Articles tagged with Nanoparticles
Scientists have developed a new, inexpensive technique to create color-shifting nanoparticles inspired by beetle shells. The method produces tiny particles that can be easily controlled, enabling adjustable colors within materials or fabrics. This breakthrough could lead to the production of easier-to-read sensors and anti-tampering tags.
Assemblies of metallic nanoparticles behave like bulk magnets, displaying intriguing shape-dependent behavior that could improve high-density information storage technologies. The structures' magnetic behavior is influenced only by the shape of the assemblies, revealing a single bulk ferromagnet.
The NANOaers project investigates airborne nanoparticle mixtures and their impact on respiratory health. Researchers analyze the behavior of nanoparticles with other chemicals, aiming to predict their fate and potential health effects.
Scientists used computational models to investigate heterostructured nanoparticles and found that atomistic defects can jeopardize solar cell performance. They predicted a new material with improved optical properties, opening doors for more efficient energy conversion.
Researchers at Swansea University have created a new class of nanomaterials with tunable wettability, which can be used for antifouling and water-proofing surfaces. The materials are inexpensive, non-toxic, and can be applied via spray or spin-coating to various surfaces.
Researchers developed nanoparticles that combine two immunotherapy tactics to target and destroy tumor cells, slowing growth in mice with different cancers. The treatment showed promise in treating various tumor types without severe side effects.
Researchers at Columbia University have developed a new technique to create superstrong, flexible polymers inspired by the nacre of oyster shells. The method uses controlled self-assembly of nanoparticles in a polymer matrix to improve mechanical properties.
A new technique uses magnetic nanoparticles to separate oil from water through electrostatic force and a magnet, showing promise for improving water treatment in oil and gas production. The researchers believe their method could also be used to treat millions of gallons of fresh water and clean drinking water.
Researchers at EPFL developed a dynamic test method that replicates blood and lymphatic systems, allowing for more accurate nanoparticle testing. This method reduces discrepancies between in vitro and in vivo tests, providing valuable insights into nanoparticle behavior.
The University of Huddersfield has launched MIAMI-2, a £3.5 million microscope and ion accelerator facility, one of only three in Europe, enabling nanoscale investigation of radiation damage and advanced materials analysis.
Researchers have developed a new cathode material that uses porous Ti4O7 nanoparticles to confine polysulfides, resulting in high specific capacity and stable performance. This material has the potential to replace expensive and toxic heavy-metal compounds used in traditional lithium-sulphur batteries.
Researchers at UC San Diego have developed nanoparticles that mimic the behavior of natural melanosomes, protecting skin cells from UV radiation. These synthetic melanin-like nanoparticles show promise as artificial melanosomes for novel therapy development.
Researchers have devised an ultrafast tunable metamaterial based on gallium arsenide nanoparticles that can be turned on and off quickly, paving the way for ultrafast optical computers. The material consists of semiconductor nanoparticles that concentrate and interact with light efficiently.
Researchers at KAUST have developed a strategy to create highly fluorescent nanoparticles through molecular design of conjugated polymers. The twisted shape of the molecules produces smaller, brighter particles with tunable spectroscopic properties, opening up new opportunities for bio-imaging and nanomedicine.
The novel method enables making size-tailored zinc peroxide nanoparticles in an environmentally friendly manner. The as-synthesised ZnO2 nanoparticles have potential to kill tumor cells through apoptotic and non-apoptotic mechanisms.
A non-toxic mixture of chitin-rich crab shell powder and silver nanoparticles effectively inhibits the growth of mosquito larvae and prevents bacterial species from multiplying. The eco-friendly solution shows promise in controlling the spread of disease-carrying mosquitoes, including those responsible for malaria.
Researchers at Case Western Reserve University developed a gene-carrying nanoparticle that delivers healthy RPE65 genes to photoreceptor cells, preventing vision loss in mice with Leber congenital amaurosis. The therapy's success indicates promise for treating other inherited visual disorders.
Researchers created uniform 3.2 nm platinum-zinc particles with twice the catalytic activity per surface site, outperforming larger particles containing the same amount of platinum.
Wei Chen, a UTA physics professor, has received the Best Paper Award from American Scientific Publishers for his pioneering work on using nanoparticles to treat cancer. His research involves activating toxins to kill cancer cells and has led to over 20 further journal articles and international recognition.
A Mayo Clinic research team has developed a new type of cancer-fighting nanoparticle that can shrink breast cancer tumors by up to 70-80% and prevent recurrence. The nanoparticles work by engaging the entire immune system to kill cancer cells, prompting the body to create its own memory system to minimize tumor recurrence.
