Articles tagged with Nanoparticles
Researchers at Fred Hutchinson Cancer Center developed biodegradable nanoparticles that can genetically program immune cells to recognize and destroy cancer cells. The study showed that nanoparticle-programmed immune cells, known as T cells, can rapidly clear or slow the progression of leukemia in a mouse model.
Researchers at the University of Calgary discovered that nanoparticles can enhance or attenuate viscous fingering, a phenomenon where fluids converge in finger-shaped patterns. The study found that nanoparticle deposition rates and diffusion rates can destabilize flows, creating vortex dipoles.
Researchers at the University of North Carolina Lineberger Comprehensive Cancer Center have discovered a potential novel strategy for improving immunotherapy treatments against cancer. By binding two compounds to a nanoparticle, they were able to improve stimulation of T-cells and increase survival rates in preclinical models.
Researchers at ETH Zurich have developed a method to create nanoparticles with dysprosium atoms that can be magnetised and maintain their magnetic information. The scientists are now looking to stabilise the magnetisation at higher temperatures and longer periods of time.
Researchers have developed a simple way to integrate metal nanoparticles in nail polish, resulting in durable, transparent polishes with metallic sheen. The technique could also be used to create coatings for medical devices.
Using supercomputers, researchers simulate phase transformations in metal surfaces induced by lasers. This helps predict material properties for practical applications such as engineering of new metals.
Chemists from Russia and Switzerland develop biosafe luminescent nanoparticles for imaging tumors and blood vessels, offering an alternative to toxic quantum dots. The particles are composed of hafnium oxide doped with rare earth metals, which provide high luminescent properties while maintaining biosafety.
Researchers at the University of Illinois have developed a new technique to deliver RNA to soybean aphids using nebulization, which appears to block the function of specific genes. The technique has shown promise in improving the uptake of RNA through tiny breathing tubes and may aid in the development of new pest-control systems.
Researchers at the University of Bradford have developed a peptide that blocks RAN protein and kill cancer cells. The new treatment uses nanoparticles to deliver the peptide directly into cancer cells, showing promising results in lab tests.
Researchers from OIST Graduate University have developed a new approach to produce uniform iron nanocubes using magnetron-sputtering inert-gas condensation. These nanocubes exhibit high sensitivity and specificity in detecting NO2 gas, with potential applications in diagnosis of asthma patients and environmental pollution detection.
Researchers at the University of Barcelona have developed a new bonding technique for chips using inkjet printers with silver nanoparticles, enabling the creation of rigid and flexible hybrid circuitry. The method uses inkjet printing technology to assemble surface mount devices, achieving high electrical conductivity and reliability.
Researchers developed a new method to control nanoparticle organization in ultrathin polymer films through entropy-driven segregation. This approach, SCPINS, enables well-controlled nanoparticle organization on a submicron scale without tuning enthalpic interactions through chemistry.
Scientists found that small nanoparticles, even those as small as 1.8 nm, can dramatically improve the properties of polymer materials. This is because smaller particles interact with fewer polymer segments, allowing for new properties such as improved temperature resistance and faster viscosity changes.
Researchers at FSU have made a breakthrough in understanding nanoparticles' potential for delivering medicine to cells. They found that specific silicon particles can be toxic, but also enhance cellular uptake of therapeutic agents.
Pitt's John Keith, Giannis Mpourmpakis and Christopher Wilmer received $500K each for projects on CO2 conversion, nanoparticle growth and new 'pseudomaterials'. The grants will support student education and community outreach initiatives.
Researchers at Sandia National Laboratories have created a method to enhance hydrogen storage properties by confining nanoparticles, enabling quick refueling for hydrogen fuel cell electric vehicles. The new material shows high lithium nitride content and rapid hydrogen absorption and release rates.
The development of efficient luminescent solar concentrators (LSCs) using silicon nanoparticles has the potential to create photovoltaic windows that can capture over 5% of the sun's energy at unprecedented low costs. The technology, developed by researchers from the University of Minnesota and University of Milano-Bicocca, uses silico...
Chronic exposure to titanium dioxide nanoparticles can decrease the ability of small intestine cells to absorb nutrients and act as a barrier to pathogens. This can lead to slowed metabolism and increased difficulty in absorbing certain nutrients like iron, zinc, and fatty acids.
Researchers have developed plant-made virus shells that can deliver small molecules to cancer cells, using the natural binding affinity of these nanoparticles for targeted drug delivery. The findings suggest a potential new approach for treating cancer with increased precision and reduced side effects.
Lipid nanoparticles (SLNs) have shown increased effectiveness in delivering nucleic acids, with advantages including protection against degradation and boost to transfection process. Researchers are exploring their application in treating various diseases, including degenerative disorders of the retina, infectious diseases, and cancer.
