Articles tagged with Nanoparticles
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.
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.
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.
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 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.
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.
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.
Researchers develop ultrastable RNA nanoparticles that can regulate cell function, bind to cancer cells, and deliver therapeutic molecules. The stable nanoparticles display favorable attributes, including polyvalent nature, modular design, thermodynamic stability, and chemical stability.
A new imaging technique has been developed to measure catalytical reactions of single nanoparticles and multiple particles printed in arrays. This allows researchers to determine the relationship between efficiency and nanoparticle size, shape, and composition, enabling fast screening of different nanoparticles.
Researchers at Rice University have discovered a nanoparticle that can restore balance to the brain's vascular system after an injury. The PEG-HCC nanoparticles immediately quench superoxide activity and allow the autoregulatory system to regain its balance, potentially treating mild brain trauma by preventing further damage.
Researchers at Case Western Reserve University developed synthetic platelets that double the survival rate of internal injury victims in the first hour after injection. The nanoparticles work by creating healthy clots and binding to natural platelets to form larger clots, reducing bleeding time.
Researchers have made progress toward a portable emergency treatment for stopping life-threatening internal bleeding. Synthetic platelets, artificial versions of blood's natural clotting particles, are being developed to quickly and efficiently form clots at internal wounds, increasing survival rates in laboratory tests.
Soybeans grown in soil contaminated with zinc oxide or cerium oxide nanoparticles show reduced crop yield and quality. The nanoparticles can accumulate in the plants, affecting food quality and potentially requiring increased use of synthetic fertilizers.
Researchers will develop nanocomposites for medical implants that break down safely, replacing metal implants in bone surgery. The project tackles challenges in nanoparticle production, dispersion, degradation, and scaling up manufacture.
A team of scientists aims to create novel materials that change shape in response to external stimuli like heat or light. The researchers will use high-throughput techniques to identify components that can be combined to produce interesting effects.
Researchers found that silver nanoparticles are less toxic to bacteria than their released ions. The team's study suggests that controlling the rate of ion release can enhance antibacterial properties and mitigate environmental impacts. They also discovered hormesis, where low doses of silver ions stimulate bacterial growth.
Researchers have developed a simple, low-cost method to synthesize silver nanoparticles using strawberry tree leaf extract. The technique allows for control over nanoparticle size and geometry, resulting in stable particles that remain effective for up to 6 months.
Researchers at Brigham and Women's Hospital have developed a new approach to cancer treatment using supramolecular nanochemistry. The innovative nanoparticles significantly enhanced antitumor activity while reducing toxicity in breast and ovarian cancer models.
Researchers used electron holography to capture images of electric fields created by ferroelectric materials' atomic displacement. This technique could guide scaling up these materials and ushering in a new generation of advanced electronics.