Articles tagged with Nanoparticles
Researchers have created a new Pt-based catalyst using the 'composite energy trap' model, which effectively inhibits migration and agglomeration of loaded nanoparticles. The model catalyst retains high activity even after aging at 1000°C, offering promising results for sintering-resistant nano-catalysts.
Researchers at Berkeley Lab have developed a technique to produce atomic-scale 3D images of nanoparticles, enabling precise measurement of their atomic positions. They also created an antiferromagnetic switch for computer memory and processing applications, revolutionizing spin-based electronics.
A University of Michigan-led team has produced a synthetic microparticle with a twisted, spiky structure that surpasses nature's complexity. The particles show promise for improving fluid-and-particle mixes and could lead to new technologies in holographic projectors and biosensors.
Researchers at Oregon State University have developed a photo-responsive nanoparticle-based treatment to alleviate the symptoms of endometriosis. The nanoparticles can detect and remove lesions associated with the disorder, offering a promising new approach to treating the condition.
Researchers have developed a new methodology to resolve the 3D structure of individual nanoparticles with atomic-level resolution, six times smaller than the smallest atom. This breakthrough enables scientists to control nanoparticle properties and behavior in various environments.
The European Research Council has awarded 2.5 million euros to the e-DOTS project, led by Ikerbasque Professor Maurizio Prato, to explore the structure and properties of carbon nanodots for biomedical imaging and therapeutic applications. The project aims to develop an automated system to discover new nanodots with tailored properties.
Researchers at CNRS/Muséum National d'Histoire Naturelle/Ministère de la Culture have solved the mystery of the world's first colour photographs. They found that colours were due to the presence of metallic silver nanoparticles, which reorganise according to light energy, absorbing all colours except their own.
Researchers found that nanoparticles coated with trastuzumab were better retained in tumors and stimulated an anti-cancer immune response, even in HER2-negative tumors. The study suggests that the host's immune system plays a crucial role in determining nanoparticle retention and efficacy.
A team of microbiologists at the University of Bayreuth created a modular system for genetic reprogramming of bacteria, turning them into cell factories for multifunctional magnetic nanoparticles. These nanoparticles combine various useful functions and properties, offering a promising new material in biomedicine and biotechnology.
Researchers found that core-shell configuration of a Ni-Au catalyst is lost during reaction and recovered afterwards. The Ni-Au alloy, not the shell, acts as the active surface, explaining high CO selectivity.
Researchers have discovered a novel approach to selectively target and kill several types of cancer cells using nanoparticles that assemble into crystals. The crystals induce lysosomal swelling, loss of membrane integrity, and cell death in cancer cells but do not harm non-cancerous cells.
Scientists tracked lithium ion movement in LTO nanoparticles, discovering 'intermediates' that enable rapid transport. Real-time tracking revealed distorted atomic arrangements providing an 'express lane' for lithium ions.
A team of researchers has created a novel photoacoustic imaging method that can penetrate up to 3.4 cm into deep tissues using a nickel-based nanoparticle contrast agent. This advancement enables the visualization of deep organs without causing harm or using ionizing radiation, paving the way for improved clinical diagnosis and practices.
Researchers have synthesized manganese-zinc ferrite nanoparticles that can deactive cancer cells without harming healthy tissues. The particles' unique magnetic properties allow them to heat up only at the Curie temperature, making them suitable for treating cancer with minimal damage.
The nanoscale spectroscopy review highlights the potential of luminescent nanoparticles in diverse areas such as imaging, biomarker detection and data storage. The field aims to understand the properties of artificial atoms to control and tailor them for specific applications.
A new study by West Virginia University researcher Nancy Lan Guo found that printer toner nanoparticles can change genetic and metabolic profiles, increasing disease risk. The study used rat models and found significant genomic changes linked to cardiovascular, neurological, and metabolic disorders.
Researchers developed nanoparticles containing gliadin to treat celiac disease by restoring immune tolerance. In mouse models, these nanoparticles reduced inflammation and tissue damage, inducing gene expression profiles associated with immune tolerance.
Researchers at Ohio State University developed RNA nanoparticles to deliver chemotherapeutic drugs paclitaxel and camptothecin, increasing their water solubility and targeting tumor cells. The nanoparticles showed precise drug loading and retention of anti-tumor activity with minimal toxicity.
Scientists create tiny nanoparticles made of dendritic polyglycerols to target cancer cells via EGFR receptors. The particles are designed to visualize tumor cells using imaging techniques and can be modified to carry therapeutic agents, offering a potential therapeutic approach.
Researchers found that using plant-based analogs of cholesterol improves the shape and structure of nanoparticles, allowing them to deliver genes more effectively. This boosts delivery by up to 10-fold and enables patients to be treated with higher efficacy.
