Articles tagged with Nanoparticles
Poorly executed nanosafety experiments have led to a lack of new knowledge, with most projects being irreproducible due to inadequate particle characterization. The 'NanoScreen' programme aims to address this issue by providing pre-validated methods for lab experiments using standardized test materials.
The study demonstrates that thermosponge nanoparticles can effectively deliver a variety of proteins while preserving their biological activity. The new platform is designed to eliminate the need for harsh solvents and shows promise for delivering protein-based drugs for human therapeutics.
Scientists developed a deeper understanding of ideal mesoporous nanoparticle design to maximize catalytic output. They modeled molecular movement within narrow channels and found that the optimal channel diameter balances pore size with reactant and product passage.
A novel strategy combining nanoparticle technology with FDA-approved photodynamic therapy has been developed to effectively kill deep-set cancer cells in vivo. The treatment uses low-power, deep-tissue-penetrating light to activate the cancer-killing drug, showing improved destruction of tumors with minimal damage to surrounding tissue.
Researchers found that metal nanoparticles appear to be liquid droplets on the outside but maintain a stable crystal configuration within. This phenomenon, known as Coble pseudoelasticity, could impact nanotechnology applications.
Researchers at Wyss Institute have developed a method to form tiny 3D metal nanoparticles in prescribed shapes using DNA as a construction mold. The breakthrough has the potential to advance laser technology, microscopy, solar cells and more.
Researchers at MIT have achieved a long-sought goal of creating particles that can emit a colorful fluorescent glow and be precisely manipulated into position within living cells using magnetic fields. The new technology could enable tracking the position of nanoparticles as they move within the body or inside a cell, and manipulate th...
Researchers at the University of Waterloo developed nanoparticle eye drops that can treat dry eye syndrome with just one weekly application. The drops deliver a precise amount of medication over five days, reducing irritation and excessive use of traditional eye drops.
A Duke University team found that nanoparticles called single-walled carbon nanotubes accumulate rapidly in wetland sediments, potentially harming aquatic food chains. The accumulation of these nanoparticles in sediment poses concerns for both sediment-dwelling organisms and animals that eat them.
A Swiss research team has revealed that nanoparticles are attracted to fingermarks through chemical bonding, rather than electrostatically. This discovery could lead to more accurate and sensitive techniques for detecting previously undetectable fingermarks, improving forensic science.
Researchers developed stealthy nanoparticles that successfully deliver cancer vaccines to a subset of macrophages deep inside lymph nodes, hindering tumor growth. The nanoparticles bypass circulating immune cells and enter the lymph nodes' core, where they are engulfed by special kind of macrophage.
The study compares the interactions between silver nanoparticles and two thiols, mercaptohexanol (MH) and cysteine. MH forms a sparingly soluble silver(I) thiolate complex AgSRm on the surface, while cysteine replaces the citrate capping agent to form cysteine capped nanoparticles.
A University of Texas at Arlington research team has developed a new method to fabricate transparent nanoscintillators that could advance medical safety and homeland security. The resulting scintillator material has better energy resolution than currently used materials, making it more effective for radiation detection.
A team of University of Pennsylvania researchers developed a technique to measure the electrical properties of nanoscale structures by passing them through tiny pores. By analyzing changes in ionic current, they found new ways to apply nanopore translocation to analyze objects at the smallest scale.
Researchers have discovered a crucial role of electronic and geometric effects in reducing carbon dioxide using gold-copper bimetallic nanoparticles. This breakthrough could lead to unprecedented improvements in electrochemical carbon dioxide reduction.
Researchers developed a T-MOC device to study tumor-microenvironment interactions, enabling the testing of nanoparticles and drugs targeting cancer. The chip can mimic human tumors, providing insights into targeted delivery methods.
A comprehensive look at lithium ion battery electrodes reveals that rapid-charging and high-power discharging may not damage the electrode as much as previously thought. The research suggests modifying electrodes or changing charging processes could promote uniform charging and discharging, extending battery life.
In a breakthrough study published in Nature Communications, Cedars-Sinai researchers successfully targeted stem cells to injured heart muscle using antibody-studded iron nanoparticles. This innovative approach enables precise localization of the body's own stem cells to the site of injury, promoting regeneration and repair.
Researchers have found that magnetite nanocubes can form chiral helices when exposed to an external magnetic field. The helices are formed through a balance of competing forces, including the Zeeman force and dipole-dipole magnetic force.
A new synthesis method enables the creation of nanostructures that efficiently split water into hydrogen fuel using sunlight. The approach allows for the design and construction of higher-order nanostructures with specific symmetries or shapes, enabling potential applications in quantum computing, sensors, and clean energy.
