being studied as drug delivery systems to treat a wide variety of diseases. New research delves into the physical properties of nanoparticles that are important for successfully delivering therapeutics within the body, with a primary focus on size. This is especially important as relatively subtle differences in size can affect cell uptake and determine the fate of nanoparticles once within cells. (2016-07-18)

3D printing with applications in the pharmaceutical industry
This achievement will have applications in the pharmaceutical industry, such as in the preparation of biocompatible biosensors based in gold, which have already been shown to be effective in the detection of carcinogenic cells and tumour biomarkers. (2020-01-17)

Applying precious metal catalysts economically
Researchers have developed a new method of using rare and expensive catalysts as sparingly as possible. They enclosed a precious metal salt in outer shells, tiny micelles, and had them strike against a carbon electrode, thus coating the surface with nanoparticles of the precious metal contained in the micelles. At the same time, the team was able to precisely analyse how much of the metal was deposited. (2019-05-15)

Researchers develop ultra-simple method for creating nanoscale gold coatings
Researchers at Rensselaer Polytechnic Institute have developed a new, ultra-simple method for making layers of gold that measure only billionths of a meter thick. The process, which requires no sophisticated equipment and works on nearly any surface including silicon wafers, could have important implications for nanoelectronics and semiconductor manufacturing. (2010-06-16)

Like little golden assassins, 'smart' nanoparticles identify, target and kill cancer cells
Another weapon in the arsenal against cancer: nanoparticles that identify, target and kill specific cancer cells while leaving healthy cells alone. (2010-03-08)

How gold nanoparticles could improve solar energy storage
Star-shaped gold nanoparticles, coated with a semiconductor, can produce hydrogen from water over four times more efficiently than other methods - opening the door to improved storage of solar energy and other advances that could boost renewable energy use and combat climate change, according to Rutgers University-New Brunswick researchers. (2018-07-12)

Oh, my stars and hexagons! DNA code shapes gold nanoparticles
DNA holds the genetic code for all sorts of biological molecules and traits. But University of Illinois researchers have found that DNA's code can similarly shape metallic structures. The team found that DNA segments can direct the shape of gold nanoparticles -- tiny gold crystals that have many applications in medicine, electronics and catalysis. Each of the four DNA bases codes for a different gold particle shape: rough round particles, stars, flat round discs, and hexagons. (2012-08-08)

Same properties, lower cost
Japanese scientists have developed a technique to transform a copper-based substance into a material that mimics properties of precious and pricey metals, such as gold and silver. (2019-04-01)

Circuit points to future of nanoscale electronics
Using clusters of gold atoms and a microscopic lever, University of Toronto chemists have created a tiny circuit critical to the future of electronic engineering. (2002-12-11)

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