A team developed new hydrogen evolution photocatalysts (HEPs) made from two semiconducting materials, enhancing energy storage. The HEPs absorb more visible light, increasing hydrogen production rates an order of magnitude beyond current single-component inorganic HEPs.
Researchers propose novel temporal-spatial ordering and dynamic smart behavior in hollow multishell structures (HoMS), enabling efficient energy conversion and storage. The unique structure facilitates sequential electromagnetic wave harvesting and cascade catalytic reactions.
A recent study at BESSY II used X-ray microscopy to investigate how nanoparticles interact with cells. Researchers found that nanoparticles can change the number and type of cell organelles, such as increasing mitochondria and decreasing lipid droplets. This suggests that different nanoparticle coatings may have similar effects on cells.
Research by Virginia Tech scientists found that tiny titanium oxide nanoparticles in coal smog and ash can cause lung damage in mice after a single exposure. The particles trigger an immune response, leading to macrophage death and lung failure.
Scientists at the University of Freiburg created nanoparticles with polysaccharides, which allow them to pass through the kidneys and be excreted in urine. This breakthrough enables the combination of tumor accumulation and kidney clearance in a single nanoparticle, paving the way for safer nanomedicine administration.
Researchers laser-cooled a 150-nanometer glass sphere containing 100 million atoms to its quantum ground state, revolutionizing the study of macro-quantum physics. This achievement enables unprecedented opportunities to test fundamental physics and probe the boundaries between classical and quantum mechanics.
Scientists develop new bio-based material combining chitin nanoparticles and alginate for antimicrobial properties and flexibility. The material has potential uses in surgical threads, tissue engineering, wound healing, and burn treatments.
Researchers have invented a Trojan Horse nanoparticle that selectively targets and eats away at plaque-causing cells, reducing plaque size and stabilizing it. This approach shows promise as a potential treatment for atherosclerosis, the leading cause of death in the US.
Researchers at Penn State have developed a method to produce over 65,000 different types of nanoparticles, each containing up to six different materials. This breakthrough allows for the creation of complex particles with precise interfaces, opening up new possibilities for electrical and optical applications.
Researchers at Northwestern University discovered that injecting nanoparticles into the bloodstream can significantly reduce brain swelling and damage after a traumatic brain injury. The treatment may provide new hope for individuals with significant traumatic brain injuries, including young athletes and soldiers.
Researchers at the Institute for Basic Science have developed a new strategy to convert CO2 into oxygen and pure carbon monoxide using nanoparticles. The hybrid catalyst, made of blue titania, tungsten trioxide, and silver, shows 200 times higher performance than previous versions.
Metallic nanotechnology is advancing rapidly, with applications in renewable energy harvesting, cancer treatment, and climate solutions. On-command drug delivery and photothermal therapy are promising areas of research, showing promising results in animal trials.
Researchers developed a new nanoparticle drug formulation targeting specific receptors on cancer cells, dispersing chemotherapy drug paclitaxel evenly throughout tumors. The study found the 'DART' nanoparticles significantly increased median overall survival compared to Abraxane treatment in animal studies.
Researchers have successfully used copper-based nanomaterials to eliminate tumour cells in mice, combining with immunotherapy for long-lasting immune effects. The breakthrough offers a novel approach to treating lung and colon cancers without the use of chemotherapy.
Researchers develop biodegradable nanoparticles that target and kill pediatric brain tumor cells in mice, surviving 20-63% longer than untreated mice. The treatment uses a combination of the suicide gene and ganciclovir, showing promise for new therapies targeting these deadly brain malignancies.
Researchers at OIST developed a light-based device that detects biological substances in materials, surpassing current industry-standard biosensors' sensitivity and precision. The tool creates high-resolution images of individual nanoparticles, paving the way for studying molecular events on the surface.
Researchers developed a novel nanoparticle vaccine that combines M2e and NA proteins, providing strong cross-protection against six different influenza virus strains. The vaccine offers potential as a universal flu vaccine or component of such vaccines.
A new study by NIMS researchers reveals that a Si anode composed of commercial Si nanoparticles in solid electrolytes exhibits excellent electrode performance, approaching that of film electrodes. This breakthrough enables low-cost and large-scale production of high-capacity anodes for all-solid-state Li batteries.
Researchers have found that alloy metal nanoparticles facilitate faster carbon nanotube growth by attracting more active metal atoms to the growth front. This leads to a larger carbon concentration and quicker addition of carbon atoms, preventing precursor accumulation around the nanoparticle.
Scientists have developed a method to synthesize carbon nanotubes (CNTs) with a selectivity of 90%, challenging existing theories. The new approach allows for the production of specific types of CNTs, such as (2n, n) CNTs, which are ideal for electronic applications.
