Articles tagged with Nanoparticles
Researchers create fluorescence-based nanoparticle tracking analysis system for characterizing size and protein expression of individual extracellular vesicles. The system enables analysis of specific proteins in EVs at individual particle levels, providing insights into various life processes.
Researchers at Hokkaido University have designed a highly stable platinum-gallium catalyst that can support propylene production at very high temperatures, making it suitable for a month. The 'doubly decorated' catalyst is alloyed with lead and calcium, which blocks side reactions and improves stability.
Researchers developed nanoparticles that absorb near-infrared light, creating heat and inhibiting electrical activity in neurons. The biocompatible and biodegradable nanoparticles offer a potential tool for controlling neuronal activity remotely.
The study investigates the cellular uptake of Pr3+:LaF3 nanoparticles and their potential as cell nano-sensors. The results show that both nanoplates and nanospheres are easily internalized by A-549 cells via macropinocytosis, leading to an increase in optical inhomogeneity and potentially enabling temperature sensing.
Researchers developed nanoscale sensors that can convert brain electrical activity into optical signals detectable outside the body. These sensors, called NeuroSWARM3, offer a non-invasive way to track brain activity and could one day enable people with physical disabilities to interact with the world and control wearable technology.
Berkeley Lab's Partnership for Advanced Window Solutions accelerates nationwide adoption of highly efficient windows. Researchers also discover unique microbial signatures in cities worldwide and investigate oxygen loss in lithium-ion batteries.
LETI researchers identified the main properties of magnetotactic bacteria and described their application in medicine. They will help create theranostic agents in neurooncology and cardioprotection by using magnetosomes to transport drugs directly to malignant tumors.
Researchers at Kyoto University have discovered a way to enhance radiation therapy using iodine nanoparticles, which trigger cancer cell death when exposed to X-rays. The study reveals that the optimal energy level for X-ray irradiation is 33.2 keV, causing double-strand breaks in DNA and leading to programmed cell death.
Researchers at UTA are developing a new diagnostic tool for small breast tumors, using nanoparticles and ultrasound to detect temperature differences in the body. The technique has the potential to reduce anxiety and costs associated with biopsy procedures, while also improving treatment outcomes.
Scientists investigate how bacteria develop resistance to silver nanoparticles, identifying a key genetic mutation and differences in motility. The findings suggest that silver nanoparticles may be effective against certain strains of bacteria, but caution is needed to prevent resistance.
A study by University of Copenhagen researchers reveals that nanoparticles can target venules, not capillaries, to deliver drugs to the brain. The breakthrough allows for more efficient and safer therapeutic approaches to treat neurodegenerative diseases like Alzheimer's and Parkinson's.
By briefly delocalizing particles over exponentially larger distances, researchers can harness the quantum nature of nanoparticles. This technique also enables highly sensitive instruments to determine forces such as gravity with high precision.
Researchers at Osaka University found that silver nanoparticles induce crystallization in clathrate hydrates, a potential application for latent heat storage materials. The study may lead to improved efficiency in solar energy and heat recovery technologies.
A study by University of Illinois researchers has shown that small quantities of hydrocarbons can be produced when CO2 and water react in the presence of light and a silver nanoparticle catalyst. The findings demonstrate a viable technology for renewable energy generation and chemical manufacturing.
Researchers at Duke University developed acoustoelectronic nanotweezers that control nanoparticles using sound-induced electric fields. This label-free, dynamically controllable method can be applied to various technologies, including biomedicine and condensed matter physics.
Scientists discover fumed silica nanoparticles as an anti-ageing binder to reduce moisture susceptibility and increase durability in warm mix asphalt. The findings offer a cost-effective solution to minimize asphalt-related emissions, paving the way for longer-lasting roadways.
A new engineering strategy introduces photo-controllable profragrance nanoparticles with flash nanoprecipitation technology, allowing for tunable particle size and precise control over fragrance release. This innovation enables the scale-up of profragrance fabrication and has potential for industrial applications.
Researchers at Texas A&M University used machine learning to evaluate metallic nanoparticles' susceptibility for plant uptake. The algorithm indicates how much plants accumulate nanoparticles in their roots and shoots, providing a safer approach to nanotechnology in agriculture.
Researchers developed immune cell-mimicking nanoparticles that target inflammation in the lungs and deliver drugs directly where needed. The study showed complete treatment of inflammation in mice, at a drug concentration where standard delivery methods were ineffective.
Researchers have measured the super-slow process of oxygen loss in lithium-ion batteries, revealing how it changes the electrode's structure and chemistry over time. This new understanding could lead to the development of new ways to engineer electrodes and prevent oxygen loss-related degradation.
