Current Nanoparticle News and Events

Current Nanoparticle News and Events, Nanoparticle News Articles.
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Study reveals platinum's role in clean fuel conversion
Scientists at the US Department of Energy's Brookhaven National Laboratory, Stony Brook University (SBU), and other collaborating institutions have uncovered dynamic, atomic-level details of how an important platinum-based catalyst works in the water gas shift reaction. The experiments provide definitive evidence that only certain platinum atoms play an important role in the chemical conversion, and could therefore guide the design of catalysts that use less of this precious metal. (2021-02-10)

Nickel phosphide nanoparticle catalyst is the full package
Osaka University researchers prepared a nickel phosphide nanoparticle catalyst on a hydrotalcite support (nano-Ni2P/HT) that showed high activity and selectivity in the hydrogenation of D-glucose to D-sorbitol. The catalyst was air-stable, reusable, and effective in water and at 25°C or 1 bar hydrogen gas pressure. Its mild operating conditions will contribute to the low-cost, green, and sustainable production of D-sorbitol for food, cosmetics, and pharmaceutical industries. (2021-02-04)

Nanotech plastic packaging could leach silver into some types of foods and beverages
Antimicrobial packaging is being developed to extend the shelf life and safety of foods and beverages. However, there is concern about the transfer of potentially harmful materials, such as silver nanoparticles, from these types of containers to consumables. Now, researchers reporting in ACS Applied Materials & Interfaces illustrate that silver embedded in an antimicrobial plastic can leave the material and form nanoparticles in foods and beverages, particularly in sweet and sugary ones. (2021-02-03)

Easily assembled gold nanoparticle scaffolding serves as molecular probe
The development of pharmaceutical treatments is difficult -- clinicians and researchers know a certain drug can regulate particular functions, but they might not know how it actually works. Researchers at Tokyo University of Agriculture and Technology (TUAT) have developed a new, streamlined method to better understand the molecular mechanisms underpinning these interactions. (2021-02-01)

Nanoparticle drug delivery technique shows promise for treating pancreatic cancer
Veterans Affairs researchers have designed a new way to deliver pancreatic cancer drugs that could make fighting the disease much easier. (2021-01-28)

Researchers reveal in-situ manipulation of active Au-TiO2 interface
An international joint research team from the Shanghai Advanced Research Institute of the Chinese Academy of Sciences, along with Zhejiang University and the Technical University of Denmark, reported an in-situ strategy to manipulate interfacial structure with atomic precision during catalytic reactions. (2021-01-28)

Cholesterol starvation kills lymphoma cells
Scientists have developed a novel therapy to trick cancer cells into gobbling up what they think is their favorite food - cholesterol -- which actually triggers their destruction. What appears to them as a cholesterol-loaded particle is actually a synthetic nanoparticle that binds to the cancer cells and starves them to death. The study was in lymphoma cells but could be effective in ovarian and kidney cancer. (2021-01-25)

New technique builds super-hard metals from nanoparticles
Brown University researchers have shown a way to make bulk metals by smashing tiny metal nanoparticles together, which allows for customized grain structures and improved mechanical and other properties. (2021-01-22)

Researchers identify nanoparticles that could deliver therapeutic mRNA before birth
Researchers at Children's Hospital of Philadelphia and the School of Engineering and Applied Science at the University of Pennsylvania have identified ionizable lipid nanoparticles that could be used to deliver mRNA as part of fetal therapy. The proof-of-concept study, published today in Science Advances, engineered and screened a number of lipid nanoparticle formulations for targeting mouse fetal organs and has laid the groundwork for testing potential therapies to treat genetic diseases before birth. (2021-01-13)

Strategy tested in mice protects against SARS-CoV-2 & coronaviruses that represent human threats
An immunization strategy tested in mice protects against infection from SARS-CoV-2, as well as from potentially emerging animal coronaviruses, researchers say. (2021-01-12)

Nanoparticle immunization technology could protect against many strains of coronaviruses
Caltech researchers are studying a new type of immunization that may be able to protect against many variants of viruses. (2021-01-12)

'Swiss Army knife' catalyst can make natural gas burn cleaner
'Swiss Army knife' catalyst can bring the combustion temperature of methane down by about half - from above 1400 degrees Kelvin down to 600 to 700 degrees Kelvin. (2021-01-11)

NTU Singapore develops oral insulin nanoparticles that could be an alternative to jabs
NTU Singapore scientists have developed insulin nanoparticles that may become an alternative to insulin injections for diabetics. Delivering insulin orally would be preferable over insulin jabs because it causes less pain, but remains challenging because insulin gets degraded in the gut before it can reach the bloodstream to regulate blood glucose. To overcome this challenge, the scientists designed a nanoparticle loaded with insulin at the core, then coated with alternating layers of insulin and chitosan. (2021-01-11)

