Articles tagged with Nanoparticles
Okinawa Institute of Science and Technology (OIST) scientists have designed a novel silicon-based anode to provide lithium batteries with increased power and better stability. The new anode, featuring nanostructured layers of silicon, improves the battery's ability to charge and deliver energy over time.
A biodegradable nanoparticle injection after a spinal cord injury prevents inflammation and scarring that inhibits repair. Mice with the treatment were able to walk better than those without, suggesting a potential new approach for human spinal cord injury treatment.
Researchers at Fred Hutchinson Cancer Center developed a nanoparticle delivery system to extend the therapeutic potential of messenger RNA, delivering gene changes to targeted cells. The 'hit-and-run' genetic programming approach can be easily scaled up for various disease applications.
Researchers eliminate almost all nanoparticle emissions from some 3-D printers using a new approach that involves enclosing the device with a HEPA filter and printing at low temperatures.
Researchers have developed a method that targets cancerous tumors with chemotherapy, delivering the drug directly to cancer cells while protecting healthy cells. The treatment uses nanoparticles and ultrasound to improve delivery, showing promising results in mice experiments.
Researchers at ITMO University have developed a new approach for printing luminescent structures using europium-doped zirconia nanoparticle ink. The ink enables the fabrication of custom holograms with high stability and durability.
Scientists have created magnetic nanobiocomposite beads that can effectively remove oxybenzone, a coral killer found in sunblock, from seawater. The beads, made from environmentally friendly materials, can capture high concentrations of oxybenzone and have shown promising results in laboratory tests.
Researchers have successfully formed and imaged tiny quasicrystals using silica nanoparticles, revealing a non-periodic yet ordered structure. The team used transmission electron microscopy to capture the growth process, which was influenced by varying concentrations of chemical compounds and mechanical stirring.
Researchers developed a minimally invasive technique using magnetism to activate specific cells in the brain, inducing bodily movements such as running and rotating. This breakthrough could lead to advances in studying and treating neurological diseases, including traumatic brain injuries, Parkinson's disease, and depression.
Research at RIT develops new precision quantum sensing solutions using levitated optomechanics, capturing data with improved accuracy. The study aims to create smaller and lighter sensors for various applications, including detecting gravitational waves and perfecting quantum computing.
Environmental scientists at Virginia Tech have discovered that burning coal produces tiny titanium oxide nanoparticles, which can be toxic to humans. These nanoparticles were found in coal ash, city streets, and even wastewater treatment plants worldwide.
Researchers at Hebrew University developed novel nanoparticles for 3D printing in water, offering tunable properties and high light sensitivity. This breakthrough enables the creation of bio-friendly structures, tailored fabrication of medical devices, and environmentally friendly additive manufacturing.
Researchers developed a new non-toxic contrast agent for magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA), surpassing gadolinium's limitations. The agent, PEG-IONCs, demonstrated high biocompatibility in rabbits, beagle dogs, and macaque monkeys, showing promise as a next-generation diagnostic tool.
Researchers at Tokyo Institute of Technology developed a method to synthesize microscopic alloy nanoparticles using dendrimers, achieving 24 times greater oxidization activity than commercially available catalysts. The discovery opens up new possibilities for creating high-performance materials in various fields.
Researchers developed nanoparticles loaded with curcumin, a common spice compound, to target and destroy treatment-resistant neuroblastoma tumor cells. The study showed promising results in killing cancer cells while producing minimal toxicity in healthy cells.
This research reviews the use of probiotics for producing metallic nanoparticles (MNPs), which have potential applications in treating diseases and diagnosing conditions. Gold, silver, copper and zinc oxide NPs are suggested for drug delivery, antimicrobial activity, and anti-corrosive properties.
Researchers found that titanium dioxide nanoparticles can increase inflammation and damage to the intestinal mucosa in mice with colitis. Patients with colitis are recommended to avoid foods containing E171, a food additive made from titanium dioxide.
University scientists at Swansea University and Islamic Azad University have developed a new class of materials suitable agents for oil displacing in enhanced oil recovery. The nanoparticle-surfactant complexes improved oil recovery by 58% compared to 45% recovery in the presence of surfactant alone.
Researchers developed a nanoparticle-based adhesive that exhibits imaging contrast effect in CT and ultrasound, is biocompatible, and ensures accurate target localization during movement. The new glue has shown less toxicity than FDA-approved options and was successfully tested in animal models for various surgical procedures.
A University of Michigan team has created a method to add metallic nanoparticles into semiconductors with virtually no added manufacturing cost. The process enhances LED lighting efficiency and allows for precise control over the distribution of particles, potentially enabling future applications such as invisibility cloaks.