Osaka University researchers created a non-polymeric mixture with a lower critical solution temperature, exhibiting reversible transitions between a clear solution and a suspension. The system can change color depending on its state and will be useful for developing new thermo-responsive materials.
Researchers explore metal nanoparticles for visible-light photocatalysis, enhancing charge-carrier separation and achieving broadband light-harvesting. However, challenges remain in optimizing particle size and improving efficiency.
Researchers at Tecnalia and the ICMCB-CNRS have developed an ultrarapid synthesis method for nano-tobermorite, which speeds up concrete hardening. The technology enables mass production of high-quality tobermorite nanoparticles within minutes, not days.
A novel form of iron, combining protein fibers and iron nanoparticles, has been discovered to fortify food and drinks with iron. This new compound has been shown to cure iron deficiency in rats and is easily digested.
Scientists create programmable nanostructures using pH-sensitive DNA locks to control the optical properties of plasmonic metamolecules. This technology has potential applications in sensors, optical switches, and phase shifters with tailored functionalities.
A new nanoparticle vaccine has been developed to target several different cancer types by delivering tumor antigens to immune cells. The nanovaccine showed anti-tumor efficacy in multiple tumor types in mice, slowing tumor growth and extending animal lives.
Scientists study how iron nanoparticles oxidize at the nanoscale, forming unique structures like hollowed-out nanoshells. They combine experimental techniques with computer simulations to gain insight into the Kirkendall effect.
Researchers analyzed 270 studies and found a mixed picture of nanoparticles' behavior, with their reactions depending on acidity, mineral concentration, and organic substances. The data is inconsistent, insufficiently diverse, and poorly structured, hindering universal predictions.
Sharon C. Glotzer received the 2017 MRS Communications Lecture Award for her work on polymer-tethered nanoparticles. Her paper, published in MRS Communications, demonstrates the use of computational tools to design and assemble functional materials nanostructures.
Researchers at Fred Hutchinson Cancer Center developed biodegradable nanoparticles that can genetically program immune cells to recognize and destroy cancer cells. The study showed that nanoparticle-programmed immune cells, known as T cells, can rapidly clear or slow the progression of leukemia in a mouse model.
Researchers at the University of Calgary discovered that nanoparticles can enhance or attenuate viscous fingering, a phenomenon where fluids converge in finger-shaped patterns. The study found that nanoparticle deposition rates and diffusion rates can destabilize flows, creating vortex dipoles.
Researchers at the University of North Carolina Lineberger Comprehensive Cancer Center have discovered a potential novel strategy for improving immunotherapy treatments against cancer. By binding two compounds to a nanoparticle, they were able to improve stimulation of T-cells and increase survival rates in preclinical models.
Researchers at ETH Zurich have developed a method to create nanoparticles with dysprosium atoms that can be magnetised and maintain their magnetic information. The scientists are now looking to stabilise the magnetisation at higher temperatures and longer periods of time.
Researchers have developed a simple way to integrate metal nanoparticles in nail polish, resulting in durable, transparent polishes with metallic sheen. The technique could also be used to create coatings for medical devices.
Using supercomputers, researchers simulate phase transformations in metal surfaces induced by lasers. This helps predict material properties for practical applications such as engineering of new metals.
Chemists from Russia and Switzerland develop biosafe luminescent nanoparticles for imaging tumors and blood vessels, offering an alternative to toxic quantum dots. The particles are composed of hafnium oxide doped with rare earth metals, which provide high luminescent properties while maintaining biosafety.
Researchers at the University of Illinois have developed a new technique to deliver RNA to soybean aphids using nebulization, which appears to block the function of specific genes. The technique has shown promise in improving the uptake of RNA through tiny breathing tubes and may aid in the development of new pest-control systems.
Researchers at the University of Bradford have developed a peptide that blocks RAN protein and kill cancer cells. The new treatment uses nanoparticles to deliver the peptide directly into cancer cells, showing promising results in lab tests.
Researchers at the University of Barcelona have developed a new bonding technique for chips using inkjet printers with silver nanoparticles, enabling the creation of rigid and flexible hybrid circuitry. The method uses inkjet printing technology to assemble surface mount devices, achieving high electrical conductivity and reliability.
Researchers from OIST Graduate University have developed a new approach to produce uniform iron nanocubes using magnetron-sputtering inert-gas condensation. These nanocubes exhibit high sensitivity and specificity in detecting NO2 gas, with potential applications in diagnosis of asthma patients and environmental pollution detection.