A new material has been developed using a simple method that can change color in response to environmental changes, making it suitable for use as sensors. The material also shows promise for bioimaging applications, allowing for non-invasive measurement of molecular interactions in real-time.
Researchers at Salk Institute use mRNA therapy to deliver instructions for clotting protein, achieving normal clotting and minimal immune response in mice. The therapy shows potential as a cost-effective and safer alternative to existing treatments for hemophilia B and other genetic diseases.
Researchers have developed a new technique to track the movement of cancer cells using reversible, photo-luminescent carbon nanoparticles. The study demonstrates that these particles can be used for intracellular imaging and drug delivery tracking without photo-bleaching issues.
Researchers have developed a direct radiolabeling method for nanomaterials using nanographene, eliminating the need for chelators. This approach significantly improves bioimaging accuracy and reduces biases. The method was tested in mice models and showed promising results.
Researchers at UMass Amherst have designed a novel nanoparticle-based delivery system to enhance CRISPR/Cas9's treatment potential for genetic diseases. The new delivery method achieved an editing efficiency of about 30 percent in cultured cells, with successful nuclear delivery in approximately 90 percent of cells.
Researchers have developed a new technique using DNA 'barcodes' to rapidly screen nanoparticles for therapeutic delivery. The method allows hundreds of different types of nanoparticles to be tested simultaneously in just a handful of animals.
Amélie Juhin, a physicist and spectroscopist, has been awarded the ESRF Young Scientist of the Year 2017 prize for her experimental and theoretical studies on resonant X-ray scattering and X-ray dichroism. Her research focuses on probing electronic and magnetic properties of nanoparticles and molecular magnets.
Researchers from Geneva and Fribourg have developed a rapid screening method to select the most promising nanoparticles for medical applications. The new approach can determine biocompatibility in under two days, reducing the need for animal testing and enabling personalized treatment.
Researchers used a combination of computational power and experimental data to study magnetism in a real iron-platinum nanoparticle. The team was able to precisely model the atomic structure and simulate its magnetic properties, revealing defects and imperfections that affect performance.
Researchers use advanced electron microscopy to create 3D reconstruction of nanoparticle, enabling them to measure chemical order and disorder at the single-atom level. The study reveals insights into the material's properties and potential applications in high-density hard drives and disease detection.
Researchers mapped over 23,000 individual atoms in an iron-platinum nanoparticle to reveal the material's defects and properties. The study reveals unique arrangements of atoms at grain boundaries, which significantly influence material properties.
Researchers demonstrate that massaging hair can increase the delivery of nanoparticles to hair follicles by creating channels for particle transport. The ratchet mechanism enhances particle speed and diffusion when massaged parallel to the resting surface.
Researchers at Duke University have developed a tiny device that uses sound waves to create whirlpools to gather proteins and other biomarkers from blood, urine or saliva samples. This innovative technology has the potential to form the basis of a small, inexpensive point-of-care device for early disease diagnosis.
Researchers at NIST have developed a new method to separate synthetic nanoparticles from living organisms, improving experiments on environmental and health impacts of manufactured entities. The sucrose density gradient centrifugation technique yields more accurate counts of ingested nanoparticles.
Biomedical engineers at Johns Hopkins create a method to deliver and release concentrated amounts of drugs to the brain using ultrasound pulses. The technique has the potential to advance many therapies and research studies, minimizing side effects and potentially bringing new treatments to humans within a year or two.
A UCF researcher has developed a method that uses nanoparticles and Faraday rotation to measure protein quantities in test solutions, allowing for faster biochemical immunology test results. This technique could lead to faster diagnoses for HIV, Lyme disease, syphilis, and other infectious conditions.
Researchers at Helmholtz Zentrum München found that nanoparticles from combustion engines can reactivate latent herpes viruses in lung tissue cells. This process can lead to increased viral proteins and acute infection patterns. Further studies aim to investigate the molecular mechanism of virus reactivation by nanoparticles.
Scientists captured real-time, dynamic visualizations of atoms moving in and out of nanoparticles less than 100 nanometers in size. The experiments provided insight into the chemical and physical sciences, revealing that nanoparticles can self-heal and become more durable energy storage materials.
Researchers have developed a revolutionary new crop protection technique using gene-silencing technology and nanotechnology to protect plants against pests and diseases. The BioClay spray has been shown to give plants virus protection for at least 20 days following a single application.
Researchers directly observed how metallic nanoparticles activate catalytic processes by identifying defect sites on the surface of single particles. These findings validate a longstanding hypothesis and provide insights into controlling catalyst reactivity.