Researchers developed ceria-zirconia nanoparticles to treat sepsis by removing harmful oxygen radicals and reducing inflammatory responses. The nanoparticles improved survival rates by 2.5 fold in mice with sepsis, offering a new therapeutic strategy for this deadly disease.
A new nanoparticle 'buckyswitch' developed by Clemson researchers improves microscopic imaging resolution by allowing microscopes to capture images up to the terapixel level. This innovation overcomes the diffraction limit constraint and enables clearer visualization of small cellular structures.
A novel theory explains how metal nanoparticles form, revealing a balance between bond strength and ligand binding. This understanding enables the creation of more efficient and sustainable nanoparticle production processes for applications like biolabeling and targeted drug delivery.
A team led by Gang Han has designed a human protein-based, tumor-targeting Magnetic Resonance Imaging (MRI) contrast that can be easily cleared by the body. This discovery holds promise for clinical applications, including enhanced MRI contrast for early-stage tumor detection.
Researchers developed silver-silica nanoparticles with an ampicillin coating that target antibiotic-resistant bacteria while being inert to human cells. The nanoantibiotic showed efficacy against both resistant and non-resistant strains of E. coli, offering a promising strategy for combating drug-resistant infections.
Korean scientists report that ceria-zirconia nanoparticles act as effective scavengers of oxygen radicals, promoting a greatly enhanced surviving rate in sepsis model organisms. The nanoparticles accumulate in organs where severe immune responses occur and successfully eradicate reactive oxygen species.
Scientists harness immune system's detection of cancer proteins to improve treatment, showing 20% complete response in preclinical melanoma models. The 'sticky' nanoparticles work synergistically with immunotherapy drugs to increase immune cell response.
Researchers at Empa investigate microfiber release from polyester textiles during washing, finding constant fiber quantity regardless of temperature or wash cycle duration. The study reveals a lack of effect from washing agents and detergents on microfiber release.
Exosomes, tiny biological nanoparticles, have shown promise in detecting and treating diseases such as cancer and Parkinson's. Researchers believe they can activate immune responses, deliver therapeutic molecules, and even serve as biomarkers for disease detection.
Researchers developed a new photocatalyst by integrating Cu2O nanoparticles with H2Ti3O7 nanotubes, showing improved photocatalytic activities for organic pollutant degradation. The composite exhibits stronger visible spectral response and wider absorbance, reducing bandgap energy and inhibiting electron-hole pair recombination.
Researchers developed a new drug delivery platform that uses ultrasound waves to trigger the dispersal of chemotherapy-containing nanoparticles precisely at tumor sites. The platform resulted in a two-fold increase in targeting efficacy and a dramatic reduction in both tumor size and drug-related toxicity.
Scientists have developed a new, inexpensive technique to create color-shifting nanoparticles inspired by beetle shells. The method produces tiny particles that can be easily controlled, enabling adjustable colors within materials or fabrics. This breakthrough could lead to the production of easier-to-read sensors and anti-tampering tags.
Assemblies of metallic nanoparticles behave like bulk magnets, displaying intriguing shape-dependent behavior that could improve high-density information storage technologies. The structures' magnetic behavior is influenced only by the shape of the assemblies, revealing a single bulk ferromagnet.
The NANOaers project investigates airborne nanoparticle mixtures and their impact on respiratory health. Researchers analyze the behavior of nanoparticles with other chemicals, aiming to predict their fate and potential health effects.
Scientists used computational models to investigate heterostructured nanoparticles and found that atomistic defects can jeopardize solar cell performance. They predicted a new material with improved optical properties, opening doors for more efficient energy conversion.
Researchers at Swansea University have created a new class of nanomaterials with tunable wettability, which can be used for antifouling and water-proofing surfaces. The materials are inexpensive, non-toxic, and can be applied via spray or spin-coating to various surfaces.
Researchers at Columbia University have developed a new technique to create superstrong, flexible polymers inspired by the nacre of oyster shells. The method uses controlled self-assembly of nanoparticles in a polymer matrix to improve mechanical properties.
A new technique uses magnetic nanoparticles to separate oil from water through electrostatic force and a magnet, showing promise for improving water treatment in oil and gas production. The researchers believe their method could also be used to treat millions of gallons of fresh water and clean drinking water.
Researchers developed nanoparticles that combine two immunotherapy tactics to target and destroy tumor cells, slowing growth in mice with different cancers. The treatment showed promise in treating various tumor types without severe side effects.
