Articles tagged with Nanoparticles
Researchers create nanoparticles using natural lipids derived from grapefruit, which can transport therapeutic agents to specific cells without causing adverse effects. The technology has been validated in a Phase 1 clinical trial for colon cancer patients and may be applied to treat inflammation-related autoimmune diseases.
Researchers at NIST create three-dimensional scaffolds made with cells and hydrogels to evaluate the biological effects of nanoparticles. The hydrogel-based scaffolds provide a more realistic environment than current laboratory tests, allowing for longer-term studies and better representation of normal exposure levels.
Researchers at the University of Pittsburgh have demonstrated nanoscale alloys that emit bright near-infrared light, which could be used for cancer detection and treatment. The findings have the potential to lead to new applications in health and energy fields.
Researchers have developed a new technique to improve the use of nanoparticles as a drug delivery system. The study found that smaller particles degrade faster in the body than predicted by in vitro measurements. By understanding this degradation, a mathematical model can be developed to optimize nanoparticle-based therapeutic systems.
A national study on nanomaterial toxicity has provided comparable health risk data, enabling regulators to develop policies to protect workers and consumers. The researchers found that carbon nanotubes caused inflammation in the lower regions of the lung, but made them less hazardous by modifying their structure.
A team of researchers has developed a novel material that enhances light absorption in polymer solar cells, increasing their efficiency. The material, Ag@SiO2 nanoparticles, is solution-processable and customizable on the molecular level, offering promising advantages over traditional silicon-based devices.
University of Illinois researchers created a novel approach to produce highly uniform Pt icosahedral nanocrystals using the hot injection-assisted GRAILS method. The synthesis results in high-purity products with ideal models for studying structure-property relationships.
Berkeley Lab researchers have developed a new set of metrics for analyzing data acquired via small angle scattering (SAS) experiments with X-rays or neutrons. The new metrics reduce the time required to collect data by up to 20 times, enabling accurate high-throughput and objective analyses of flexible molecular machines that control c...
A novel gene therapy approach using nanoparticles to deliver GDNF may halt Parkinson's disease progression and reverse symptoms. This non-invasive method bypasses the blood-brain barrier, enabling continuous production of GDNF in brain cells.
Dr. Susan E. Clare's research aims to deliver chemotherapy directly to brain metastases using immune cells and nanoparticles, targeting HER2 positive and triple negative breast cancers. The system uses nanoshells coated with gold to release drugs at will in the appropriate spot in the brain.
Scientists have developed GUMBOS-based materials with targeted properties for medical use, such as selectively toxic to cancer cells and non-toxic to normal cells. The technology also has potential uses in solar cells and biomedical imaging.
Researchers have developed a new approach to testing the health and environmental effects of nanoparticles, taking into account their unique properties. The study's findings highlight the need for revised nanotoxicology tests that consider factors such as size and composition.
Controlling the shape of nanometer-sized catalytic particles is crucial for optimizing their activity and selectivity in applications such as catalytic converters, fuel cells, and chemical catalysis. Surface diffusion plays a key role in defining these shapes. The research found that varying temperature and deposition rate can control ...
Researchers have made significant progress in engineering blue-green algae to produce nanocellulose, a 'wonder material' with great strength and potential applications in biofuels, biomaterials, and more. The team successfully engineered the algae to produce fully functional nanocellulose.
Researchers have developed a new imaging methodology that produces 3-D images of nanoparticles at atomic resolution, revealing new details of defects. This method enables the visualization of atoms from different angles and their arrangement in three dimensions.
Researchers have developed nanoparticles that can be used to create scintillation devices capable of detecting a wide range of X-rays and gamma rays. The nanocomposite detectors showed promising results, but further refinement is needed to optimize their performance.
Researchers create a new imaging technique using nanoparticles to track stem cells in real-time, allowing for better initial placement and optimization of therapeutic approaches. The technique enables precise guidance and monitoring of stem cells, potentially improving regenerative medicine treatments.
Researchers developed biodegradable nanoparticles that deliver inflammation-resolving drugs to sites of tissue injury, promoting clearance of pathogens or damaged tissue and restoring normal state. The treatment has potential for treating conditions like atherosclerosis and neurodegenerative diseases.
Researchers developed biodegradable nanoparticles that selectively target and resolve inflammation, potentially treating atherosclerosis and neurodegenerative diseases. The nanoparticles release an inflammation-resolving peptide drug, promoting tissue repair and reducing chronic inflammation.
Dr Hendrik Ulbricht's team will explore the theoretical possibility of conducting experiments to discover whether there is a limit to quantum theory or not. They aim to generate a quantum superposition state for nanoparticles using matter wave interferometry.
