Articles tagged with Nanoparticles
Researchers at Wake Forest Baptist Medical Center have developed a fluorescing nanoparticle that can find tumors and generate heat to destroy cancer cells. The nanoparticles, called Hybrid Donor-Acceptor Polymer Particles (H-DAPPs), successfully localized and killed breast cancer in mice, showing potential for future human trials.
Scientists have developed diagnostic tools to improve the controllable and selective fabrication of nanomaterials. New discoveries reveal that molecular precursors govern the synthesis of carbon nanotubes in a purely carbon electric arc. This breakthrough opens the door to improved predictive modeling of nanosynthesis.
A Houston Methodist researcher has made a groundbreaking discovery by sharing his recipe for making nanoparticles. The new method eliminates the need for expensive equipment and allows laboratories worldwide to produce these tiny particles. This breakthrough could lead to more efficient delivery of biotherapeutic drugs and new treatments.
Scientists from ITMO University have developed a new treatment for internal bleeding using magnetically-driven nanoparticles containing thrombin. The treatment reduces overall blood loss by 15 times and accelerates local clot formation.
Researchers found that in vitro testing is no help in predicting which nanoparticles successfully enter cells in living animals. A new DNA barcoding technique allows testing of over 100 nanoparticles simultaneously in a single animal, accelerating the development of gene therapies.
Scientists at University of Illinois Chicago and Lawrence Berkeley National Laboratory have developed a technique to pinpoint chemical reactions inside lithium-ion batteries. This allows them to understand how batteries operate and identify ways to optimize performance.
Researchers created a 3D dynamic model of light-nanoparticle interactions using mining hardware, showing particles lose symmetry and optical properties become heterogeneous when exposed to short intense laser pulses. This finding could enable control of light on a nanoscale for ultrafast information processing devices.
A new imaging technique uses a super sharp needle to nudge individual nanoparticles into different orientations, capturing 2D images to reconstruct 3D pictures. This method allows for the observation of defects in nanostructures like semiconductors and proteins, which can lead to better characterization and control of their production.
A research group from ITMO University combined a nanoantenna with a light source in a single nanoparticle, generating, enhancing and routing emission. The scientists discovered that the emission can be enhanced if its spectra match with Mie-resonant mode, making them efficient light sources at room temperature.
A new composite material made from antibacterial copper nanoparticles has shown excellent antibacterial resistance and durability. The material was tested on cotton and polyester fabrics, which showed strong resistance to bacterial infections even after being washed multiple times.
A team of researchers at Kaunas University of Technology has created a new generation indoor air cleaning device using advanced methods for breaking down pollutants. The eco-friendly technology will clean the air from nanoparticles and gas pollution, improving human health.
Scientists from NUS and international research team create a novel method for deep brain stimulation, utilizing upconversion nanoparticles to deliver visible light deep into the brain. The innovation enables researchers to uncover valuable insights about brain functions with less invasive methods.
The new CU Boulder e-skin has sensors embedded to measure pressure, temperature, humidity and air flow. It can be easily conformed to curved surfaces and is fully recyclable at room temperature, making it a valuable material for diverse medical, scientific and engineering fields.
Researchers have developed a non-invasive method for stimulating the brain using nanoparticles that absorb near-infrared light and emit visible photons, allowing for control of specific brain cells. This breakthrough enables the treatment of conditions such as seizures and fear memories with minimal invasiveness.
A US research team has successfully imaged excited quantum dots at multiple orientations using a new technique called single molecule absorption scanning tunneling microscopy (SMA-STM). This allows for the visualization of defects in quantum dots, which can be characterized and precisely controlled to improve their performance.
Researchers at Tokyo Institute of Technology have discovered a highly efficient ammonia synthesis catalyst that functions at low temperatures, exceeding the efficiency of conventional ruthenium and iron catalysts. The catalyst's unique structure expands surface area to improve performance.
A study published in Science reveals that ultrafine aerosol particles can intensify rainfall in the Amazon region by enhancing cloud formation and thunderstorms. The presence of these nanoparticles, which are too small to play a significant role in polluted areas, has a substantial impact on the hydrologic cycle in the Amazon.
Researchers have created defect-free ZnO quantum dots with record-long luminescence lifetimes and resistance to chemical and biological environments. The new nanoparticles are biocompatible and safe for human use, offering hope for numerous applications in biology and medicine.
Researchers developed a universal vaccine to combat influenza A viruses, producing long-lasting immunity in mice and protecting them against seasonal flu vaccines. The nanoparticles target the stalk of the HA protein, offering universal protection against various influenza viruses.
