Articles tagged with Nanoparticles
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Researchers at TU Graz have developed a method for assembling nanomaterials as desired using helium-droplet synthesis. The resulting nanoparticles have improved catalytic properties and are suitable for sensor technologies, such as laser and magnetic sensors.
A team of scientists introduces a 'meta-grid' of nanoparticles that significantly enhances the light output of LEDs while reducing energy consumption. By reducing Fresnel reflection loss, the 'meta-grid' increases the lifetime of LED chips by eliminating unwanted heat.
Scientists at Tokyo Tech develop a novel method to measure local temperature of platinum nanoparticles in catalysts using X-ray absorption fine structure (XAFS) spectroscopy. This approach demonstrates that microwave heating selectively heats the metal nanoparticles, increasing reaction rates and reducing temperatures.
Scientists have created a technique for precise nanoparticle trapping using metamaterials, overcoming size restrictions and enabling long-term stability. This breakthrough has far-reaching potential for biomedical science applications, including cancer research and imaging.
The University of Pittsburgh's CANELa lab is advancing nanoparticle research by modeling metal nanoclusters with exact structures, allowing for accurate theory and investigation of their properties. This breakthrough enables the creation of active sites for catalysis, a key focus of the lab.
Physicists at the University of Bath have accurately measured and characterised a single, twisted nanoparticle using a new method, taking them closer to producing medicines on demand. The discovery could lead to mini-labs that can mix substances in a completely new way, producing pharmaceuticals from minute droplets of active ingredients.
Researchers developed a system to monitor pneumonia and genetic diseases by analyzing breath exhaled by patients, revealing a new potential diagnostic tool. The technology uses specialized nanoparticles that release gases when proteases in the body cleave them, allowing for rapid detection of lung health.
Researchers developed a breakthrough technology to resolve the problem of nanoparticles being cleared from the bloodstream too quickly. By exploiting the body's natural process of eliminating old red blood cells, they found an elegant solution that prolongs blood circulation for virtually any nanomedicine.
Researchers at Rutgers University have created ultra-small nanoparticles that exhibit unusual blinking behavior, which could help produce methane and other fuels. The crystals, composed of titanium dioxide, stay charged for tens of seconds, enabling potential applications in environmental cleanups, sensors, and electronic devices.
Researchers at Lund University developed a novel surgical technique combining with smart nanoparticles to target lung tumors. The approach has shown promise in animal models, allowing for selective tumor targeting and reduced side effects.
The BIO Integration Virtual Conference Series July 2020 examines the intersection of nanomedicine, biology, and technology. Key topics include the integration of naturally occurring bioactive compounds into nanomedicine and nanoparticles meditated LncRNA silencing for effective cancer radiotherapy.
Researchers from ITMO University have improved the technique for processing composites based on nanoporous glass with silver and copper, allowing for precise prediction of optical properties. The suggested method enables the creation of unique optical plasmonic components at a lower cost and with increased ease.
A new vaccine platform technology called Erythrocyte-Driven Immune Targeting (EDIT) successfully slowed the growth of cancerous tumors in mice by delivering antigens to antigen-presenting cells in the spleen. The approach uses red blood cells as delivery vehicles, generating an immune response without the need for adjuvants.
A new nanoconjugate has been developed to target and kill acute myeloid leukemia tumor cells without harming healthy ones. The nanoparticle is specifically designed to bind to the CXCR4 receptor, which is overexpressed in leukemic cells, and deliver a potent toxin that kills the cancer cells.
Researchers developed nanoparticles that can deliver a localized cancer treatment by inhibiting tumor growth in mice. The nanoparticles use a specific chemistry to attach a microRNA that prevents cancer cells from producing proteins, leading to cell death.
Researchers successfully deliver gene therapy using nanoparticles to inhibit abnormal blood vessel growth in rats and mice eyes, providing evidence for treating wet age-related macular degeneration and inherited retinal diseases.
A new study confirms that toxic metallic air pollution nanoparticles are getting inside the crucial energy-producing structures within the hearts of people living in polluted cities, causing cardiac stress. The researchers found iron-rich nanoparticles inside the damaged heart cells of a 26-year-old and even a three-year-old toddler.
A new study investigates the impact of plastic nanoparticles on human development, finding links to eye development, cardiac malformations, and ischemia. The research highlights the need for urgent action to create regulatory measures to lessen NPs' impact on human health.
A team of scientists has found a way to generate the gas at precisely targeted locations inside the body, potentially opening new lines of research on nitric oxide's effects. The method uses an electric voltage to drive the reaction that produces nitric oxide.
Researchers at IIT have developed a revolutionary liquid retina prosthesis using nano-technology to replace damaged photoreceptors in the retina. The study demonstrates high spatial resolution and effectiveness, paving the way for future clinical trials.