Researchers developed a nanoparticle delivery system to stimulate blood vessel growth in the newborn lung, improving survival rates from 70% to 35%. The treatment involves delivering an engineered nanoparticle carrying a STAT3 gene vector, which prompts blood vessel growth and improves lung function.
Researchers have developed a platform that produces bespoke star-shaped polypeptide nanoparticles, effectively delivering range of therapies including gene therapies. The material accelerates bone tissue regeneration with a six-fold increase in new bone formation.
Mineral nanoparticles exhibit enzyme-like properties, catalyzing superoxide and H2O2 production, influencing microbial-mineral coevolution and nutrient cycling. Their discovery challenges traditional views on nanomaterials' inertness in Earth systems.
Divita Mathur is investigating cytosolic access and instability of DNA nanoparticles to overcome current delivery mechanisms. The goal is to create more biocompatible delivery systems, enabling advanced targeted therapies.
A new water filter membrane made from natural raw materials has been developed to render viruses harmless. The membrane combines protein nanofibrils with iron oxyhydroxide nanoparticles to eliminate a wide range of water-borne viruses, including those causing gastrointestinal infections, with great efficiency.
A team of researchers from KTH Royal Institute of Technology has developed a novel nanoparticle design that enhances the contrast of living tissues for X-ray fluorescence imaging. This breakthrough enables early stage tumor detection with lower doses of radiation.
The NIH has launched a clinical trial for a novel influenza vaccine that offers long-lasting protection against multiple flu virus strains. The vaccine, known as FluMos-v1, is designed to stimulate antibodies against the HA protein using nanoparticle scaffolds.
Scientists create synthetic melanin-like nanoparticles to overcome limitations of current dopamine delivery methods, achieving efficient and controlled release in the brain. The proposed method demonstrates promising results in reversing Parkinson's symptoms with high biocompatibility and non-toxicity.
Researchers reviewed various nanofibrous membranes for their filtration efficiency and pressure drop, highlighting the trade-off between mechanical adsorption and electrostatic adsorption in nanoparticle removal. Six filter classifications were also presented, including net/nanofiber and conductive filters.
A team of researchers has developed a new method to combine perovskite nanocubes with spherical nanoparticles to form structured, multi-part nanocrystals. These materials display fundamental new properties such as superfluorescence, which can be harnessed for practical uses like ultrabright quantum light sources.
Researchers at Kazan Federal University and Chinese Academy Sciences have developed peptide nanoparticles that can be visualized in living cells using hyperspectral microscopy. These nanoparticles have the ability to scatter light efficiently, allowing for non-fluorescent labeling of cells.
Scientists have developed a method to quantify internal OH- impurities in upconversion nanocrystals, revealing an exponential relation between luminescence intensity and OH- content. This discovery enriches our understanding of the quenching mechanism and paves the way for highly efficient lanthanide-doped materials.
The vaccine has the potential to improve seasonal flu vaccine effectiveness, produce vaccines faster and use smaller doses. It achieved a strong immune response in mice, providing protection against two different strains of influenza.
Research at TU Wien reveals that individual facets of nanoparticles can form oscillations of different frequencies when exposed to oxygen and hydrogen. This complex behavior can lead to more effective catalysts and insights into non-linear reaction kinetics.
Research by MSU's Morteza Mahmoudi suggests that Covid-19 vaccines developed with nanomedicine may have different efficacies for men and women due to sex-based differences. The study highlights the importance of considering sex in vaccine development and research, particularly in using nanomedicines.
Sumit Sharma, assistant professor at Ohio University, has received a $511,902 NSF CAREER grant to investigate surfactant molecule adsorption on metallic nanoparticles. His research aims to develop a fundamental theory explaining the optimal surfactants for specific results.
Researchers have developed a novel nano-photosynthetic system using blue-green algae and nanoparticles to treat stroke patients. The approach reduces neuronal damage and improves motor function in mice with blocked cerebral arteries, showing promise for human clinical trials.
Researchers at Scripps Research have unveiled an innovative Ebola virus vaccine design that stimulates a better protective immune response. The new approach involves tethering copies of the Ebola virus outer spike protein to a spherical carrier particle, resulting in a more stable and realistic-looking virus particle.
The special issue explores the subtopics of in vivo fate of drug nanocarriers through review and research articles. Featured papers discuss intracellular uptake, impact of particle size and pH on protein corona formation, and in vivo dissolution of poorly water-soluble drugs.
