Articles tagged with Nanoparticles
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Researchers at Tokyo University of Science have developed bionanoparticles derived from corn that selectively target and inhibit the growth of cancer cells, inducing tumor necrosis factor-α release. These findings suggest a novel, economical, and safe anti-cancer therapy approach.
Researchers have developed a new system called Species Agnostic Nanoparticle Delivery Screening (SANDS) that improves the screening process for drug-delivering nanoparticles. SANDS allows for simultaneous testing of nanoparticles in mouse, primate, and human cells, enabling more accurate predictions of delivery in humans.
A team of researchers has reprogrammed the tumor microenvironment of liver cancer by using mRNA nanoparticles, restoring the function of the p53 master regulator gene. The approach increased antitumor immune responses in hepatocellular carcinoma laboratory models and shows promise for treating HCC and other cancers.
Researchers found nanoparticles from human activities rapidly grow in atmosphere and influence cloud formation, affecting raindrop formation and changing rainfall regime. The study provides new insights into the impact of small aerosols on precipitation and improves climate change studies based on mathematical models.
A study published in Nature Communications reveals that Schwann cells in the peripheral nervous system generate pain signals during migraines. Blocking these signaling pathways using nanoparticles offers promise for novel migraine treatments.
Researchers have designed a nanoparticle system that can deliver fluorescent dyes to diagnose and treat pancreatic cancer tumors. The system overcomes the challenge of reaching cells deep within dense tumor masses, enabling detailed images of tumor structures and potentially targeted therapies.
Researchers have identified the impact of protein corona formation on nanoparticles' physiochemical and biological properties. This knowledge can be used to optimize carriers for nanomedical applications, improving the efficiency and effectiveness of biopharmaceutical delivery.
The novel vaccine combines immune focusing and self-assembling nanoparticles to elicit a strong protective response. In animal studies, it showed higher levels of neutralizing antibodies than existing vaccines and protected mice from death in lethal challenge experiments.
Scientists at UC Riverside and UCLA have engineered nanoparticles to serve as 'molecular traps' that bind to SARS-CoV-2, preventing it from attacking macrophages and inducing inflammation. The findings suggest potential therapeutic strategies for treating COVID-19-associated diseases.
A new intranasal flu vaccine constructed with nanoparticles has been shown to offer strong protection against different influenza virus strains in mice. The vaccine elicited multifaceted immune responses, leading to robust cross-protection and long-lasting defense.
Researchers have developed a novel combination of two drugs delivered in nanoparticles that extend the survival of mice with medulloblastoma. The treatment targets the mTOR pathway and reduces off-target toxicity, making it a potential less toxic alternative to current treatments.
Janus particles, with two distinct physical chemical properties, exhibit unique behavior in simulations. Their shape significantly influences their orientation at interfaces and mobility, impacting rheology and processing schemes.
Researchers detected 43 trillion miniature plastic particles in Switzerland every year, with estimates suggesting up to 3,000 tonnes of nanoplastics covering the country annually. The study reveals that nanoplastics originate primarily from urban areas and global emissions, posing potential health risks when inhaled.
Researchers at TTUHSC developed novel hydrophilic nanoparticles that target bacterial membranes, killing pathogens while sparing mammalian cells. The nanoantibiotics' size-dependent activity reveals a new blueprint for developing non-toxic and environmentally friendly antibiotics.
Researchers have created a new, simpler way to fabricate SERS nanostructures with superior stability and performance at low cost. By using a heat-resistant polymer called polyimide (PI), they can produce nanosurfaces with nanopillars that enhance signal intensity for efficient chemical detection. The new fabrication method has the pote...
Researchers developed a novel polymeric nanoparticle that selectively binds to fibrinogen in human plasma, offering a simpler and less expensive way to manufacture fibrinogen concentrate. This breakthrough could lead to the creation of more efficient fibrinogen-specific affinity reagents for drug development.
Researchers at Penn Medicine have discovered a new method to prevent the body's proteins from attacking treatment-carrying nanoparticles, allowing for more effective delivery of therapies. By coating nanoparticles with natural suppressors of complement activation, such as Factor I, the team has shown improved protection against immune ...
Scientists develop hairy cellulose nanocrystals to capture and remove excess chemotherapy drugs from the blood. The nanocrystals effectively removed over 6,000 milligrams of doxorubicin per gram, increasing DOX capture by two to three orders of magnitude compared to existing methods.
Researchers at Japan Advanced Institute of Science and Technology develop a novel strategy to quickly separate intact lysosomes with high purity using magnetic-plasmonic hybrid nanoparticles. The technique allows for rapid extraction of lysosomes from cells, reducing the time required compared to existing methods.
Researchers developed a color-coded test that quickly signals whether medical nanoparticles deliver their cargo into target cells. The tool, tested in mouse cells and living mice, assesses nanoparticle formulations on their ability to escape cellular defenses and reach the cell's interior.
