Articles tagged with Nanoparticles
Researchers at Lund University estimate that sea traffic emissions account for almost half of measured particles in coastal air, exceeding previous estimates. Nanoparticles can penetrate deeper into the lungs than larger particles, contributing to health issues.
Researchers at Brigham and Women's Hospital have developed a new approach to predict which tumors will be most responsive to therapeutic nanoparticles. They use an FDA-approved magnetic nanoparticle and MRI to identify tumors with high or low EPR, a physiological condition that allows nanoparticles to accumulate faster.
Researchers at Vanderbilt University have discovered a way to overcome the limitations of nanoscale materials in batteries by using iron pyrite quantum dots. These ultrasmall nanoparticles allow for faster charging and longer cycle life, making them a promising solution for future battery technology.
Researchers at the University of Michigan found that zinc oxide nanopyramids can disrupt the growth of methicillin-resistant Staphylococcus aureus (MRSA) on medical implants, reducing bacterial load by over 95%. The coating may enable antibiotic treatments to succeed or allow the human immune system to take over.
Researchers at the University of York have developed a self-assembling gel that can selectively extract precious metals like silver and gold from electronic waste. The gel is then converted into conducting nanoparticles, enhancing its electrical conductance and making it suitable for various high-tech applications.
Researchers at Washington University in St. Louis developed nanoparticles that increase the nutrient content and growth of tomato plants. The study found that treated plants produced nearly 82% more fruit than untreated ones, with higher antioxidant content.
Researchers have created genetically encoded magnetic protein nanoparticles that can be produced within cells, allowing for non-invasive tracking and monitoring of cell signals. This technology has the potential to observe communication between neurons, activation of immune cells, and stem cell differentiation, among other phenomena.
Researchers found that nanoparticles can evade the human immune system by changing their sugar coating, making them more visible during MRI imaging. This breakthrough could lead to the development of new medicines to target tumors.
Research on biodegradable nanomedicine shows promise in selectively destroying ovarian cancer cells left behind after surgery. The technology uses nanoparticles to provide real-time imaging and phototherapy treatment during surgery, achieving complete tumor eradication in mice with no adverse effects.
Researchers created a compact photonic switch on silicon nanostructures, enabling ultrafast optical pulse switching at femtosecond rates. This device could revolutionize computing by transferring data at tens and hundreds terabits per second, outperforming traditional electronic devices.
Researchers identified key factors leading to nanoparticles' instability and aggregation in industrial applications. The conditions include the electric force imbalance between particles and attractive or repulsive forces.
Researchers at Helmholtz-Zentrum Berlin improved ultrathin CIGSe solar cells by integrating nanoparticles into the back contact, resulting in increased efficiency and reduced charge carrier loss. This innovative approach enables more efficient light trapping and absorption, paving the way for further design enhancements.
New research shows that candle soot can be used to power the lithium batteries in electric cars, offering a cost-effective and scalable solution. The discovery opens up possibilities for using carbon in more powerful batteries, which could drive down production costs and increase efficiency.
Researchers discovered a technique to renature denatured proteins, restoring their original spatial structure and increasing activity by 180%. This method uses nanoparticles to bind to protein molecules, preventing aggregation and reactivating the active center.
Nanoparticles wrapped in human platelet membranes deliver drugs to targeted sites, increasing therapeutic effects for diseased rats and mice. The platelet-membrane-coated nanoparticles selectively bind to damaged blood vessels and certain pathogens, minimizing the spread of bacteria and enhancing antibiotic efficacy.
Researchers have found that platinum nanoparticles sitting on cheap metal oxide materials convert carbon monoxide into carbon dioxide. The chemical reactions occur due to the interplay between platinum particles and the iron-oxide surface, making them efficient. This new knowledge can be used to create better catalysts.
Physicists have developed a single silicon nanoparticle as an ultrafast all-optical transistor, enabling ultrafast switching and promising for optical computing. The study found that the nanoparticle's properties can be dramatically changed by irradiating it with intense laser pulses, allowing for control of light scattering direction.
Researchers at Chalmers University of Technology have developed a new experimental approach called plasmonic nanospectroscopy to study individual nanoparticles. This method reveals significant differences in properties between seemingly identical particles, which could lead to improved hydrogen sensors for fuel cell cars.
Researchers have developed a system to produce stable, amorphous nanoparticles that dissolve quickly and can be made from a wide range of materials, including inorganic substances with high crystallization propensity. These nanoparticles exhibit different electronic, magnetic, and optical properties than their crystalized counterparts.