Single-dose COVID-19 vaccine triggers antibody response in mice
Across the world, health care workers and high-risk groups are beginning to receive COVID-19 vaccines, offering hope for a return to normalcy amidst the pandemic. However, the vaccines authorized for emergency use in the U.S. require two doses to be effective, which can create problems with logistics and compliance. Now, researchers reporting in ACS Central Science have developed a nanoparticle vaccine that elicits a virus-neutralizing antibody response in mice after only a single dose. (2021-01-08)

Nanoparticle vaccine for COVID-19
Researchers at Stanford are working to develop a single-dose vaccine for SARS-CoV-2 that could potentially be stored at room temperature. (2021-01-08)

Treating an autoimmune disease in mice with an mRNA vaccine
Christina Krienke and colleagues have designed an mRNA vaccine that delayed the onset of and reduced the severity of multiple sclerosis-like disease in mice. (2021-01-07)

Nanoparticle drug-delivery system developed to treat brain disorders
To facilitate successful delivery of therapeutic agents to the brain, a team of bioengineers, physicians, and collaborators at Brigham and Women's Hospital and Boston Children's Hospital created a nanoparticle platform, which can facilitate therapeutically effective delivery of encapsulated agents in mice with a physically breached or intact BBB. In a mouse model of traumatic brain injury (TBI), they observed that the delivery system showed three times more accumulation in brain than conventional methods of delivery. (2021-01-01)

Understanding nanoparticle entry mechanism into tumors
Announcing a new publication for BIO Integration journal. In this commentary the authors Phei Er Saw and Sangyong Jon from Sun Yat-Sen University, Guangzhou, China and the Korea Advanced Institute of Science and Technology, Daejeon, Korea, consider how the entry mechanism of nanoparticles into tumors determines the future direction of nanomedicine development. (2020-12-23)

Physicists solve geometrical puzzle in electromagnetism
A team of scientists have solved the longstanding problem of how electrons move together as a group inside cylindrical nanoparticles. (2020-12-16)

SUTD and MIT scientists first to simulate a large-scale virus, M13
Scientists from the Singapore University of Technology and Design and Massachusetts Institute of Technology have developed a procedure that combines various resolution levels in a computer simulation of a biological virus. Their procedure maps a large-scale model that includes features, such as a virus structure, nanoparticles, etc, to its corresponding coarse-grained molecular model. This approach opens the prospects to a whole-length virus simulation at the molecular level. (2020-12-16)

Pumping a nanoparticle to lase at low power
A laser pointer small enough to get inside a cancer cell and stop its 'engine'? The stuff of science fiction? Scientists working at the nanoscale are chipping away at how to build miniature laser devices capable of intracellular bio-imaging and sensing. (2020-12-01)

Raman holography
Scientists from ICFO and University Rovira i Virgili report on a novel Raman holographic technique capable of tracking individual particles in 3D volumes from one single image. (2020-11-30)

An ionic forcefield for nanoparticles
Nanoparticles are promising drug delivery tools but they struggle to get past the immune system's first line of defense: proteins in the blood serum that tag potential invaders. Now, Harvard researchers have developed an ionic forcefield that prevents proteins from binding to and tagging nanoparticles. In mouse experiments, nanoparticles coated with the ionic liquid survived significantly longer in the body than uncoated particles. (2020-11-25)

Carbon nanocomposites are now one step closer to practical industrial
Multifunctional materials were designed to allow self-diagnostic monitoring through an inexpensive technique. These materials were created by adding the carbon nanoparticles to polymer matrices. Essentially, the use of such materials has the potential to replace sensors in weight critical systems such as aircraft structures, with the material itself being able to provide measurements. (2020-11-23)

Breast cancer discovery could help stop disease's deadly spread
Researchers have identified a gene responsible for the spread of triple-negative breast cancer to other parts of the body and developed a potential way to stop it. (2020-11-20)

New technology allows more precise view of the smallest nanoparticles
Scientists have reported a new optical imaging technology, using a glass side covered with gold nanodiscs that allows them to monitor changes in the transmission of light and determine the characteristics of nanoparticles as small as 25 nanometers in diameter. (2020-11-16)

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)

A better understanding of coral skeleton growth suggests ways to restore reefs
In a new study, University of Wisconsin-Madison physicists observed reef-forming corals at the nanoscale and identified how they create their skeletons. The results provide an explanation for how corals are resistant to acidifying oceans and suggest that controlling water temperature, not acidity, is crucial to mitigating loss and restoring reefs. (2020-11-09)

