Articles tagged with Nanoparticles
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.
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.
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.
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 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 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 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.
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.
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 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.
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 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.
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.
Adding an impurity to a two-dimensional lattice structure can create defects that settle into harmony, restoring order and creating a 'screen' to protect the rest of the material. This finding could lead to new ways of engineering materials with unique properties.
Researchers at Lund University have developed a technique using magnetically controlled nanoparticles to selectively kill cancer cells while sparing healthy tissue. This method has the potential to revolutionize cancer treatment by reducing side effects associated with traditional therapies.
Scientists have discovered a new mechanism for using light to activate drug-delivering nanoparticles, providing precise control over the release of therapeutic substances. The method employs near-infrared light from a low-power laser to heat pockets of water within non-photo-responsive polymeric nanoparticles infused with drugs.
An international team of researchers found that a nanoparticle trapped with laser light temporarily violates the second law of thermodynamics, allowing it to release heat to hotter surroundings. This rare event occurs due to the non-equilibrium state created by cooling the nanoparticle below the surrounding gas temperature.
Scientists at Harvard T.H. Chan School of Public Health have discovered a technique to accurately determine the amount of nanomaterials interacting with cells and tissues. The Volumetric Centrifugation Method (VCM) enables hazard rankings of engineered nanoparticles, enabling risk assessors to perform accurate assessments.
Researchers at Århus University used X-ray light to track the growth of tungsten oxide nanoparticles, which can be tailored for smart windows and solar cells. The study shows that nanoparticles form from octahedra units in solution and develop a predominantly ordered crystal structure as they grow.
Researchers from North Carolina State University have successfully grown vertically aligned carbon nanofibers using ambient air without toxic ammonia. This breakthrough enables the mass production of these nanofibers, which hold promise for various applications, including gene delivery tools, sensors, and batteries.
A new type of single-dose vaccine that doesn't require refrigeration is being developed to combat emerging and re-emerging diseases in remote areas. The 'nanovaccine' can be stored at room temperature for up to six months and works by triggering both humoral and cell-mediated immune responses.
Researchers embedded carbon nanotubes into chloroplasts to capture light energy by 30 percent. Plants were also modified to detect nitric oxide, a common environmental pollutant. This represents the first steps in launching plant nanobionics, a field that could turn plants into self-powered devices.
A University of Cincinnati-led team studied four distinct magnetized nanoparticle systems to determine which one works best in delivering heat directly to cancer cells. The research found that uncoated iron-oxide nanoparticles and those coated with polyacrylic acid heated quickly to temperatures sufficient to kill breast cancer cells.
University of Michigan researchers have created 'living' rotating crystals by making nanoparticles spin, which could shed light on the origin of life. The self-organizing behavior of the particles forms phase separation without direct attraction.
A Rice University lab has invented a tabletop device to evaluate the efficiency of oil and gas wells by analyzing nanoparticle movement. The device simulates the long path nanoparticles travel through deep rock formations, providing valuable information for producers.
Scientists at Princeton University have created a 3D video of a virus-like particle attempting to enter a cell, revealing unprecedented details about the interaction. The technique developed could help deliver drugs via nanoparticles and prevent viral infections.
Scientists created nanoparticles that selectively bind to abnormal immune cells causing inflammation, allowing anti-inflammatory drugs to reach them while leaving healthy ones untouched. This targeted approach shows promise for treating inflammatory diseases with fewer side effects.
Researchers aim to develop nanoparticles that target prostate cancer cells with a genotoxin drug. The nanoparticles will also promote healing in damaged blood vessels by mimicking platelets and catching circulating endothelial progenitor cells.
Researchers at Clemson University have developed sticky nanoparticles that can deliver drugs targeting damaged arteries, providing a new method to fight heart disease. The nanoparticles, coated with a sticky protein, latch onto damaged arteries and release drugs in slow fashion, reducing the need for surgical interventions.
A new design inspired by a pomegranate overcomes obstacles to using silicon anodes in lithium-ion batteries, allowing for increased storage capacity. The pomegranate-inspired electrode operates at 97% capacity after 1,000 cycles of charging and discharging.
Scientists at WashU Medicine have developed a new approach to treating muscular dystrophy, using nanoparticles loaded with rapamycin to improve recycling of cellular waste. The treatment showed significant improvements in skeletal muscle strength and cardiac function in mice with Duchenne muscular dystrophy.
Scientists at the University of Freiburg have discovered a new paradigm for targeting specific cell types using nanoparticles. They developed particles that can recognize endothelial cells through biophysical principles, allowing for precise delivery to cancer cells without changing biological addresses. This breakthrough has significa...