Articles tagged with Nanoparticles
Researchers have created a new measurement method to determine the electrochemical activity of individual noble-metal-free nanoparticle catalysts. This breakthrough could lead to more efficient hydrogen production through water electrolysis by using affordable alternatives to precious metal catalysts.
The Reinhart Koselleck Project aims to study the growth of atmospheric nanoparticles using high-resolution mass spectrometry. The team hopes to understand the mechanisms of particle formation and differentiate between natural and human-induced causes.
A team of researchers has fabricated silver nanoparticles that can rapidly change color in response to moisture, enabling fast and reversible switching of plasmonic color in solids. This technology holds promise for applications in product authentication, information encryption, and sensing.
A new technique uses nanoparticles to measure how quickly they move through mucus samples, correlating with COPD severity. The study's findings suggest that the structure of mucus in patients with severe COPD may be distinct and affect particle movement.
MIT researchers have developed a delivery system that makes RNA vaccines more powerful, triggering efficient protein production and boosting immune response. The nanoparticles also activate an immune signaling pathway, provoking T cells to attack cancer cells and infectious agents.
A German-Australian team of researchers has successfully converted carbon dioxide into ethanol and propanol using metallic nanoparticles, also known as nanozymes. This breakthrough is based on the principle of enzyme cascade reactions, where complex molecules are produced from comparatively simple raw materials.
Researchers developed a universal computer model for metal nanoparticle adsorption, accounting for structural characteristics, metal composition, and adsorbates. The model enables predicting adsorption trends on novel nanoparticles, accelerating nanomaterials design.
Scientists at Ohio State University have developed a tool to measure protein behavior at slower speeds than previously possible, allowing researchers to ask deeper questions about protein function and behavior. The discovery could lead to a better understanding of how proteins regulate cellular processes and interact with other molecules.
Scientists from Ural Federal University and Bangladesh University of Engineering and Technology developed a green synthesis method for iron oxide nanoparticles using Ipomoea aquatica extract. The resulting nanoparticles exhibit superparamagnetic nature, antibacterial activity, and potential applications in biomedicine.
Researchers at Northwestern University have developed a method to create highly active catalysts from precious metal nanoparticles, improving fuel cells' efficiency. The new catalysts can also be recycled from spent catalysts, reducing waste and increasing their lifespan.
Scientists from Tomsk Polytechnic University have developed a concept for an 'optical vacuum cleaner' that can manipulate and capture nanoparticles using optical properties. This technology has the potential to improve air purification in lab-on-a-chip operations and clean rooms.
Researchers used neutron scattering to analyze battery electrode reactions and found that lithium sulphide forms on the outer surface of carbon fibres, not within microporous electrodes. This insight could improve battery development with higher energy density and longer lifespan.
Researchers have made a breakthrough in cancer treatment using nanoparticles that can be activated by radiation, resulting in statistically significant reductions in tumor size. This innovative approach builds on previous research and has the potential to effectively treat tumors throughout the body.
A novel targeting strategy using a click reaction-assisted immune cell targeting (CRAIT) method enables deep tumor penetration of drug-loaded nanoparticles. This approach has shown promising results in reducing tumor burden in aggressive breast cancer models, offering new hope for cancer treatment.
Researchers used microchips to test titanium dioxide, a common sunscreen ingredient, which is found nontoxic but offers protection against UV damage to skin cells. Microfluidic devices simplify nanoparticle analysis, reducing cost and time.
Researchers have developed nanoparticles that can convert near-infrared light into visible light, allowing mice to see in the dark. The technology aims to improve safety and sensitivity for human use and has potential medical applications.
Researchers studied nanoparticle uptake in human stem cells and found minor effects on gene expression. The nanoparticles were encapsulated in lysosomes, ensuring their storage and preventing cell damage.
The study models a system using light to generate an electromagnetic field, polarizing neutral nanoparticles made of insulating materials. The technique has the potential to provide thrust for tiny spacecraft without an electrical power supply.
Researchers developed a CRISPR-responsive hydrogel system that can be programmed to release compounds, nanoparticles, or live cells in response to specific DNA targets. The system's sensitivity and versatility make it suitable for various biomedical applications, including tissue engineering, bio-electronics, and biosensing.
Researchers at NUST MISIS have identified a mechanism for removing magnetic nanoparticles through the kidneys, allowing for safer drug delivery. The study used a combination of techniques to track nanoparticle transport, revealing that they can be excreted directly into the renal tubule, reducing the risk of liver accumulation.
Researchers developed a calcium-based conservation treatment that enhances hydrophobicity, reduces cracking and improves surface adhesion on various building materials. The treatment, inspired by natural structures like bone and kidney stones, provides improved acid resistance and minimal color effect.
