Articles tagged with Nanoparticles
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.
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.
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.
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 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.
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.
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 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...
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.
Researchers have developed nanoparticles that can efficiently silence target genes in the liver, showing promise for treating cancer and other diseases. The new particles, inspired by lipoproteins, achieve gene knockdown with a small amount of RNA, minimizing side effects in other tissues.
Researchers at Case Western Reserve University have developed a multifunctional nanoparticle that enables MRI to pinpoint blood vessel plaques caused by atherosclerosis. The technology is a step toward creating a non-invasive method of identifying vulnerable plaques in time for treatment.
A team of scientists designed a microchip coated with blood vessel cells to study nanoparticle accumulation in atherosclerotic arteries. The device demonstrated the ability to screen and optimize nanoparticles' design, correlating well with animal model results.
A new nanoparticle system will recruit stem cells to regenerate arterial walls, reducing complications and extending patient lives. Researchers have discovered a way to use nanoparticles to help arteries heal more effectively following surgical procedures.
A new approach to produce transparent projection screens has been developed by a MIT team, enabling wide viewing angle, scalability to large size, and low cost. The technology uses color-sensitive nanoparticles to create a material that lets most ambient light pass through while scattering specific colors for high-resolution images.
Researchers at Berkeley Lab created highly sensitive tactile sensors using composite films of carbon nanotubes and silver nanoparticles, 10 times more sensitive than previous pressure sensors. These e-whiskers can be integrated into various systems to enable robots to 'see' and 'feel' their surroundings.
Researchers at MIT have developed a new transparent display system that can project images onto glass while maintaining transparency, enabling wide-angle views. The system uses nanoparticles to scatter specific wavelengths of light, allowing for clear visibility through the display.
Researchers have built a system that converts the sun's energy into hydrogen fuel and stores it for later use, allowing for nighttime power. The 'solar fuels' system uses natural photosynthesis as inspiration and has the potential to be a major piece of the puzzle for a solar energy future.
Researchers create a system that can weigh particles as small as 0.85 attograms, opening up new possibilities for studying synthetic nanoparticles and biological components of cells. The device, known as a suspended microchannel resonator (SMR), uses a miniaturized sensor to measure the mass of particles flowing through a narrow channe...
Scientists have reproduced antiferromagnetic coupling between layers in nanoscopic materials, allowing for easy adjustment of properties without shape or composition manipulation. This discovery paves the way for miniaturization of magnetic storage and applications.
Scientists have developed a new type of molecular motor made of DNA that can transport nanoparticles along the length of a carbon nanotube. The motor uses energy from RNA molecules to fuel its movement, which is controllable and adaptable to changes in the local environment.
Researchers from the University of Houston have discovered a catalyst that can quickly generate hydrogen from water using sunlight, producing twice as much hydrogen as oxygen. The technology has potential as a clean and renewable source of energy, but its efficiency rate is still too low to be commercially viable at present.
A new study investigates the potential toxicity of nanoparticles on human immune cells, finding that eosinophils respond to nanoparticle contact. The research aims to establish standards for worker protection and regulation of nanoparticle use.
Researchers at Brigham and Women's Hospital have successfully developed nanoparticles that can be absorbed through the digestive tract, enabling targeted and convenient drug delivery. This breakthrough could one day allow patients to take a pill instead of receiving injections for conditions such as cancer and high cholesterol.
Researchers have developed nanoparticles that can be delivered orally and absorbed through the digestive tract, allowing patients to take a pill instead of receiving injections. The particles are coated with antibodies that act as a key to unlock receptors found on cells lining the intestine.
Scientists have created a new class of nano-mechanical oscillators that are ultra-sensitive to forces, including non-Newtonian gravity-like forces and quantum vacuum fluctuations. The system uses optically levitated nanoparticles in high vacuum conditions, overcoming the limitation of physical contact to a support.
A new technique uses nanoparticles and ultrasound to regulate blood sugar levels in diabetics, potentially eliminating the need for insulin injections. The method involves injecting biocompatible nanoparticles into the skin, which are then activated by a small ultrasound device to release insulin painlessly.
Kytai Nguyen, associate bioengineering professor at UT Arlington, has been elected as a fellow of the American Heart Association. Her research focuses on cellular engineering, tissue engineering, and stem cell therapies to develop new strategies for combating cardiovascular diseases.
Scientists at Oxford University have developed a technique using nanoparticles to investigate the mechanisms underlying 'mystery' cases of infertility. The method involves loading porous silica nanoparticle envelopes with compounds to identify or treat causes of infertility, demonstrating no detrimental effects on sperm function.
The Center for Environmental Implications of NanoTechnology (CEINT) at Duke University has been awarded a $15 million grant renewal to continue studying the environmental impact of nanoparticles. The research focuses on understanding where nanoparticles accumulate, how they interact with other chemicals, and their effects on ecosystems.