Researchers from Immanuel Kant Baltic Federal University discovered how nanoparticles, particularly iron oxide nanocubes and nanoclusters, can selectively target and activate specific genes in liver cancer cells, leading to apoptosis and autophagy. This breakthrough could lead to personalized cancer therapy and diagnostic tools.
Researchers at UMass Amherst find TiO2 nanoparticles alter gut microbiota, causing inflammation and changes in liver protein expression. The study suggests long-term exposure to foodborne TiO2 NPs may have adverse health effects, particularly in obese mice.
Scientists designed a functional ternary Pt/Re/SnO2/C catalyst, which exhibits more than ten times higher activity in the ethanol oxidation reaction compared to commercial platinum catalysts. The new catalyst features improved stability and is suitable for use as an anode material in direct ethanol fuel cells.
Researchers at SLAC and Stanford discovered that water exposure can round particles, opening up active sites in palladium-platinum nanoparticles. Larger particles are more active due to their shape change during reactions.
A novel treatment combining FGF1 and CHIR99021 significantly reduced the size of dead heart tissue and improved left ventricle function in animal models. The treatment also promoted cell growth, angiogenesis, and prevented apoptosis, offering a potential breakthrough in cardiovascular sciences.
A study compares the effective magnetic moments of different multicore nanoparticle systems, showing they are magnetic-field dependent. The findings are important for optimizing magnetic nanoparticles for various applications, including magnetic hyperthermia and targeted drug delivery.
A new study from the University of Pittsburgh and Politecnico di Milano advances computational catalysis by simulating realistic catalysts under reaction conditions. The researchers developed a method to model catalyst morphology and catalytic activity under reaction conditions, enabling the prediction of unpredictable reactions.
Rice University scientists developed an easy and affordable tool to count and characterize nanoparticles using the open-source SEMseg program. The tool simplifies nanoparticle analysis by extracting pixel-level data from low-contrast SEM images and recombining it into sharp images.
Advances in nanoparticles as anticancer drug delivery vectors offer improved targeting efficiency and non-toxicity. The use of external and internal stimulating factors enhances the efficacy of nanopolymer-based platforms, making them ideal for personalized medicine.
Researchers develop nanoparticle-sized semiconductor laser generating coherent green light at room temperature, overcoming a significant technological hurdle. The tiny laser operates efficiently without external pressure or low temperatures.
Researchers from the ARC Centre of Excellence in Exciton Science have developed a highly efficient and controllable method to assemble single nanoparticles directly into pre-patterned templates using electrophoretic deposition. The technique has been applied to various materials, including gold nanocrystals, semiconductor quantum dots,...
Researchers replaced R134a with energy-efficient R600a and added MWCNT nanoparticles, reducing electricity use by a quarter. The new mix improved cooling capacity and reduced evaporation temperature, making home refrigeration more accessible for low-income households.
Researchers found a Hopfion structure, a repeating pattern present throughout nature, in ferroelectric nanoparticles. This discovery highlights the interconnectedness of scientific fields and could lead to breakthroughs in energy storage devices and information systems.
Researchers created a fast, precise and scalable method for individual nano- and submicron scale manipulation in acoustic fields using megahertz frequencies. The technology isolates submicron particles, enabling sorting, patterning and size-selective capture of nanoscale objects.
Researchers at Aalto University have developed a method to create materials from particles using nanocellulose as a universal binder. The study reveals the ability of nanocelluloses to induce high cohesion in particulate materials, overcoming particle dependency and enabling the creation of materials with predictable properties.
Scientists successfully produced a photoanode with extremely high conductivity by annealing hematite mesocrystals to a transparent electrode substrate. This enabled the separation of electrons and holes quickly, promoting the oxidation reaction and achieving the world's highest solar water-splitting performance.
Researchers found that composite membranes with nanoparticles can increase proton conductivity in direct ethanol fuel cells, leading to higher efficiency and potential industrial scalability. This breakthrough has great implications for the use of renewable ethanol as a sustainable energy source.
A new nanoparticle-based technique allows researchers to capture mechanical properties of living cells in real-time, revealing key findings on how cancer cells stiffen as they form tumors. This breakthrough has promising applications in disease diagnosis and treatment.
Researchers at the University of Maryland have developed a novel method to mix immiscible metals at the nanoscale, creating a range of bimetallic materials. This breakthrough enables the rapid synthesis of copper-based alloys with uniform structure and morphology.
Researchers developed a new type of liposome called a sterosome, which successfully activated bone regeneration on its own in mice with bone defects. The sterosomes were found to stimulate cells to develop into bone-forming cells and reduced defect size by an average of 50% in a six-week study.
Researchers at LMU synthesized nanoparticles that rapidly release ionized iron within cells, triggering pyroptosis and potentially eliminating malignant tumors. The nanoparticles' structure and coating enable controlled release of iron ions in acidic environments, making them a promising therapeutic agent for cancer treatment.
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 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 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.
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.
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.
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.