Researchers at the University of California, Riverside, have created a new, highly efficient catalyst material that could significantly reduce the cost of producing fuel cells. The material, made from porous carbon nanofibers embedded with cobalt, outperforms industry-standard platinum-carbon systems but at a fraction of the cost.
Palladium nanoparticles have been shown to repair atomic dislocations in their crystal structure after experiencing intense strain. Researchers discovered that these nanoparticles function like the human body healing from an injury, allowing them to mend and regain their original state.
Scientists have developed a multiresponsive nanosurfactant that can manipulate liquid droplets using magnetic fields, electric fields, and light. The droplets can be assembled into complex structures and mixed to create chemical reactions.
Researchers have developed a new way of organizing nanostructures that enhances Raman spectroscopy, allowing for the detection of molecules at low concentrations. The technique uses silver nanoparticles on nanowires to boost sensitivity, enabling the detection of compounds in nanomolar or even picomolar concentrations.
Researchers created a nanomedicine platform that uses near-infrared imaging to detect tumors and kill residual cancer cells using phototherapy. The platform has shown great precision and thoroughness in cancer treatment, with promising results in mouse models.
Rice University scientists found that porous particles of calcium and silicate show potential as building blocks for various applications. When assembled into micron-sized sheets and pellets, the arrays held up better under pressure, with bigger individual nanoparticles being 120% tougher than smaller ones.
Researchers designed nanoparticles that mimic a cell surface protein to bind and destroy viruses, including herpes simplex virus and human papillomavirus. The new nanoparticles have shown irreversibility binding and lethal deformations to various viruses in vitro experiments.
Scientists from Friedrich Schiller University Jena have developed nanoparticles that transport antibiotics more efficiently to their destination, killing off pathogens without problems. The particles are able to penetrate thick layers of mucus and biofilms, making them a promising solution against antibiotic resistance.
Researchers at MIT have developed nanobionic plants that can produce dim light for nearly four hours using nanoparticles. This breakthrough technology aims to revolutionize indoor lighting and could one day transform trees into self-powered streetlights.
Researchers have successfully infused watercress and other plants with luminescent properties using nanoparticles, creating a glowing effect similar to 'Avatar.' The glowing plants emit light without any external power source and can be turned off by adding a compound.
Researchers from NC State University have found a simpler way to deposit magnetic iron oxide nanoparticles onto silica-coated gold nanorods, creating multifunctional nanoparticles with useful magnetic and optical properties. The new technique uses an approach called heteroaggregation, resulting in highly uniform nanoparticles that can ...
Researchers have proven the effectiveness of copper nanoparticles as a catalyst for organic synthesis reactions, which is an ideal alternative to toxic heavy metal catalysts like palladium. The use of copper nanoparticles offers numerous benefits, including lower costs, improved selectivity and yields, and recyclability.
Researchers discovered that coating nickel nanoparticles with silica shells fragments the material, creating a small core of oxidized nickel surrounded by smaller satellites embedded in a silica shell. The technique may prove useful for increasing the surface area of nickel available for catalyzing chemical reactions.
Researchers at the University of Konstanz have successfully synthesized Europium(II) oxide nanoparticles, a ferromagnetic semiconductor with promising properties for spin-based electronics. The team developed a novel two-stage process to produce high-quality and anisotropic EuO-nanoparticles with tunable magnetic properties.
Researchers at Northwestern University have captured on video the collision and fusion of organic nanoparticles for the first time. This unprecedented view enables scientists to study dynamic phenomena in nanoscale materials systems.
Researchers studied ceria nanoparticles using probe molecules and a complex ultrahigh vacuum-infrared measurement system, gaining insights into their surface chemistry. The findings suggest that surface defects and oxygen vacancies enhance the high catalytic activity of these nanoparticles.
Researchers developed activatable theranostic nanoplatforms that can highlight tumor cells during surgery using near-infrared fluorescence. These nanoparticles also demonstrated effective phototherapy to eliminate hard-to-remove tumors without harming healthy tissue.
Researchers at MIT have created a new delivery system for the CRISPR genome-editing system, using nanoparticles to target and delete disease-causing genes. The technique achieved an 80% success rate in deleting the Pcsk9 gene, which regulates cholesterol levels, resulting in a 35% drop in total cholesterol levels.
Researchers developed a bone-targeted nanoparticle that delivers chemotherapy directly to bone lesions, reducing tumor size and pain. The targeted nanoparticles showed a strong burst release of cabazitaxel and increased binding to bone compared to non-targeted nanoparticles.
Self-reporting theranostic nanoparticles can provide real-time disease monitoring and tracking. The emerging field of responsive theranostic nanoparticles has the potential to advance imaging platforms and improve disease diagnosis.