Researchers at EPFL developed a dynamic test method that replicates blood and lymphatic systems, allowing for more accurate nanoparticle testing. This method reduces discrepancies between in vitro and in vivo tests, providing valuable insights into nanoparticle behavior.
The University of Huddersfield has launched MIAMI-2, a £3.5 million microscope and ion accelerator facility, one of only three in Europe, enabling nanoscale investigation of radiation damage and advanced materials analysis.
Researchers at UC San Diego have developed nanoparticles that mimic the behavior of natural melanosomes, protecting skin cells from UV radiation. These synthetic melanin-like nanoparticles show promise as artificial melanosomes for novel therapy development.
Researchers have devised an ultrafast tunable metamaterial based on gallium arsenide nanoparticles that can be turned on and off quickly, paving the way for ultrafast optical computers. The material consists of semiconductor nanoparticles that concentrate and interact with light efficiently.
Researchers have developed a new cathode material that uses porous Ti4O7 nanoparticles to confine polysulfides, resulting in high specific capacity and stable performance. This material has the potential to replace expensive and toxic heavy-metal compounds used in traditional lithium-sulphur batteries.
Researchers at KAUST have developed a strategy to create highly fluorescent nanoparticles through molecular design of conjugated polymers. The twisted shape of the molecules produces smaller, brighter particles with tunable spectroscopic properties, opening up new opportunities for bio-imaging and nanomedicine.
The novel method enables making size-tailored zinc peroxide nanoparticles in an environmentally friendly manner. The as-synthesised ZnO2 nanoparticles have potential to kill tumor cells through apoptotic and non-apoptotic mechanisms.
A non-toxic mixture of chitin-rich crab shell powder and silver nanoparticles effectively inhibits the growth of mosquito larvae and prevents bacterial species from multiplying. The eco-friendly solution shows promise in controlling the spread of disease-carrying mosquitoes, including those responsible for malaria.
Researchers at Case Western Reserve University developed a gene-carrying nanoparticle that delivers healthy RPE65 genes to photoreceptor cells, preventing vision loss in mice with Leber congenital amaurosis. The therapy's success indicates promise for treating other inherited visual disorders.
Researchers created uniform 3.2 nm platinum-zinc particles with twice the catalytic activity per surface site, outperforming larger particles containing the same amount of platinum.
Wei Chen, a UTA physics professor, has received the Best Paper Award from American Scientific Publishers for his pioneering work on using nanoparticles to treat cancer. His research involves activating toxins to kill cancer cells and has led to over 20 further journal articles and international recognition.
Osaka University researchers created a non-polymeric mixture with a lower critical solution temperature, exhibiting reversible transitions between a clear solution and a suspension. The system can change color depending on its state and will be useful for developing new thermo-responsive materials.
A Mayo Clinic research team has developed a new type of cancer-fighting nanoparticle that can shrink breast cancer tumors by up to 70-80% and prevent recurrence. The nanoparticles work by engaging the entire immune system to kill cancer cells, prompting the body to create its own memory system to minimize tumor recurrence.
Researchers explore metal nanoparticles for visible-light photocatalysis, enhancing charge-carrier separation and achieving broadband light-harvesting. However, challenges remain in optimizing particle size and improving efficiency.
Researchers at Tecnalia and the ICMCB-CNRS have developed an ultrarapid synthesis method for nano-tobermorite, which speeds up concrete hardening. The technology enables mass production of high-quality tobermorite nanoparticles within minutes, not days.
A novel form of iron, combining protein fibers and iron nanoparticles, has been discovered to fortify food and drinks with iron. This new compound has been shown to cure iron deficiency in rats and is easily digested.
Scientists create programmable nanostructures using pH-sensitive DNA locks to control the optical properties of plasmonic metamolecules. This technology has potential applications in sensors, optical switches, and phase shifters with tailored functionalities.
A new nanoparticle vaccine has been developed to target several different cancer types by delivering tumor antigens to immune cells. The nanovaccine showed anti-tumor efficacy in multiple tumor types in mice, slowing tumor growth and extending animal lives.
Scientists study how iron nanoparticles oxidize at the nanoscale, forming unique structures like hollowed-out nanoshells. They combine experimental techniques with computer simulations to gain insight into the Kirkendall effect.
Researchers analyzed 270 studies and found a mixed picture of nanoparticles' behavior, with their reactions depending on acidity, mineral concentration, and organic substances. The data is inconsistent, insufficiently diverse, and poorly structured, hindering universal predictions.
Sharon C. Glotzer received the 2017 MRS Communications Lecture Award for her work on polymer-tethered nanoparticles. Her paper, published in MRS Communications, demonstrates the use of computational tools to design and assemble functional materials nanostructures.