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Workshop on environmental nanoparticles at UD, Nov. 10-11
The University of Delaware will host (2008-11-10)

Behavior modification could ease concerns about nanoparticles
In an advance that could help ease health and environmental concerns about the emerging nanotechnology industry, scientists are reporting development of technology for changing the behavior of nanoparticles in municipal sewage treatment plants -- their main gateway into the environment. Their study was published in ACS' journal Environmental Science & Technology. (2009-12-16)

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)

Pitt and CMU receive $550,000 from NSF to design metal nanoparticles
The University of Pittsburgh Swanson School of Engineering and Carnegie Mellon University College of Engineering were awarded grants from the National Science Foundation to develop a novel computational framework that can custom design nanoparticles. (2016-07-28)

Silver cycle: New evidence for natural synthesis of silver nanoparticles
Because they have a variety of useful properties, especially as antibacterial and antifungal agents, silver nanoparticles increasingly are being used in a wide variety of industrial and consumer products. This in turn has raised concerns about what happens to them once released into the environment. Now a new research paper adds an additional wrinkle: Nature may be making silver nanoparticles on its own. (2011-05-11)

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

TU Delft: cheap and efficient solar cell made possible by linked nanoparticles
Researchers of the Chemical Engineering department and the Kavli institute of Delft University of Technology in the Netherlands have demonstrated that electrons can move freely in layers of linked semiconductor nanoparticles under the influence of light. This new knowledge will be very useful for the development of cheap and efficient quantum dot solar cells. The researchers publish their findings on Sept. 25 on the website of the scientific journal Nature Nanotechnology. (2011-09-26)

X-ray microscopy at BESSY II: Nanoparticles can change cells
Nanoparticles easily enter into cells. New insights about how they are distributed and what they do there are shown for the first time by high-resolution 3D microscopy images from BESSY II. For example, certain nanoparticles accumulate preferentially in certain organelles of the cell. This can increase the energy costs in the cell. 'The cell looks like it has just run a marathon, apparently, the cell requires energy to absorb such nanoparticles' says lead author James McNally. (2020-02-12)

Targeted nanoparticles incorporating siRNA offer promise for cancer treatment
The use of targeted nanoparticles offers promising techniques for cancer treatment. Researchers in the laboratory of Mark E. Davis at the California Institute of Technology have been using small interfering RNA (siRNA), sometimes known as silencing RNA, to (2007-05-20)

Are silver nanoparticles harmful?
Silver nanoparticles cause more damage to testicular cells than titanium dioxide nanoparticles, according to a recent study by the Norwegian Institute of Public Health. However, the use of both types may affect testicular cells with possible consequences for fertility. (2012-03-14)

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 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)

NRL researchers develop novel method to synthesize nanoparticles
Oxide nanoparticles have been shown to be crucial components in numerous applications to include electronic and magnetic devices, energy storage and generation, and as magnetic nanoparticles for use in magnetic resonance imaging. An important advantage of this novel method is the capability of creating bulk quantities of materials in a single step. (2014-09-24)

Nanoparticles in our environment may have more harmful effects than we think
Researchers warn that a combination of nanoparticles and contaminants may form a cocktail that is harmful to our cells. In their study, 72 pct. of cells died after exposure to a cocktail of nano-silver and cadmium ions. (2018-08-20)

Study finds more efficient means of creating, arranging carbon nanofibers
Carbon nanofibers hold promise for technologies ranging from medical imaging devices to precise scientific measurement tools, but the time and expense associated with uniformly creating nanofibers of the correct size has been an obstacle -- until now. A new study from North Carolina State University demonstrates an improved method for creating carbon nanofibers of specific sizes, as well as explaining the science behind the method. (2011-03-17)

Scientists find nanoparticles with peculiar chemical composition
An international team from Russia and China discovered a host of new and unexpected nanoparticles and found a way to control their composition and properties the findings that break fresh ground in the use of nanoparticles. (2018-12-20)

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)

Study models new method to accelerate nanoparticles
In a new study, researchers at the University of Illinois and the Missouri University of Science and Technology modeled a method to manipulate nanoparticles as an alternative mode of propulsion for tiny spacecraft that require very small levels of thrust. The team simulated a system that uses light to generate an electromagnetic field to move the particles from a reservoir, funneled through an injector, then shot out of an accelerator to produce thrust. (2019-08-23)

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)