Scientists at the University of California, San Diego have developed a new method to build microscopic robots with complex shapes and functionalities. The researchers created microfish-shaped microrobots that can swim efficiently in liquids, are chemically powered by hydrogen peroxide, and magnetically controlled.
Researchers have developed an electrospray technique to improve Langmuir-Blodgett assembly, reducing the need for toxic organic solvents and increasing efficiency. This approach enables the creation of well-dispersed nanoparticle monolayers with precise control over packing density.
Researchers developed a paper-based device that changes color to detect Ebola, yellow fever, or dengue viruses. The test takes minutes and doesn't require electricity, providing a potential solution for remote, low-resource areas.
Scientists at the University of Zurich successfully controlled colloidal nanoparticles' motion, harnessing electric and optical forces to manipulate their behavior. The technique enables rapid displacement, low energy consumption, and large storage capacity, making it suitable for new data storage applications or high-resolution displays.
A new method using nanotechnology-based paper pages can eliminate water-borne bacteria, making drinking water safe for millions. The Drinkable Book, developed by Dr. Theresa Dankovich, uses metal nanoparticles to purify up to 26 gallons of water per page.
Researchers create a technique to emit electrons in a controlled direction using near-fields induced by strong laser pulses on glass nanoparticles. This method has potential applications in cancer therapy and imaging methods.
Researchers developed an EBV vaccine using nanoparticles that induce potent neutralizing antibodies in mice and nonhuman primates. This approach is promising for developing an effective EBV vaccine for humans.
Engineered nanoparticles from common products like paint and sunscreen can harm aquatic organisms when they settle in sediments. The review calls for further research into nanoparticle fate and toxicity in these ecosystems.
Researchers at OIST have developed a way to prevent noble metal nanoparticles from compacting by encapsulating them individually in a porous shell made of a metal oxide. This technique improves the rate of electrochemical reactions in methanol fuel cells, leading to more efficient fuel cell performance.
Researchers at MIT have developed a novel electrode made of nanoparticles with a solid shell, and a yolk that can change size without affecting the shell, improving cycle life and energy storage. The use of aluminum as the key material has proven to be high-rate champion among high-capacity anodes.
Researchers from NC State University developed a new method to bind nanoparticles using oily liquid shells, mimicking the formation of sandcastles. The technique creates ultraflexible microfilaments and networks with reversible binding, enabling dynamic reconfigurable multifunctional materials.
Researchers at Johns Hopkins Medicine have developed a DNA-loaded nanoparticle that can penetrate the human airway mucus barrier in lungs, offering a potential breakthrough for treating cystic fibrosis and other lung diseases. The biodegradable nanoparticles successfully delivered therapeutic genes to the lungs of animals, producing hi...
Researchers at Georgia State University developed a vaccine containing virus-like nanoparticles that induces long-term protection against RSV. The study found that mice vaccinated with these particles showed no severe pulmonary disease and lower levels of inflammatory markers after infection.
Researchers at the University of Leicester and CNRS have observed the growth of free nanoparticles in helium gas, revealing new information about their structure. The study found that nanoparticles grow by clustering together under increasing pressure, similar to decaffeination processes.
Researchers have developed a hybrid photocatalyst using titanium dioxide nanoparticles, silver, and reduced graphene oxide that can break down BPA under visible light. This new material has significantly improved photocatalytic activity compared to traditional TiO2 nanoparticles.
Researchers at Berkeley Lab developed a new technique called SINGLE that provides 3D images of individual platinum nanoparticles in solution. This allows for the study of their structures and properties, which is crucial for applications in renewable energy, catalysis, and more.
Researchers have developed a novel imaging method to capture the 3D structures of nanocrystals, which could be used to fight cancer and collect renewable energy. The method reveals asymmetrical multi-domain structures in platinum nanoparticles.
NC State engineers have created an effective and environmentally benign method to combat bacteria using silver-ion infused lignin nanoparticles, which effectively kill E. coli and other harmful microorganisms without harming the environment.
Scientists developed a technique to enhance nanoparticle signals using an optical microcavity, achieving near fundamental diffraction limit resolution. This enables the study of individual nanoparticles' optical properties, promising potential breakthroughs in biology, chemistry, and nanoscience.
The new approach generates carbon nanoparticles in a few hours using store-bought molasses and only a handful of ingredients. The nanoparticles are coated with polymers that fine-tune their optical properties and release drugs at body temperature, making them ideal for targeted therapy.
Researchers at Tufts University have observed individual atoms of iodine-125 decay and transform into tellurium-125 using a scanning tunneling microscope. The gold-bonded isotopes emit six times more low-energy electrons, which could destroy tumor DNA without affecting healthy tissue.