Researchers discovered that electrons in cerium dioxide nanoparticles behave like a cloud, distributing themselves over the entire nanoparticle. This finding challenges the traditional model of electron behavior and opens up new avenues for research on nanomaterials.
Research team develops co-assembly approach to create complex nanostructures with preprogrammed properties. The nanoparticles, resembling caterpillar larva, can be designed with specific functions and stimuli responsiveness.
Researchers used electron microscopy techniques to study metallic nanoparticles' reaction with environment, finding oxidation occurs much faster due to strain introduced by size. The discovery improves understanding of nanoparticles' applications in clean fuel technologies, data storage, and catalysis.
Case Western Reserve University researchers aim to develop processes that can be used by industry to manufacture Janus particles, which could carry paired medicines or provide unique optics for displays. The engineers focus on creating high-yield nanomanufacturing with simple processes.
The Nanotechnology Consumer Product Inventory has been restructured to improve its functionality and scientific credibility. The database now includes qualitative and quantitative descriptors for nanomaterials and their potential exposure routes, enabling better understanding of the risks associated with consumer products.
Researchers have discovered a way to kinetically trap liquids within each other, creating stable systems that can be tailored to specific shapes and flow characteristics. This breakthrough holds promise for applications such as drug delivery, fluidics, and energy storage.
Researchers at the UPV/EHU and Tecnalia have developed an innovative method using iron nanoparticles to degrade lindane, a toxic insecticide banned by farmers. The study confirms the high reactive capacity of iron nanoparticles to break down lindane, revealing reaction tendencies and speeds over time.
A new research project will develop the next generation of effective mucosal vaccines using immunomodulation and cell-targeted nanoparticles. This innovation aims to improve vaccine administration in resource-poor settings, reducing blood-borne contamination and pandemic spread risks.
Researchers discovered that mammalian cells prefer disc-shaped nanoparticles over rod-shaped ones under typical culture conditions. The study's findings could help design better therapies for various diseases by understanding how nanoparticle shape affects transport into cells.
Researchers have developed nanoparticles that can protect vaccines from being cleared by the lungs, allowing them to generate a strong immune response in both the lungs and distant mucosal surfaces. The technology has shown promise in preventing infections such as influenza and HIV, as well as delivering cancer vaccines.
Scientists at Brookhaven National Laboratory have created a high-performing nanocatalyst that transforms impure hydrogen into electricity, addressing challenges of carbon monoxide poisoning. The novel core-shell structure, combining ruthenium and platinum, exhibits perfect atomic ordering and superior performance parameters.
UCLA researchers have created a portable smartphone attachment that can detect single viruses, bacteria, and nanoparticles using a cellphone-based imaging platform. The device weighs less than half a pound and can be used for sensitive detection of sub-wavelength objects in field settings.
Using an airbrush, researchers can grow vertically aligned carbon nanofibers on several metal substrates, opening the door for incorporating these nanofibers into gene delivery devices, sensors, batteries and other technologies. The technique enables large-scale manufacturing processes, making it suitable for various applications.
Scientists present innovative approaches to reduce hazardous substances in production processes, using renewable materials and minimizing waste. The symposium features topics such as banana-peel powder removal of toxic metals from water and sustainable nanoparticle production.
Scientists at Queen Mary University of London discovered a novel nanoparticle with magnetic properties, revealing potential applications in battery technology and cancer therapies. The sea urchin-shaped nanoparticles consist of iron-filled nanotubes with unique properties that can be manipulated for various uses.
Researchers discover STING's critical role in treating autoimmune diseases by evoking expression of enzyme IDO, which blocks immune attack on healthy body constituents. Mice with STING deficiency had no response to DNA nanoparticles, highlighting the protein's essential role in recognizing the molecule that senses DNA.
Researchers aim to turn CO2 from fossil fuels back into a renewable energy source by capturing and processing the gas with catalysts. A symposium at the American Chemical Society meeting features studies on the activation of CO2 for catalytic transformation.
Scientists developed a solar steam technology that sterilizes medical and dental instruments, disinfects human waste, and purifies dirty water. The device uses sunlight to generate steam, eliminating the need for electricity or fuel.
Scientists at Xiamen University and the University of Jyväskylä have successfully synthesized stable metal nanoclusters containing 44 metal atoms. The unique electronic structure of these clusters enables peaked absorption in a wide region of ultraviolet and visible parts of the electromagnetic spectrum. This breakthrough has significa...
The discovery enables rapid localization and measurement of cells within living environments at the nanoscale, such as changes to a single cell in response to chemical signals. The ultra-sensitive nanoparticles, or SuperDots, can detect individual particles with thousand times more sensitivity than existing materials.
Researchers at the University of Alberta have developed a new method for creating inexpensive and easily manufactured nanoparticle-based solar cells using phosphorus and zinc. The team's innovative approach could make solar power more accessible to off-grid communities and reduce costs by up to half.