Articles tagged with Nanoparticles
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.
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 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 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 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.