Higher-resolution imaging of living, moving cells using plasmonic metasurfaces
Researchers at Kyushu University have demonstrated that placing cells on a plasmonic metasurface of self-assembled gold nanoparticle can improve the resolution of images of living cells taken in real-time under a widefield fluorescence microscope. The metasurface effectively confines light emission from parts of the cell near the metasurface to a nano-thickness plane, providing a simple method to improving both axial and lateral resolution. (2020-11-06)

The importance of good neighbors in catalysis
Are you affected by your neighbors? So are nanoparticles in catalysts. New research from Chalmers University of Technology, Sweden, published in the journals Science Advances and Nature Communications, reveals how the nearest neighbors determine how well nanoparticles work in a catalyst. (2020-11-03)

Ultrapotent COVID-19 vaccine candidate designed via computer
An ultrapotent nanoparticle candidate vaccine against COVID-19 has been developed with structure-based vaccine design techniques invented at UW Medicine. It is a self-assembling protein nanoparticle that displays 60 copies of the SARS-CoV-2 Spike protein's receptor-binding domain in a highly immunogenic array. The molecular structure of the vaccine roughly mimics that of a virus, which may account for its enhanced ability to provoke an immune response. (2020-11-02)

Do the twist: Making two-dimensional quantum materials using curved surfaces
Scientists at the University of Wisconsin-Madison have discovered a way to control the growth of twisting, microscopic spirals of materials just one atom thick. The continuously twisting stacks of two-dimensional materials built by a team led by UW-Madison chemistry Professor Song Jin create new properties that scientists can exploit to study quantum physics on the nanoscale. (2020-10-22)

A first-of-its-kind catalyst mimics natural processes to break down plastics
A team of scientists led by the U.S. Department of Energy's Ames Laboratory has developed a first-of-its-kind catalyst that is able to process polyolefin plastics, types of polymers widely used in things like plastic grocery bags, milk jugs, shampoo bottles, toys, and food containers. (2020-10-19)

Ultra-sensitive nanothermometer under ambient conditions
Nanoscale temperature measurement with high sensitivity is important to studying many phenomena ranging from heat dissipation in nanocircuits to thermal processes in live systems. The most sensitive nanothermometer working under ambient conditions is demonstrated by hybridizing the critical magnetism of magnetic nanoparticles and the ultra-sensitive diamond-based magnetometer. The sensitivity of the hybrid nanothermometer is as high as 76 uK/sqrt(Hz). The ultra-sensitive nanothermometer offers a new tool to investigate thermal processes in nanoscale systems. (2020-10-14)

Nanoscale machines convert light into work
Researchers have developed a tiny new machine that converts laser light into work. These optically powered machines self-assemble and could be used for nanoscale manipulation of tiny cargo for applications such as nanofluidics and particle sorting. (2020-10-08)

New drug carrier systems
A UD research team has devised tiny cargo-carrying systems many times smaller than a human hair, made from molecules called peptides that help provide structure for cells and tissues. The team has reported advances in the nanoparticle design that allow them to control the shape of the nanoparticles to allow them to better bind to tissue in the body and stay in a particular location. (2020-10-08)

A step toward a universal flu vaccine
Researchers at MIT and the Ragon Institute of MIT, MGH, and Harvard are now working on strategies for designing a universal flu vaccine that could work against any flu strain. In a new study, they describe a vaccine that triggers an immune response against an influenza protein segment that rarely mutates but is normally not targeted by the immune system. (2020-10-07)

Zebrafish embryos help prove what happens to nanoparticles in the blood
What happens to the nanoparticles when they are injected into the bloodstream, for example, to destroy solid tumours? With new results published in ACS Nano, researchers from Aarhus University are now ready to tackle such a challenging question using zebrafish embryos as a new study model in nanomedicine and nanotoxicology. (2020-09-30)

NTU Singapore scientists devise 'Trojan horse' approach to kill cancer cells without using drugs
Cancer cells are killed in lab experiments and tumour growth reduced in mice, using a new approach that turns a nanoparticle into a 'Trojan horse' that causes cancer cells to self-destruct, a research team at the Nanyang Technological University, Singapore (NTU Singapore) has found. (2020-09-23)

Study on the effect of rosemary and ginger essential oils against Klebsiella pneumoniae
This study aims at investigating the antimicrobial and antibiofilm effect of rosemary and ginger essential oil-based nano-sized formulations on colistin resistant K. pneumonia clinical isolates. (2020-09-21)

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