Cutting nanoparticles down to size -- new study
A new technique in chemistry could pave the way for producing uniform nanoparticles for use in drug delivery systems. (2019-11-27)

Better contrast agents based on nanoparticles
Scientists at the University of Basel have developed nanoparticles which can serve as efficient contrast agents for magnetic resonance imaging. This new type of nanoparticles produce around ten times more contrast than the actual contrast agents and are responsive to specific environments. The journal Chemical Communications has published these results. (2016-08-03)

New 'ukidama' nanoparticle structure revealed
A unique structure of copper-silver nanoparticles has been identified that resemble the Japanese glass fishing floats called ukidama. (2016-06-12)

Effect of the Van-der-Waals and intramolecular forces
The tertiary system of nucleotide chain -- gold nanoparticles--- carbon nanotube represents a great interest in the modern research and application of the bio-nano-technologies. (2016-05-06)

Liquid or solid? Charged nanoparticles in lipid membrane decide
Patchiness in phospholipid membranes is fundamental to their use as biomolecules and biosensors. Using charged nanoparticles, researchers at the University of Illinois have found a new way to stimulate patchiness in phospholipid membranes. (2008-11-10)

New immune system understanding may lead to safer nanomedicines
Eliminating immunoglobulins from blood reduced ability of C3 to find and mark nanoparticles by 70-95 percent. (2019-01-14)

Study finds public relatively unconcerned about nanotechnology risks
A new study finds that the general public thinks getting a suntan poses a greater public health risk than nanotechnology or other nanoparticle applications. The study, from North Carolina State University, compared survey respondents' perceived risk of nanoparticles with 23 other public-health risks. (2011-04-12)

Modeling a model nanoparticle
New research from the University of Pittsburgh Swanson School of Engineering introduces the first universal adsorption model that accounts for detailed nanoparticle structural characteristics, metal composition and different adsorbates, making it possible to not only predict adsorption behavior on any metal nanoparticles but screen their stability, as well. (2019-09-18)

Tiny particles, big impact?
Researchers at Binghamton University believe understanding nanoparticles' ability to influence our metabolic processing may be integral to mediating metabolic disorders and obesity, both of which are on the rise and have been linked to processed foods. (2015-06-08)

UT researchers: English ivy may give sunblock a makeover
Researchers at the University of Tennessee, Knoxville, have found that nanoparticles in ivy may protect skin from UV radiation at least four times better than the metal-based sunblocks found on store shelves today. (2010-07-19)

Using mathematics to improve human health
Scientists at the Universities of York and Torino have used mathematics as a tool to provide precise details of the structure of protein nanoparticles, potentially making them more useful in vaccine design. (2016-02-02)

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)

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)

Pouring fire on fuels at the nanoscale
Nanoparticles with armor improve energy harvests from fuel cells. (2015-08-07)

New method for recovering pricey nanoparticles
Scientists are reporting first use of a new method that may make it easier for manufacturers to recover, recycle and reuse nanoparticles, some of which ounce for ounce can be more precious than gold. The method, which offers a solution to a nagging problem, could speed application of nanotechnology in new generations of solar cells, flexible electronic displays, and other products, the scientists suggest. (2010-04-14)

Carbon black nanoparticles can cause cell death
Researchers from the University of Iowa Carver College of Medicine have found that inhaled carbon black nanoparticles create a double source of inflammation in the lungs. (2011-05-18)

Finding the right balance for catalysts in the hydrogen evolution reaction
A collaboration led by the University of Tsukuba optimized the balance between the catalytic activity in hydrogen generation and stability of metal nanoparticles coated with different numbers of graphene layers. The team found that coating the catalyst nanoparticles with three to five graphene layers provided samples that displayed high catalytic activity in hydrogen evolution as well as high stability in acidic solution. These findings should aid the development of economical processes for large-scale hydrogen production. (2018-06-27)

Action of nanoparticles on platelet activation and plasmatic coagulation
This article illustrates the mechanism and regulation of hemostasis, provides information on nanoparticle action on hemostasis and describes concept and limitations of assays in the assessment of nanoparticles. (2016-05-12)

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)

Sediment dwelling creatures at risk from nanoparticles in common household products
The review, published today in the journal Environmental Chemistry, highlights the risks posed to aquatic organisms when nanoparticles 'transform' on contact with water and as they pass from water to sediment and then into sediment dwelling organisms. (2015-08-13)

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