Researchers at USC Viterbi's Department of Biomedical Engineering have developed a nanoparticle that lights up calcification, allowing for more effective detection of blocked arteries. This innovation has the potential to improve cardiovascular disease diagnosis and treatment by identifying unstable calcifications.
Researchers aim to overcome obstacles in brain tumor treatment by using focused ultrasound and temperature-sensitive nanoparticles. These strategies can provide unique opportunities to improve the delivery of nanoparticles into brain tumors.
Researchers introduce a new water purification method using magnetic nanoparticles coated with an ionic liquid, effectively removing organic, inorganic, and microbial contaminants. The nanoparticles can be easily removed with magnets, making them a promising starting point for decentralized water purification systems.
Researchers developed a new process using biodegradable chitosan nanoparticles to fabricate self-cleaning antireflective glass surfaces. The eco-friendly approach eliminates microplastic waste, a significant environmental concern.
Researchers have developed a method to precisely control the size and shape of nanoparticles, which could lead to more effective drug delivery systems. By modifying a base nanoparticle with a second polymer, scientists can create nanoparticles of specific dimensions.
New technologies have successfully established zeolite nanoparticle production methods, enabling size control and mass production. The 'bead-milling and recrystallizing method' produces nanoparticles < 100nm, while the 'particle growth method' generates larger particles from 150-300nm.
A new technique called ELeCt uses drug-loaded nanoparticles bound to circulating red blood cells to inhibit lung cancer metastasis with tenfold greater success than free-floating nanoparticles. The research has shown improved survival rates and reduced side effects in mice with lung cancer, making it a promising clinical treatment.
Researchers have gained insights into how nanoparticles can be used to identify invasive microbes and deliver targeted treatments, potentially preventing deadly diseases contracted on medical equipment. The study, conducted by Monash University researchers, found that nanoparticles bound to fungal cells but were non-toxic to them.
Researchers developed mass production technology for solid-solution alloy nanoparticles, which can be used as innovative catalysts for exhaust gas purification. The new technology achieved stable synthesis of 1nm-class nanoparticles at low temperatures, outperforming existing rhodium-based catalysts.
A new treatment approach for inflammatory diseases, including sepsis, stroke, rheumatoid arthritis, acute lung injury, and atherosclerosis, has been discovered using nanoparticles. The technology selectively kills 'rogue' white blood cells that drive exaggerated immune responses, while leaving beneficial cells unharmed.
Researchers at MIT have found that coating nanoparticles with right-handed molecules of the amino acid cysteine can improve their ability to avoid being destroyed by enzymes in the body. This approach also allows them to enter cancer cells more efficiently, making it a promising method for developing more effective drug carriers.
Researchers from SMART have discovered a new method called Molecular Probe Adsorption (MPA) that enables the exploration of nanoparticle surfaces without damaging them. This breakthrough technique is substantially faster and cheaper than existing chemical methods, allowing for universal characterization of nanoparticles with any geomet...
Scientists at Brookhaven National Laboratory have developed a new approach to artificial photosynthesis that improves the efficiency of capturing light and splitting water molecules to produce hydrogen fuel. The system uses molecular tethers to attach chromophores to catalysts, allowing for stable and efficient electron transfer and ge...
Researchers have found a way to produce corundum nanoparticles using simple mechanochemistry in a ball mill, which could lead to more robust and easier-to-manufacture automotive catalysts and ceramics. The production method involves grinding lumps of boehmite in a ball mill for 3 hours and then heating them briefly.
Northwestern University chemists create molecules with specific chemical products and arrangements of atoms, suitable for drug development. The catalyst can be reused for additional reactions, producing high yields.
Researchers developed nanoparticles that emit different colors of light to trigger specific biological processes. They successfully controlled the beating rate in modified heart-muscle cells using red and green light, demonstrating a new level of control over biological processes.
Researchers from University of Illinois at Urbana-Champaign and Northwestern University have developed techniques to observe and simulate the self-assembly of crystalline materials at a higher resolution. They pinpointed individual motions of tiny nanoscale particles as they orient themselves into crystal lattices, confirming that synt...
Scientists developed a simple method for producing nanometer-sized corundum with high porosity at room temperature. The process involves milling a powder in a ball mill for a few hours, resulting in thermodynamically stable nanoparticles. This breakthrough reduces energy and costs associated with traditional production methods.
Researchers develop copper telluride nanoparticles that mimic enzymes, inducing oxidative stress and triggering inflammatory processes in tumor cells. This triggers an immune response, allowing the body to defend against metastasis and relapses.
Researchers at NTNU have created magnetic supercrystals that assemble themselves into strong shapes, increasing cohesive energy by up to 45% due to magnetism. This discovery opens up new possibilities for controlling the mechanical properties of these structures, which could be used in various applications.