Researchers at Aalto University developed a plasmonic nanolaser that operates at visible light frequencies and uses dark lattice modes, allowing for ultrafast and tiny coherent light sources. The nanolaser uses silver nanoparticles arranged in a periodic array, which radiate in unison to produce high-intensity laser light.
Researchers at Duke University have created a new method for printing conductive films using silver nanowire inks, eliminating the need for heat. The resulting printed electronics can be used in various applications such as solar cells, displays, and implantable bio-electronic devices.
This review explores the potential of nanoparticle drug delivery systems to improve solubility, permeability, and stability of ophthalmic drugs. The development of these systems may offer a solution to the limitations of traditional topically administered formulations.
Researchers at Oregon State University developed a new method for sintering nanoparticles using intense pulsed light, enabling faster and more efficient production of advanced flexible electronics. The breakthrough allows for larger areas to be processed in seconds, reducing the need for high-temperature equipment.
Researchers discovered that nanoparticles, resembling caterpillars, trigger immune system activation when internalized. To counteract this detection, three possible strategies are proposed: modifying the coating, understanding absorbed proteins, or attracting natural inhibitors.
Researchers developed RNA nanoparticles that selectively bind to HER2-overexpressing breast tumors, eliminating MED1 expression and sensitizing them to tamoxifen treatment. The nanoparticles also reduced cancer stem cell content, a promising strategy for treating advanced metastatic breast cancer.
Researchers used 3D imaging to study nanoscale details of nickel-cobalt particles, revealing a unique 'Swiss cheese' structure that increases surface area and reactivity. The findings could lead to more efficient and cost-effective catalysts for fuel cells.
Researchers have developed a simple and inexpensive method for stabilizing vaccines at room temperature using nanoparticles, polymers, or sugar. This approach could improve vaccine storage and distribution, especially in remote areas with limited refrigeration, reducing the cost of vaccination programs by nearly 80%.
Researchers propose a nanosized dipole photomotor controlled by a laser, capable of directed motion at record speed. The device has potential applications across the natural sciences and medicine, including delivering drugs to diseased tissues.
Researchers found that normal atmospheric conditions lead to the formation of oxygen-enriched silica nanoparticles with magnetic properties. These reactive oxygen species have been linked to cancer and may explain the known carcinogenicity of silica dust. The study provides a possible explanation for the high toxicity of silica dust.
Researchers at UMass Amherst developed polymer-stabilized droplet carriers that can recognize and encapsulate nanoparticles for transport in a cell. These 'nanoparticle taxicabs' pick up particles on one surface and drop them off on another, representing the first successful translation of biological processes in materials science.
A new gene-editing system successfully cured a genetic blood disorder in living mice, offering a minimally invasive treatment for beta thalassemia and sickle cell disease. The technology significantly decreases unwanted gene mutations and uses FDA-approved nanoparticles to deliver PNA molecules.
Researchers developed a new type of nanoparticle vaccine that effectively vaccinated mice against one dengue virus serotype. The vaccine targets only one strain, but its development could pave the way for vaccines against all four serotypes, potentially offering better protection against life-threatening disease.
Researchers have developed a highly active and stable catalyst for ammonia synthesis under low reaction temperatures. The flat-shaped Ru nanoparticles anchored on Ca(NH2)2 exhibit high catalytic performance and long-term stability.
The team aims to find and design more benign nanomaterials using advanced computational methods. They will use the XSEDE network to study nanoparticles, including their interactions with human health and the environment.
Researchers analyzed 300 published works on silver nanoparticles and wastewater treatment, finding no adverse effects at current concentrations. The team suggests that moderate or high concentrations could pose a problem in decades to come.
Researchers at the University of Texas at Arlington have developed a novel microwave-induced photodynamic therapy that can target deeply situated tumors. The treatment uses microwaves to activate photosensitive nanoparticles, producing tissue-heating effects that ultimately lead to cell death.
Kytai Nguyen, a nationally recognized professor of bioengineering at UTA, has overcome numerous challenges in her life and career. She was awarded the inaugural Embracing Challenge Award from Materials Today magazine for her perseverance and contributions to new knowledge in materials science and engineering.
Researchers at the University of Melbourne develop a novel approach to assemble nano-objects into complex architectures using polyphenol-coated building blocks. The technique enables the creation of 3D superstructures with enhanced chemical diversity and structural flexibility.
University of Illinois researchers have developed a method to quantify drug delivery from nanoparticles inside a cell, providing new insights into the efficacy of therapy and mechanisms underlying cellular uptake. This breakthrough could lead to more effective treatments by controlling and manipulating drug release.