Researchers have discovered that the mineral particles in dentin are precompressed, which helps prevent cracks from developing and increases resistance to damage. This natural mechanism may inspire the development of tougher ceramic structures for tooth repair or replacement.
Researchers at Brookhaven National Laboratory have developed a method to selectively rearrange nanoparticles in three-dimensional arrays, producing different configurations or phases from the same nano-components. This allows for dynamic control over material properties, such as response to light or magnetic fields.
The researcher will lead a collaboration to develop nanotechnology-based therapeutic platforms that can treat biofilm infection in chronic wounds. The goal is to create minimally invasive treatments with fast recovery times and fewer side effects.
Researchers have designed a nanoparticle-based therapy that effectively treats mice with multiple myeloma, a cancer of immune cells in the bone marrow. The nanoparticles carry a Myc inhibitor, which blocks a protein active in many types of cancer, and increase survival by 23 days compared to control groups.
Researchers have found that carbon-based nanoparticles can produce low-energy electrons through plasmon excitation, making them more lethal to tumors and potentially inducing focused destruction of cancer cells. This breakthrough could lead to the development of novel types of sensitizers for proton radiotherapy.
A team of scientists from OIST and international partners has created a sensor that can detect carbon monoxide, a common industrial pollutant, using copper oxide nanowires decorated with palladium nanoparticles. The sensor demonstrates significant improvements in detecting gas emissions compared to existing methods.
Researchers at Aalto University have discovered a new method to enhance the polarization of light in ferromagnetic materials. By patterning magnetic materials into arrays of nanoscale dots, they can create highly controllable modifications of light polarization when it reflects from the array. This breakthrough has the potential to adv...
Exposure to metal oxide nanoparticles can change microbial metabolism and gut environment, impacting overall health. Researchers found specific changes in microbial community and gut microenvironment after nanoparticle exposure.
Researchers developed biocompatible and biodegradable nanoparticles with effective antibacterial activity against E. coli, S. aureus, and B. subtilis. The NPs disrupt bacterial walls, induce reactive oxygen species, and cause cell invagination, making them a promising antimicrobial agent.
Researchers developed a method to fabricate structured composite materials using directional bindings of shaped particles for predictable assembly. The approach uses linker molecules made of complementary strands of DNA to control the arrangement of particles, achieving long-range order in large-scale assemblies and clusters.
University at Buffalo researchers have discovered a way to easily and effectively fasten proteins to nanoparticles, showing promise for developing an HIV vaccine and targeting cancer cells. The new biotechnology uses modified proteins and nanoparticles made of natural pigments and metal, and has been tested with impressive results.
Researchers at Purdue University have developed a new method to mass-produce electronic circuits made of liquid-metal alloys using inkjet printing. This technology enables the creation of stretchable garments and pliable robots that can interact with computers or provide therapeutic benefits. The approach involves dispersing liquid met...
Researchers analyzed cytotoxicity and non-specific cellular uptake of upconversion nanoparticles (UCNPs) in human skin cells. UCNPs convert near-infrared radiation to visible light, allowing for detection and monitoring of cancerous cells.
Scientists at CHOP use biodegradable nanoparticles to deliver anticancer drugs selectively to tumors, inhibiting growth and prolonging survival in animal models. The approach exploits the EPR effect, allowing for efficient delivery while avoiding toxicity in healthy tissues.
Researchers develop a novel way to apply drugs to dental plaque using nanoparticles that release antibacterial agents in response to acidic environments. This innovation has shown promising results in reducing the severity of cavities and promoting better oral health.
Researchers at Princess Margaret Cancer Centre successfully converted microbubble technology into nanoparticles that retain their imaging properties. The discovery has the potential to enhance drug delivery, prolong tumour visualization, and improve cancer treatment precision.
Researchers from the University of Montreal developed nanorobotic agents that can open the blood-brain barrier, allowing therapeutic molecules to be delivered directly to the brain. The technique involves using magnetic nanoparticles and radio-frequency fields to create a temporary opening in the barrier.
Researchers developed a new technique to visualize and track molecules in real-time, revealing their dynamic behavior in living cells. This provides a more realistic picture of how molecules move within cells, shedding light on previously hidden factors involved in nanocrystal assembly.
Scientists convert packing peanuts into high-tech carbon microsheets and nanoparticles for use in rechargeable batteries, achieving higher energy storage capacity than existing materials. The new process uses lower temperatures and produces more environmentally friendly materials.
Researchers successfully used green tea compounds to enhance imaging of cancer tumors in mice via MRIs. The novel agents showed a strong contrast between tumor and non-tumor cells, suggesting promising candidates for future use.