Researchers at Washington University in St. Louis developed a new sensor that can detect and count nanoparticles as small as 10 nanometers, one at a time. The sensor uses Raman microlasing technology to achieve high sensitivity and biocompatibility.
Researchers develop new method to quantify and correlate biological aggregation effects on radiofrequency heating and MRI contrast of magnetic iron oxide nanoparticles. The study presents a platform for accounting for aggregation in clinical applications, such as cancer hyperthermia.
Researchers have developed dynamic nanoparticles that can be used as contrast agents for MRI and PET scans, deliver chemotherapy directly to tumors, and respond to light to destroy tumor cells. The particles are biocompatible, non-toxic, and can be easily made, making them a promising tool in cancer treatment.
Researchers at MIPT and RAS made a significant step towards creating medical nanorobots by enabling nanoparticles to produce logical calculations. The discovery paves the way for biomedical technologies, including selective binding to target cells and analyzing biological materials.
A new chip-based platform combines electrical and optical measurements to study single molecules and nanoparticles. The device allows for the discrimination of particles with different sizes and optical properties, enabling reliable counts of virus particles.
Scientists have devised a method to target venom proteins specifically to malignant cells while sparing healthy ones, reducing or eliminating side effects. The approach involves using tiny nanometer-sized particles to treat breast and melanoma cancer cells in the laboratory.
Weizmann Institute scientists have created twisted, rope-like structures from cube-shaped nanoparticles, demonstrating the power of self-assembly in nanomaterials. The findings reveal how competing forces like magnetism and van der Waals forces can align particles into complex shapes.
A new imaging agent has been developed for functional imaging of the intestine, potentially leading to better diagnosis and treatment of gut diseases. The agent uses a combination of photoacoustic imaging and positron emission tomography to provide high-definition images of the intestine in relation to the entire body.
Researchers at NIST have clocked nanorods spinning up to 150,000 revolutions per minute, 10 times faster than any other nanoscale object in liquid. This discovery has opened up potential uses for nanomotors in medical treatments and industrial processes.
Mathew M. Maye's research may lead to gas storage, heterogeneous catalysis, and rechargeable lithium-ion batteries applications. He is developing novel synthesis strategies for stainless nanoparticle alloys with controlled oxidation properties.
Scientists have designed a new self-assembling nanoparticle that targets tumours to improve MRI scanning's effectiveness and sensitivity. The particle increases the signal power and clarity of images, allowing doctors to detect cancerous cells earlier.
Researchers developed nanojuice to improve non-invasive gut imaging, providing real-time views of the small intestine. This technique may help diagnose irritable bowel syndrome, celiac disease, Crohn's disease, and other gastrointestinal illnesses.
Researchers have developed nanoparticles that increase survival rates and show no signs of interference in healing after blast trauma. The artificial platelets, called hemostatic nanoparticles, were found to be effective in stopping bleeding and increasing survival rates.
Researchers discovered that molybdenum trioxide nanoparticles can mimic the function of sulfite oxidase, an enzyme responsible for cellular detoxification processes. The nanoparticles can cross cell membranes and accumulate at mitochondria, recovering sulfite oxidase activity and potentially treating sulfite oxidase deficiency.
Researchers have developed a method to produce silver nanostructures using high-pressure diamond plates, outperforming traditional chemical methods. This approach enables the creation of flexible electronics, transparent electrodes, and new classes of chemically and mechanically stable nanostructures.
Scientists from Norway, France, and Poland develop a method to produce Janus capsules, which can transport drugs and lead to innovative materials. The capsules are created by merging two drops coated with different particles in an electric field, resulting in a hollow structure with two shells of varying properties.
Researchers at IBS developed polymer nanocapsules with metal nanoparticles, offering high stability, dispersibility and catalytic activity in water. This technology replaces toxic liquid solvents with environmentally preferable ones, enabling sustainable catalysis.
Researchers have created nanoparticles that can deliver and exchange complementary molecules inside cells. The nanocarriers, 15 nanometers in diameter, navigate through the membrane and sequenceally deliver their cargo, enabling exclusive interaction between internalized molecules.
Researchers at UT Arlington have developed a method using laser technology and magnetic carbon nanoparticles to deliver drugs and genes directly into cancer cells. The new photothermal delivery method has shown promise in lab experiments, offering an alternative to viruses for gene therapy and potentially treating genetic conditions, c...