Researchers at Washington University School of Medicine have developed nanoparticles carrying melittin, a toxin found in bee venom, that can destroy human immunodeficiency virus (HIV) while leaving surrounding cells unharmed. This finding offers an important step towards developing a vaginal gel that may prevent the spread of HIV.
Scientists utilize alyssum, pteridaceae, and sinapi mustard to absorb toxic metals from polluted soil through phytoremediation. The extracted poisons are then converted into valuable materials, such as catalytic converters and nanoparticles for cancer treatment.
Researchers develop lipid nanoparticles as vectors in gene therapy to deliver therapeutic genes to cells without degrading within the organism. The technology improves drug absorption for insoluble or poorly soluble molecules, offering a promising alternative for diseases with no effective treatment.
Swedish scientists developed theranostic nanoparticles that can deliver chemotherapy to breast cancer cells while being detectable in MR scanners. The particles are biodegradable and show no toxicity, making them a potential tool against cancer.
Researchers at Duke University found that silver nanoparticles can have adverse effects on plants and microorganisms in low doses, leading to reduced biomass and altered enzyme activity. The study's findings highlight the need for further research into the environmental impact of these particles.
Penn researchers create a protein 'passport' that allows nanoparticles to bypass the immune system, facilitating targeted drug delivery and implant device functionality. The innovative approach could improve treatment efficacy by reducing inflammation and prolonging nanoparticle retention.
Researchers at Helmholtz Centre Berlin have developed a method for producing titanium dioxide nanoparticles at room temperature in a polymer network. The analysis showed that the nanoparticles are homogeneously distributed over the polymeric nanoreactors and have a crystalline structure, enabling their use as catalysts.
Researchers have catalogued the structural diversity of metallic nanoclusters into families using a new numerical simulation method. This breakthrough enables tailoring of specific properties and has potential applications in nanocatalysis and magnetic storage.
Researchers at Northwestern University have created a new set of building blocks for materials science using nanoparticles and DNA, enabling programmable control over material properties. The new approach allows for the creation of novel crystal structures with tailored physical properties.
Scientists used X-ray beams to trace the uptake of zinc and cerium nanoparticles by soya bean plants. Zinc was found to dissolve and accumulate in the plants, while cerium did not biotransform and reached the plant pods.
A new study has found that widely used nanoparticles accumulate in soybean plants grown in farm soil, which could have health implications. Zinc oxide and cerium dioxide, commonly used in cosmetics, were detected in the reproductive/edible portions of the soybeans.
Researchers at University of Michigan discover that nanoparticles have an Achilles heel - they can't escape the bloodstream to reach diseased tissue. However, larger microspheres can be used as drug carriers, ferrying nanospheres to vessel walls or using different shapes to evade red blood cells.
A Case Western Reserve University researcher is creating ultra-high molecular weight polyethylene with embedded magnetic nanoparticles to monitor degradation and wear. The goal is to make implants more resistant to the environment inside the body.
Researchers at INRS Énergie Matériaux Télécommunications Centre developed a novel nanohybrid structure combining carbon nanotubes and lead sulfide nanoparticles using pulsed laser ablation technique. The new material exhibits strong photoresponse, fast photocurrent response time and spectrally wide photoactivity.
A UT Arlington bioengineering researcher, Kytai Nguyen, is working on a drug-delivery portion of a project to develop nanoparticles that will stimulate lung growth and remodeling. The project aims to help patients with destructive lung diseases by introducing drugs through inhaled nanoparticles.
Researchers at MIT have created a device that can deliver RNA, proteins and nanoparticles through cell membranes by deforming cells. The technique has shown success in delivering reprogramming proteins and generating induced pluripotent stem cells with improved efficiency compared to existing methods.
Researchers at Syracuse University studied nanoparticle toxicity, finding that shape and charge modifications can alter chemical interactions with cell membranes. The study highlights the need for safe handling procedures in nanomanufacturing and nano-biotechnology.
A team of researchers from Australia and France has developed a novel manufacturing technique to create uniform silica wires through self-assembly. The technique enables the combination of silica with any material, paving the way for new applications in sensing, photovoltaics, optical switches, and photon sources.
Scientists have created a self-sterilizing composite material derived from Douglas fir needles that can coat medical implants and surgical devices to prevent microbial growth. The material uses silver nanoparticles generated from the plant extract, which acts as a natural chemical reducing agent.
Researchers found that iron oxide nanoparticles can effectively label human endothelial cells for in vivo magnetic resonance tracking. However, high concentrations of INOPS can induce cell death and affect cell activity.