Researchers developed a method to enhance the conductivity of metal nanowire electrodes by using plasmon-enhanced laser nanosoldering. The technique involves irradiating silver nanoparticles with a high-intensity laser, creating hot spots that increase the contact area between particles and improve conductivity.
Researchers have created nanoparticles that can store hydrogen, reducing the need for pressurized tanks and cooling. The discovery could enable climate-friendly fuels and production methods for airplanes, ships, and steel.
Researchers at Penn Medicine have developed a structural blueprint for nanoparticles that can target and deliver treatment to white blood cells, such as neutrophils, that contribute to acute lung inflammation. The findings represent a significant step in understanding the condition and function of the immune system.
The discovery of electroferrofluids with nonequilibrium voltage-controlled magnetism has the potential to control pattern formation and structures, providing valuable insights into dissipative systems. This system can be used to study transition into dissipative systems and understand how external influences interact with the system.
The project aims to decorate DNA sequences with colourful nano-lights to enable faster read/write processes and novel data encoding concepts. By using unique recognition capabilities of single DNA strands, the consortium plans to develop novel nanomaterials, algorithms, and reader devices for efficient data storage.
Scientists at Japan Advanced Institute of Science and Technology developed a novel method to create liquid metal nanoparticles using biomolecules and quantum beam radiation. The resulting nanoparticles exhibited unique structural and physicochemical traits, enabling NIR bioimaging and photothermal activation for cancer treatment.
Researchers at NIST developed new standards and calibrations for optical microscopes, enabling accurate measurement of microdroplet volumes smaller than 100 trillionths of a liter. They combined microscopy with gravimetry to verify results, linking their findings to fundamental constants of nature.
Recent preclinical study results demonstrate the Spike Ferritin Nanoparticle (SpFN) COVID-19 vaccine developed by WRAIR elicits potent immune responses and offers broad protection against SARS-CoV-2 variants and other coronaviruses. The SpFN vaccine uses a ferritin platform to present multiple copies of the coronavirus spike protein, i...
Researchers have discovered a nanoparticle therapeutic that enhances cancer immunotherapy and treats malignant pleural effusion. The treatment targets the immune system to recognize and eliminate cancer cells, improving survival rates and quality of life for patients.
Researchers developed nanoparticles that activate key cancer fighters by driving up immunity at the tumor site, improving interactions with antibody therapies. The technique left six of 10 mice with lymphoma tumor-free and was effective in melanoma when combined with existing immune response amplifiers.
Scientists have created a new material using nanometer-scale ceramic particles decorated with polymer strands that exhibit enhanced toughness. The material's unique property allows it to dissipate energy from impacts rapidly, making it suitable for applications such as body armor and bulletproof glass.
Researchers at Vanderbilt University Medical Center have identified a nanoparticle called a supermere, which carries enzymes, proteins, and RNA associated with multiple diseases. The discovery provides new insights into the role of extracellular vesicles and nanoparticles in disease transmission.
Researchers have developed smart transformable nanoparticles that can alter their size and shape in response to physiological conditions, improving particle circulation, biodistribution, and targeted therapy for cancer theranostics. These particles promise enhanced tumor diagnoses and treatment by adapting to the physiology of tumors.
Researchers have designed a new nanoparticle adjuvant that significantly improves antibody production following vaccination against HIV, diphtheria, and influenza. The adjuvant speeds up lymph flow to lymph nodes, helps antigens reach B cells before breaking down, and activates inflammatory cytokines for a stronger response.
Scientists at UC San Diego create nanoparticles that mimic the flu virus's ability to escape endosomes, enabling efficient delivery of mRNA into cells. This breakthrough could lead to improved delivery of mRNA vaccines and therapies.
A simple change in the way donor cells are processed can maximize a single cell's production of extracellular vesicles, which are small nanoparticles naturally secreted by cells. The finding offers new avenues for research around cellular therapies, where transplanted cells are used to help the body heal or work better.
Researchers developed a nickel-cobalt metal dimer on nitrogen-doped carbon that can catalyze electrolysis under both acidic and basic conditions. The new system exhibits comparable overvoltage to commercial Pt-based catalysts and shows significant activity enhancements compared to individual single-atom catalysts.
Researchers developed a new membrane-based separation technology using MOF nanoparticles, which consumes up to 90% less energy than traditional methods. The technology overcomes interfacial adhesion problems by fabricating compatible MOF fillers, improving membrane performance.
Scientists at the University of Southampton have created nanoparticles that can target and kill deadly bacteria hiding in human cells. The breakthrough could lead to a new treatment method using injectable or inhalation-based antibiotic-laden capsules, potentially saving thousands of lives annually.