Researchers tested the effects of commercial drinks containing nanoparticles on human intestinal cells, finding that they can interfere with digestion and potentially lead to poor digestion or diarrhea. The study suggests that nanomaterials from these products may be making their way into surface water, where they could harm aquatic life.
Scientists create ultra-small nanoparticles that can bind to cancer cells using camel antibody fragments, potentially revolutionizing tumor detection. The particles successfully evade the human immune system and reach diseased cells under conditions similar to those in patients' bodies.
Researchers created a single layer of nanoparticles on a liquid surface where properties can be easily switched. The DNA-coated nanoparticles' interactions and reorganization at the lipid interface affect their properties.
Researchers at Oregon State University have successfully produced high-quality nanoparticles using microwave-assisted heating in a continuous flow reactor. This technology has the potential to revolutionize electronics manufacturing by reducing costs and improving performance.
The Princeton Plasma Physics Laboratory has received funding to study the role of plasma in nanoparticle synthesis, a process used in various applications including energy technologies and pharmaceutical products. Key researchers will investigate complex interactions between hot plasma gas and material synthesis.
The researchers designed a nanoparticle with a peptide coating to target tumor cells, allowing for efficient drug delivery. The shell is etchable, enabling the removal of excess particles using biocompatible chemicals.
Researchers bridge the size gap to study kinetic behavior of Ag nanocatalysts using SERS, providing real-time reaction information. The stepped surface of etched nanoparticles mimics sub-5-nm environment, increasing active surface atoms' participation in catalysis.
Researchers used in situ TEM to study the evolution of platinum/cobalt nanoparticles during reactions in oxygen and hydrogen gases. They found that cobalt atoms migrate to form a cobalt oxide epitaxial film, which affects catalytic performance.
Berkeley Lab researchers found that hydroxyl groups from water bind to the surface of colloidal lead sulfide nanoparticles, explaining how they achieve balance of positive and negative ions. This discovery sheds light on the surface chemistry of nanocrystals and has implications for nanoparticle synthesis.
The researchers developed a promising hybrid nanoobject for efficient two-photon fluorescence probes using gold nanoshells. The nanoshell acts as an optical antenna, enhancing the fluorescence intensity and stability of fluorescent emitters.
Researchers at the University of Illinois have designed a new nanoparticle that combines weak chemical forces to improve MRI imaging. The innovation, inspired by cell membranes, has led to clearer images and paved the way for better diagnostic tools.
UH researchers found conclusive evidence of how silicalite-1 zeolites grow, involving nanoparticle attachment and molecular addition. This breakthrough technique allows for real-time observation of surface growth.
Scientists at Ames Laboratory have developed a nanoparticle that can perform two processing functions at once for green diesel production. Using iron as the catalyst reduces costs and improves efficiency, making it a promising alternative to traditional biodiesel production methods.
A team of nanoengineers at UC San Diego created a 3D-printed hydrogel matrix to house nanoparticles, mimicking the function of the liver in sensing and capturing toxins from the blood. The device successfully neutralized pore-forming toxins, offering a potential solution for removing dangerous toxins from the blood.
Researchers developed antimicrobial edible films using pullulan and essential oils, which significantly inhibit bacterial pathogens in meat and poultry. The films provide immediate and sustained kill of bacteria, reducing the risk of foodborne illness.
A £3 million project aims to develop nanoparticles for early detection and treatment of cardiovascular diseases. The researchers will use surface enhanced Raman scattering to quantify vascular inflammation and deliver drugs directly to diseased vessels.
Researchers found graphene oxide nanoparticles more stable in groundwater and unstable in surface waters. The material's mobility in water has significant implications for its potential environmental impact. The study highlights the need for further research on the stability and transport of these engineered nanomaterials.
Researchers developed a method to measure nanoparticle degradation in real time using Förster resonance energy transfer, enabling undistorted measurements without separating particles from their environment. This can inform the design of safer and more effective nanoparticles for various medical applications.
Rice University scientists have created a nanoscale detector that checks for and reports on the presence of hydrogen sulfide in crude oil and natural gas while they're still in the ground. The detection method is sensitive enough to detect low concentrations, making it an important tool for improving safety and efficiency in oil fields.
A team of researchers has developed a novel method for repairing soft-tissue organs and tissues using aqueous solutions of nanoparticles. In vivo experiments on rats showed that the method can close deep wounds rapidly without inflammation or necrosis, and successfully repair difficult-to-suture organs such as the liver.
A new nanoparticle called Cu-Cy has been discovered to slow tumor growth in lab studies when combined with X-ray exposure. The treatment shows promise as a more efficient and cost-effective alternative to existing photodynamic therapy methods.