Researchers at Waseda University developed a new nanoparticle combination therapy that effectively resuscitates trauma patients with massive hemorrhage. The therapy, using nanoparticles with hemostatic and oxygen-carrying potential, shows comparable results to conventional transfusion.
Researchers have created a new material that is both liquid and magnetic, allowing for the creation of printable liquid devices with potential applications in artificial cells and flexible electronics. The droplets can change shape to adapt to their surroundings and are preserved even when divided into smaller droplets.
A novel lipid nanoparticle delivery system has been developed to deliver CRISPR/Cas9 gene editing tools into liver cells with up to 90% efficiency. This improvement has the potential to overcome technical hurdles for clinical applications, including treatment of hyperlipidemia and various diseases.
Scientists developed a tumor-activatable antibody nanoparticle to overcome immunological tolerance in tumors. The nanoparticle releases PD-L1, triggering tumor antigen release and CTL infiltration, leading to efficient antitumor immunity and long-term immune memory effects.
Scientists have developed a novel nanoparticle formulation targeting PD-L1 with high specificity, allowing for improved infiltration of T cells into tumors and increased sensitivity to checkpoint blockade. This approach achieved an 80% mouse survival rate over 70 days, outperforming traditional antibody therapies.
The approach demonstrated in mice enhances healing by reprogramming aggressive immune cells to work for the body, reducing inflammation and promoting regeneration. This technology could lead to new therapeutic strategies for patients with spinal cord injury and inflammatory diseases.
A new nanotheranostic system uses silica-coated bismuth-ferrite harmonic nanoparticles to combine diagnostic imaging with targeted drug delivery, overcoming limitations of previous approaches. The system allows for medically safe release of therapeutics upon near-infrared light activation.
Researchers used nanoparticles to intercept immune cells in mice with spinal cord injuries, reprogramming them before they reached the injured site. This led to reduced inflammation, scarring, and a more regenerative healing environment.
Researchers developed molecularly imprinted nanoparticles that selectively bind to HER2 receptors, inhibiting tumor cell multiplication and growth. The particles were produced using a special method and demonstrated significant efficacy in reducing tumor growth in vitro and in mice.
Researchers at TUM have developed platinum nanoparticles that double the performance of current fuel cells. The particles are about one nanometer big and contain approximately 40 platinum atoms, resulting in high mass activity. This breakthrough could lead to widespread adoption of fuel cells in electric cars.
Researchers at Oregon State University have developed an improved technique for using magnetic nanoclusters to kill hard-to-reach tumors. The nanoclusters, which can reach temperatures in excess of 100 degrees Fahrenheit, were found to be effective in treating ovarian cancer and other types of cancer.
Researchers have discovered that tungsten trioxide can replace barium in X-ray exams and cancer treatments, offering a more effective and safer alternative. The compound's high absorptive capacity makes it suitable for creating a new class of contrast agents.
Researchers have created a new chemoradiotherapy formulation that could reduce side effects in advanced stage head and neck cancer patients. The formulation, which stays within tumors, is predicted to be effective while minimizing harm to healthy cells.
Researchers used DNP-NMR to elucidate the atomic-scale location and distribution of functional groups on MSN surfaces, disproving existing notions of synthetic strategies. This breakthrough provides mechanistic insight for guiding MSN synthesis in a more controlled way.
Scientists have identified a rare genetic mutation causing a fatal respiratory disorder that affects newborns. Using CRISPR/Cas9 gene editing technology, researchers developed a mouse model of the disease and discovered a critical link between FOXF1 mutations and STAT3 deficiency.
Researchers at Brigham and Women's Hospital have developed a test for early detection of diseases, including different types of cancer, using sensory nanoparticles. The test can identify unique
Researchers from IKBFU have developed high-quality α-Fe magnetic nanoparticles using an alternative method of electric explosion, which exhibit a high value of magnetization saturation. The obtained nanoparticles show increased chemical stability and biocompatibility, making them suitable for applications in sensing and biomedicine.
Researchers at the University of Helsinki and OIST have developed a novel method to create hybrid Au/Fe nanoparticles with unprecedented complexity. This breakthrough enables precise control over shape, size, and elemental composition, opening up new avenues for emerging applications.
Researchers from the University of Konstanz's CRC 1214 create single-chain, uniform-shape monodisperse nanocrystals with high particle number densities. This breakthrough enables the creation of polymer materials based on nanoparticle assembly.