Scientists at the University of Michigan found that injecting nanoparticles can redirect neutrophil immune cells away from an injury site, reducing inflammation. This discovery could lead to new treatments for acute lung injuries, sepsis, and atherosclerosis.
Researchers at KAUST developed a solvent-free synthesis method for metal-sulfide nanoparticles using thiourea. The new method produces controllable composition and size of nanoparticles, with potential applications in electrical, optical, and chemical devices.
A new study finds that a 70-year-old malaria drug can block immune cells in the liver, allowing nanoparticles to reach cancer cells. The research showed improved drug delivery to breast tumors and accumulation in mouse tumors and lungs.
Researchers developed a way to control polymer molecule shape, leading to non-spherical nanoparticles that can encapsulate drugs. These natural-shaped plastic nanoparticles have shown preliminary evidence of entering tumor cells more easily than spherical ones.
Researchers from Kumamoto University developed a method to activate silver nanoparticle antibacterial properties at will. Pulsed laser irradiation transformed the shape of gold-coated silver nanoparticles, increasing their antibacterial activity against E. coli.
Researchers developed a new method to create novel nanoporous materials with unique optical, magnetic, electronic and catalytic properties. The technique allows for the creation of tunable nanoporous materials with varying pore sizes by changing the composition of nanoparticles and liquids.
Scientists at Chalmers University of Technology have created a new method to map individual nanoparticles, allowing for improved nanomaterials and safer technologies. The discovery paves the way for the development of more efficient hydrogen detectors and other applications.
Scientists have developed intelligent nanoparticles that can heat cancer cells to a high temperature, but then self-regulate and lose heat before causing harm to healthy tissue. This breakthrough could lead to a more effective treatment method for cancer patients.
The study confirms Einstein's theoretical analysis of Brownian motion by observing the Kramers turnover in levitated nanoparticles. The researchers found that the transition rate between states depends on friction and grows with decreasing friction before decreasing again at low friction levels.
A team of scientists from UC Santa Barbara tested the effect of sulfurized nano-zero-valent iron on a common freshwater alga and found that it picked up cadmium and alleviated toxicity. Organic material produced by the algae mitigated the nanoparticle's toxicity, allowing for greater remediation.
Researchers from Lomonosov Moscow State University developed a new technique to detect volatile compounds, including chlorine, using metallic nanoparticles. The method combines optical detection with dynamic gas extraction and shows high sensitivity without sample preparation.
This study investigates the early stages of antibacterial damage caused by Silver and Copper-based nanoparticles on Gram-negative Pseudomonas aeruginosa. TEM and STEM-HAADF techniques reveal changes in bacterial structure, including adhesion, penetration, and damage to cellular components.
Researchers successfully deliver platinum-based chemotherapy drugs via nanoparticles to treat nonmuscle-invasive bladder cancer, reducing systemic absorption and toxicity. The study offers a potential less toxic clinical alternative to standard chemotherapy.
Scientists at ETH Zurich have developed a method to monitor lipolysis in real-time by analyzing exhaled acetone during exercise. The new breath test can detect when the body starts burning fat, allowing athletes to optimize their training regimen.
Researchers at Berkeley Lab have created a new two-dimensional film that can direct non-mixing liquids into exotic architectures, offering potential for soft robotics, liquid circuitry and energy conversion. The 'bijel' substance is made of polymers and nanoparticles and has been simplified to be easier to produce.
Researchers developed combined photoacoustic imaging and photothermal therapy using Bilirubin (BR) nanoparticles, showing high biocompatibility and outstanding therapeutic effects. The technology has the potential to improve cancer diagnosis and treatment outcomes.
Researchers at HRL Laboratories successfully 3D print high-strength aluminum alloys, including Al7075 and Al6061, overcoming a long-standing challenge in additive manufacturing. Their nanoparticle functionalization technique prevents hot cracking and retains alloy strength.
A team of scientists has developed a new method for producing non-iridescent, bright structural colors inspired by the iridescence of bird feathers. The process uses a simple one-pot reverse emulsion technique to create supraballs with high color saturation and brightness.
A new medicated skin patch has been developed that can transform white fat into brown fat locally, increasing metabolism and reducing fat. The patch was tested in obese mice with significant results, including a 20% reduction in treated side fat and lower fasting blood glucose levels.
Researchers have developed multifunctional nano-sized drug carriers based on reactive polypept(o)ides, which can be manipulated to control their morphology and function. These carriers exhibit stable circulation behavior and show promise for immunotherapy of malignant melanoma.
A team of researchers has developed a simplified approach to directly converting methane to methanol, reducing the need for high heat and pressure. The discovery utilizes colloidal gold-palladium nanoparticles in aqueous solution under mild conditions, enabling the selective oxidation of methane to methanol.