Researchers developed a new method to control nanoparticle organization in ultrathin polymer films through entropy-driven segregation. This approach, SCPINS, enables well-controlled nanoparticle organization on a submicron scale without tuning enthalpic interactions through chemistry.
Researchers at FSU have made a breakthrough in understanding nanoparticles' potential for delivering medicine to cells. They found that specific silicon particles can be toxic, but also enhance cellular uptake of therapeutic agents.
Scientists found that small nanoparticles, even those as small as 1.8 nm, can dramatically improve the properties of polymer materials. This is because smaller particles interact with fewer polymer segments, allowing for new properties such as improved temperature resistance and faster viscosity changes.
Pitt's John Keith, Giannis Mpourmpakis and Christopher Wilmer received $500K each for projects on CO2 conversion, nanoparticle growth and new 'pseudomaterials'. The grants will support student education and community outreach initiatives.
Researchers at Sandia National Laboratories have created a method to enhance hydrogen storage properties by confining nanoparticles, enabling quick refueling for hydrogen fuel cell electric vehicles. The new material shows high lithium nitride content and rapid hydrogen absorption and release rates.
The development of efficient luminescent solar concentrators (LSCs) using silicon nanoparticles has the potential to create photovoltaic windows that can capture over 5% of the sun's energy at unprecedented low costs. The technology, developed by researchers from the University of Minnesota and University of Milano-Bicocca, uses silico...
Chronic exposure to titanium dioxide nanoparticles can decrease the ability of small intestine cells to absorb nutrients and act as a barrier to pathogens. This can lead to slowed metabolism and increased difficulty in absorbing certain nutrients like iron, zinc, and fatty acids.
Researchers have developed plant-made virus shells that can deliver small molecules to cancer cells, using the natural binding affinity of these nanoparticles for targeted drug delivery. The findings suggest a potential new approach for treating cancer with increased precision and reduced side effects.
Lipid nanoparticles (SLNs) have shown increased effectiveness in delivering nucleic acids, with advantages including protection against degradation and boost to transfection process. Researchers are exploring their application in treating various diseases, including degenerative disorders of the retina, infectious diseases, and cancer.
A new material has been developed using a simple method that can change color in response to environmental changes, making it suitable for use as sensors. The material also shows promise for bioimaging applications, allowing for non-invasive measurement of molecular interactions in real-time.
Researchers at Salk Institute use mRNA therapy to deliver instructions for clotting protein, achieving normal clotting and minimal immune response in mice. The therapy shows potential as a cost-effective and safer alternative to existing treatments for hemophilia B and other genetic diseases.
Researchers have developed a new technique to track the movement of cancer cells using reversible, photo-luminescent carbon nanoparticles. The study demonstrates that these particles can be used for intracellular imaging and drug delivery tracking without photo-bleaching issues.
Researchers have developed a direct radiolabeling method for nanomaterials using nanographene, eliminating the need for chelators. This approach significantly improves bioimaging accuracy and reduces biases. The method was tested in mice models and showed promising results.
Researchers have developed a new technique using DNA 'barcodes' to rapidly screen nanoparticles for therapeutic delivery. The method allows hundreds of different types of nanoparticles to be tested simultaneously in just a handful of animals.
Amélie Juhin, a physicist and spectroscopist, has been awarded the ESRF Young Scientist of the Year 2017 prize for her experimental and theoretical studies on resonant X-ray scattering and X-ray dichroism. Her research focuses on probing electronic and magnetic properties of nanoparticles and molecular magnets.
Researchers at UMass Amherst have designed a novel nanoparticle-based delivery system to enhance CRISPR/Cas9's treatment potential for genetic diseases. The new delivery method achieved an editing efficiency of about 30 percent in cultured cells, with successful nuclear delivery in approximately 90 percent of cells.
Researchers from Geneva and Fribourg have developed a rapid screening method to select the most promising nanoparticles for medical applications. The new approach can determine biocompatibility in under two days, reducing the need for animal testing and enabling personalized treatment.
Researchers used a combination of computational power and experimental data to study magnetism in a real iron-platinum nanoparticle. The team was able to precisely model the atomic structure and simulate its magnetic properties, revealing defects and imperfections that affect performance.
Researchers mapped over 23,000 individual atoms in an iron-platinum nanoparticle to reveal the material's defects and properties. The study reveals unique arrangements of atoms at grain boundaries, which significantly influence material properties.
Researchers use advanced electron microscopy to create 3D reconstruction of nanoparticle, enabling them to measure chemical order and disorder at the single-atom level. The study reveals insights into the material's properties and potential applications in high-density hard drives and disease detection.