The scattering spectrum of individual nanoparticles on daguerreotype surfaces exhibits a narrow blue/UV peak and broader red peak, resulting in a blue tone when viewed from above. The tone shifts to brown/red as the viewing angle increases due to changes in nanoparticle morphology and size.
Researchers at NIST developed a method to measure magnetic properties of nanoparticles by rapidly enlarging magnetic bubbles, revealing the orientation of individual nanoparticle poles. This technique enables fast and economical measurement of magnetic stability for various medical and environmental applications.
Colorado State University chemists developed a new design for eco-friendly smart glass that works faster and lasts longer. By optimizing nanoparticle spacing, the tinting behavior can be improved, leading to enhanced performance in applications such as windows, batteries, and sensors.
Scientists at Lobachevsky University and their Japanese colleagues tested the hypothesis of multi-photon photoemission by studying the behavior of gold nanorods under ultrafast laser excitation. The results contradict previous theories, instead supporting the tunnel emission mechanism as the primary process.
Researchers at Osaka University created a new process for producing palladium nanoparticles that enhance hydrogen sensing sensitivity. The new method uses piezoelectric resonance to optimize deposition time, leading to devices that may be vital to the transition to a hydrogen energy ecosystem.
Researchers discovered a plant virus capable of delivering pesticide molecules deep into the soil, targeting pests like nematodes. The breakthrough could help farmers reduce pesticide use and minimize environmental harm.
Researchers found that cube-shaped nanoparticles coated with single-stranded DNA chains assemble into an unusual 'zigzag' arrangement that maximizes attraction and minimizes repulsion. The discovery breaks the orientational symmetry of cubes relative to the vectors of the unit cell, allowing for a new type of nanoscale packing.
A new study found that titanium dioxide nanoparticles, used in over 900 food products, can affect the gut microbiota and potentially trigger diseases like inflammatory bowel diseases and colorectal cancer. The research suggests that better regulation of E171 consumption is needed to ensure safe use.
Researchers at Ruhr-Universität Bochum have discovered a new class of high entropy alloys suitable for electrocatalytic applications. These materials show potential in reducing energy losses and improving activity comparable to platinum catalysts in oxygen reduction reactions.
Scientists at Ruhr-University Bochum created a new approach to observe nanoparticles before, during and after electrochemical reactions. The method allowed them to monitor the structure and composition changes of individual particles throughout their entire lifecycle.
A researcher at Oregon State University has received a five-year, $3.3 million grant to develop a way for cystic fibrosis patients to get molecular treatment via an inhaler. The treatment would work on every patient, regardless of their genetic mutation, and could vastly improve existing therapeutic methods.
Researchers successfully synthesized nanotwinned cubic boron nitride (nt-cBN) and nanotwinned diamond (nt-diamond) using onion-like boron nitride (oBN) precursors. The size change of oBN precursor results in distinct microstructures, leading to significant alteration of microstructure and performance in the produced materials.
MIT engineers designed tiny robots that use magnetic fields to push nanoparticles out of blood vessels and into tumors, improving drug delivery efficiency. The robots create fluid currents that drag nanoparticles along, overcoming one major obstacle to targeted nanoparticle delivery.
A team of engineers, dentists, and biologists from the University of Pennsylvania developed microscopic robotic cleaning crews that can precisely and non-invasively remove dental plaque. The robots use catalytic activity to kill bacteria and break down biofilms, offering a potential solution for biofilm-related infections.
Researchers developed precision-guided anticancer nanoparticles that effectively target peritoneal cancer cells, reducing side effects. The use of guiding molecules improves drug solubility, selectivity, and release in tumor cells.
Researchers from Chalmers University of Technology have created the world's fastest hydrogen sensor, capable of detecting extremely small amounts of hydrogen in the air in under a second. The sensor works by using an optical phenomenon called plasmon, which changes color when hydrogen levels change.
Researchers developed melanin-loaded cell membrane derived nanoparticles that improved tumor imaging and slowed tumor growth in an animal model. The nanoparticles also triggered an immune response against the tumor, making them a potential option for theranostics.
New research shows that magnetic hyperthermia therapy is tunable depending on nanoparticle diameter and material composition. The study demonstrates increased tumour absorption rates as particle diameter increases, offering new avenues for targeted cancer treatment.
Researchers tracked platinum and tin atom movement during iNPs synthesis, discovering intermediate phases with unique catalytic properties. This discovery enables control over material synthesis and potential applications in energy-efficient fuel conversion and biofuel production.
Researchers at Tohoku University have developed a technique to transform copper into a material that mimics properties of gold and silver. The new medium, made of copper nanoparticles, has applications in the production of electronic devices and is suitable for environmentally friendly printing technologies.