A new imaging technique called single-shot photoluminescence lifetime imaging thermometry (SPLIT) measures temperature in 2D, without contact, and in real-time. This technology could improve photothermal therapy and help detect skin cancers.
Researchers at St. Petersburg State University develop a new method for synthesizing nanoparticles from metal-organic frameworks, enabling detection of heavy metal ions in water with significantly lower limits of detection. The synthesized particles can also be used as luminescent sensors to detect Cu2+, Cr3+, and Fe3+ ions.
Researchers have demonstrated the effectiveness of polymer-coated nanoparticles in delivering drugs to the brain, overcoming the blood-brain barrier challenge. The study showed that zwitterionic polymers improve accessibility but are rapidly absorbed by blood vessel walls.
Researchers at Seoul National University explored the effects of oxygen doping on magnetite nanoparticles. They observed an intriguing variation in the Verwey transition temperature and proposed a diffusion model to explain this phenomenon.
Scientists have developed a method to synthesize nanocrystals in live cells through space-time coupled synthesis, enabling the creation of super biosystems. This approach has been successfully applied to various cell types, including yeast, bacteria, and mammalian cells.
A multidisciplinary team of researchers used a new X-ray technique to discover zinc-containing nanoparticles lodged within the wooden hull of the Mary Rose, leading to its deterioration. The nanoparticles, likely from anaerobic bacteria, have been found in conjunction with polymer deposits that were added to preserve the ship's remains.
Researchers developed a flexible, self-powered device that translates sound waves into electrical signals, mimicking the inner ear's function. The device, implanted in a model ear, accurately recreated music files, offering a promising solution for treating hearing loss without batteries.
Researchers at Duke University developed electrochromic technology that can alternate between harvesting heat from sunlight and allowing an object to cool. The device, which uses a thin layer of graphene and metal nanoparticles, demonstrates a tuning range of thermal radiation never seen before.
A study by the University of Pennsylvania and Indiana University found that a nanozyme therapy, combining ferumoxytol and hydrogen peroxide, significantly reduced the buildup of harmful dental plaque and targeted bacteria responsible for tooth decay. The treatment effectively killed Streptococcus mutans bacteria while leaving other ora...
Researchers at USTC have successfully synthesized small-sized Pt intermetallic nanoparticle catalysts with ultralow Pt loading and high mass activity. These catalysts exhibited excellent electrocatalytic performance for oxygen reduction reaction in proton-exchange membrane fuel cells, potentially decreasing the cost of fuel cells.
A research team developed a new material platform by transferring chirality from molecular to microscale through self-assembly. The resulting chiral nanomaterials exhibit broad optical activity in the short-wave infrared region, enabling applications such as infrared neural stimulation and imaging.
Researchers have developed nanoparticles that can communicate with and slow the development of cancer cells. The nanoparticles aggregate in cancer cells, reducing metabolic activity and growth, and are activated by MMP-9 enzyme secreted by cancer cells.
The study utilizes gas-phase electrophoresis (GEMMA) to separate nanovesicles from proteins in natural samples. This allows for accurate attribution of effects to transport vesicles, crucial for understanding cellular communication and metabolism. The method has significant implications for extracellular vesicle research and its releva...
Scientists have found that adding a single atom to rutile titanium dioxide can create oxygen vacancies, leading to more stable local structures and controlling reaction stability. This discovery could lead to new ways of understanding the relationship between material structure and function.
Researchers have developed a new approach to deliver therapeutic nucleic acids using nanoparticles coated with antibodies. This system targets cancer cells while sparing normal cells, showing improved efficacy and reduced toxicity compared to previous methods.
Liquid marbles' unique hydrophobic outer layer allows for faster evaporation than bare water droplets due to particle-particle and liquid-particle interactions. The team's mathematical model accurately predicts evaporation behavior, providing insights into these tiny biological structures.
Researchers found that nanosilver treatment can increase the risk of recurrent infections when used long-term due to pathogen adaptation. Long-term exposure allows bacteria like Pseudomonas aeruginosa to evolve and resume normal growth upon discontinuation of treatment.
A team of scientists created a uniform protein nanoparticle, TIP60, with a diameter of 22 nm, which can be modified to target specific molecules. The 3D structure of TIP60 was elucidated using cryo-electron microscopy, revealing an icosahedral 60-meric structure with porous properties.
Researchers use high-intensity X-rays to study a single catalyst nanoparticle's surface changes during chemical reactions. The study reveals how the surface composition affects activity, shedding light on industrial catalytic materials.
Researchers developed a fluorescence quenching assay to probe the integrity of cell membrane coating on biomimetic nanoparticles. The study found that only 20% of particles were fully coated, indicating significant limitations in current coating protocols.
Researchers developed nanoscale insecticidal hair coating for prolonged anti-lice protection, reducing re-treatments and side effects. The coating, formed using halloysite nanotubes, retains its protective properties after washing the animal's hair.