Researchers at MIT have developed a new technology that can detect cancer biomarkers in the urine, potentially enabling earlier diagnosis and improved patient outcomes. The system uses nanoparticles to amplify tumor signals, making it easier to identify specific proteins secreted by cancer cells.
Researchers have found that nanoparticles produced by fungus A. oligospora stimulate the immune system and kill tumors, offering a potential new approach to cancer treatment. The discovery could lead to the development of novel materials for therapeutic applications.
Researchers developed nanoparticles that generate heat to kill cancer cells using infrared light. The new particles showed no toxicity and were able to withstand repeated heating cycles.
A biodegradable nanoparticle has been shown to halt multiple sclerosis in mice by tricking the immune system into stopping its attack on myelin. This technology also shows promise for treating Type 1 diabetes and airway allergies such as asthma.
Researchers at Brown University have discovered how ingesting too much silver leads to argyria, a rare condition where skin turns grayish-blue. The study shows that silver nanoparticles are broken down into silver salt in the stomach, which is then absorbed into the bloodstream and deposited in the skin.
Researchers have developed 'nanobowls' to shield metal catalysts from harsh conditions during biofuel refining. The nanoscale structures can be tailored to enhance functionality and specificity, showing promise for improving the efficiency of biofuel conversion.
Researchers from the University of Florida have developed a new technique for growing new materials from nanorods, enabling the creation of sophisticated structures and materials. The breakthrough could revolutionize industries such as data processing and human medicine by increasing efficiency in polarized LED displays up to 50%.
A new graphene-cobalt material has been developed that can catalyze the oxygen reduction reaction nearly as well as platinum, with improved durability. The material is substantially cheaper than platinum and has shown promise for use in hydrogen fuel cells.
University of Pennsylvania researchers have found a new way to prevent cracks in nanoparticle films by using a technique called spin-coating to create uniform coatings. This method could be a game-changer for industries that rely on these films, such as electronics and solar cells.
Researchers from Johns Hopkins and Northwestern universities discovered how to control the shape of DNA nanoparticles that move through the body. The shapes of these carriers may make a big difference in treating cancer and other diseases. Using computer models, they found that worm-shaped particles resulted in 1,600 times more gene ex...
Researchers developed positively charged nanoparticles that efficiently transduce into islet cells, enabling accurate monitoring via MRI. The study suggests these nanoparticles could be useful for evaluating graft survival and monitoring therapeutic interventions in islet transplantation.
Researchers created photoluminescent nanoparticles that shine clearly through over 3 centimeters of biological tissue. The particles, made with calcium-fluoride shells and thulium core, provide high-contrast imaging without adverse effects.
Researchers found that nickel creates a barrier in electrode materials, reducing charging and discharging rates. The team suggests ways to improve the materials by preventing nickel from forming these barriers.
Researchers at UGA have developed a new method for delivering drugs to mitochondria, increasing the effectiveness of cancer, Alzheimer's, and obesity treatments. The approach uses biodegradable nanoparticles to target the 'powerhouse of cells', resulting in improved survival rates for brain cells and reduced fat production.
Scientists at the University of Illinois have developed a new technique for manipulating nanoparticles using low-power optical nanotweezers. The method, which operates at average power levels 100x lower than standard laser pointers, enables precise trapping and probing of fragile biological samples.
Researchers developed a nanoparticle system that can detect even the smallest levels of heavy metals in water and fish, offering an inexpensive alternative to existing cumbersome techniques. The device is capable of measuring low concentrations of mercury, a toxic metal that can accumulate in predatory fish and harm human health.
Researchers have developed an invisible QR code that increases security on printed documents, making it difficult to replicate. The code can be read by a smartphone under near-infra-red light illumination, offering a new level of authentication for solid objects.
Researchers at Johns Hopkins Medicine have designed nanoparticles that can safely and predictably infiltrate deep into the brain, delivering chemotherapy drugs to treat brain cancer. The breakthrough allows for controlled release of medication over time, reducing dosage challenges and improving treatment outcomes.
A Swiss-American team has developed a simple, inexpensive system to detect heavy metal pollutants like mercury in water and fish. The new method uses nanoparticles with tiny hairs that can trap toxic substances, enabling accurate measurements at unprecedentedly small concentrations.
Researchers at University of New Hampshire and Conductive Compounds Inc. are developing nanoparticles of silver suitable for screen-printing onto photovoltaic solar panels. The project aims to create more conductive and cost-effective solar panels, with potential applications in the increasing global energy market.