By vaporizing metals within a magnetic field, UC Riverside engineers direct the reassembly of metal atoms into consistent shapes and surfaces. The approach enables manipulation of particle assembly, producing string-like aggregates or globular clusters with tunable properties.
KAUST researchers have developed a robust catalyst that converts carbon dioxide into carbon monoxide gas with 100% selectivity, overcoming the limitations of precious metals. The innovative method uses MOFs to create mixed metal catalytic nanoparticles in a homogenous mixture.
Inkjet printing of metal nanoparticles forms layers with functional anisotropy, causing electrical conductivity to vary between horizontal and vertical directions. Researchers discover that organic chemical residues in the inks are responsible for this effect, enabling new techniques to overcome it.
The review explores recent strategies in surface functionalization, their specific biomedical applications, and comparative toxicities with non-functionalized metallic nanoparticles. It discusses the challenges for metallic NPs to undergo human clinical trials due to their aggregation and toxic nature.
A new pan-coronavirus vaccine has proven effective in protecting monkeys and mice from various coronavirus infections, including SARS-CoV-2 and its variants. The vaccine triggers neutralizing antibodies via a nanoparticle and targets a cross-reactive site of vulnerability on the spike protein.
The patented technology uses magnetic nanoparticles to capture lithium and other critical materials from brines, offering a more efficient and cost-effective process. This innovation has the potential to reduce energy consumption and create new domestic supply chains for these essential elements.
Researchers developed an uncrackable combination of invisible ink and artificial intelligence to encrypt messages securely. Using a carbon nanoparticle-based invisible ink and AI algorithms, they achieved 100% accurate decryption with UV light exposure.
Researchers at UTA are combining nanoparticles and light waves to treat traumatic brain injuries on the battlefield. The goal is to create a synergistic effect with improved healing outcomes.
A new strategy combines AIEgen-mediated photodynamic therapy with Poly(I:C)-based immunotherapy to enhance anti-tumor immune responses. The system induces tumor cell death and stimulates cytokine release, demonstrating potential for preventing tumor recurrence and metastasis.
Researchers develop Nanotraps that capture SARS-CoV-2 viruses within the body, utilizing the body's own immune system to destroy them. The therapy has shown promising results in early stages of testing and could potentially be administered via a nasal spray as a treatment for COVID-19.
Scientists developed zinc-modified aluminum oxide membranes for heavy metal removal, achieving high efficiency rates. The membranes showed antifouling properties and were reusable up to three cycles.
Researchers at Rice University reveal a two-step process by which silver ions are released from nanoparticles, with the possibility of stabilizing the alloy through gold manipulation. The discovery could lead to the development of new catalysts and materials for various applications.
Researchers develop nanoparticles that penetrate human cells and destroy bacteria, offering new hope against antibiotic resistance. The particles use cerium oxide to create reactive oxygen species that kill germs, reducing the likelihood of resistance development.
Researchers create nanostructured bimetallic catalysts with enhanced activity and stability, offering a cost-effective alternative to noble metal-based catalysts. The new material is stabilized on a conductive surface using a polymeric material, enabling predictable catalysis performance.
Scientists have developed a method to create crystalline exoskeletons around delicate liposomes and lipid nanoparticles, stabilizing them at room temperature for up to two months. This breakthrough could help address the need for COVID-19 vaccines to be kept at below-freezing temperatures during transport and storage.
Researchers used mirror SELFI to detect nanoparticles' size and location with nanometre resolution, enabling tracking of disease-causing viruses. This breakthrough could lead to new sensing methods for biomedical applications.
University of Central Florida researchers have developed a new screening technique using nickel-platinum nanoparticles to increase ELISA sensitivity for diseases like cancer, allowing for earlier diagnosis and potentially saving lives.
ITQB NOVA researchers have developed a new approach to produce hydrogen from light using non-photosynthetic microorganisms. The biohybrid systems combine high hydrogen-producing bacteria with self-produced cadmium sulfide nanoparticles, which capture light and enable direct energy transfer.
Researchers have developed next-generation influenza vaccines that protect against a wide variety of seasonal and pandemic strains, including avian viruses H5N1 and H7N9. These nanoparticle-based vaccines spur strong immune responses in animal trials, potentially lowering the risk of bad flu seasons.
Columbia Engineers use DNA nanotechnology to design nanoparticle-based 3D materials that can withstand extreme conditions. The new fabrication process results in robust and fully engineered nanoscale frameworks with a broad range of applications.
Researchers employed nanoparticles-based delivery systems to deliver AMPs for treating deep infections. Intelligent nanocarriers can achieve selective activation and target at infection sites, improving therapeutic efficacy against bacterial infections and reducing toxicity.