Articles tagged with Nanoparticles
Researchers have created a nano-sized pH meter using nanoparticles that can detect pH changes with high accuracy. The device, called the pMBA sensor, could enable non-invasive 'optical biopsy' to measure acidity in cancer tumors, revolutionizing medical diagnosis.
Researchers have developed tiny carriers, called gadolinium oxide nanoparticles, that can target tumors for improved imaging. These nanoparticles could enhance the diagnosis and treatment of brain tumors and other cancers by reducing toxic effects of chemotherapy.
A recent study calculates the risks of nanotechnology, emphasizing the need for rational work to understand and minimize adverse effects. The research highlights the importance of managing exposure to manufactured nano-sized particles, particularly through respiratory or skin routes.
Researchers have developed a technique using iron oxide nanoparticles to group together in cancerous tumors, creating masses detectable by MRI machines. This method has the potential to replace traditional treatments like radiation or chemotherapy with fewer side effects.
Researchers used nano-sized particles injected into mice to improve ultrasound image quality, detecting nanoparticles in the liver. This technology aims to identify early-stage diseases like cancers at a cellular level.
Researchers at MIT and Brigham have developed a way to design nanoparticles that can selectively deliver chemotherapy to cancer cells while leaving healthy cells intact. The particles, which are about 150 nanometers in size, use targeting molecules called aptamers to home in on cancer cells.
Researchers at Thomas Jefferson University have discovered a nanoparticle that provides significant protection against radiation-induced damage, including hair loss and organ damage. The fullerene-based agent showed promise in reducing organ damage by half to two-thirds, even when given before or after radiation exposure.
Brookhaven scientists have developed a method to create well-defined nanoparticles of metal compounds for catalytic interest. This new approach, reactive layer assisted deposition (RLAD), enables researchers to understand the atomic structures of these particles and their reactivity on the nano scale.
Researchers have developed custom nanoparticles that show promise in providing a more targeted and effective delivery of anticancer drugs. The particles can be made to mimic the shapes of objects found in nature, such as red blood cells or virus particles, and have the potential to reduce side effects associated with chemotherapy.
Researchers have developed a method to separate two different catalysts from a multi-step chemical reaction done in a single vessel using magnetic nanoparticles. This technique could lead to more efficient production of specialty chemicals and reduce waste, benefiting the pharmaceutical and specialty chemical industries.
The Rice University team created nanorice particles with improved properties for chemical sensing and biological imaging. The particles, made of non-conducting iron oxide and metallic shell, offer greater structural tunability than previous optically useful shapes.
Researchers at the University of Illinois have developed a method to stabilize lipids and create biocompatible capsules. These capsules can be used for drug delivery, enzyme-catalyzed reactions, and biosensors, offering new possibilities for health and agricultural applications.
Research by Michigan State University reveals that combustion-derived nanoparticles can cause nasal airway inflammation, rhinitis, and epithelial cell injury. The study's findings suggest that the nose is a potential target organ for nanoparticle toxicity, highlighting the need for better occupational and environmental exposure limits.
Researchers have created temperature-sensitive capsules that can release drugs at different rates, with the release rate controlled by the amount of wrinkling. The solution to cool the capsules without harming surrounding tissue lies in newly discovered nanoparticles chilled through magnetic cooling.
UNSW researchers have created a new type of self-cleaning coating using titanium dioxide nanoparticles. The coating uses visible light to kill Escherchia coli and break down organic compounds, reducing the need for chemical agents. Lab trials show promising results, paving the way for further testing and potential industrial applications.
UCLA researcher Dr. Andre Nel has developed a new testing method to evaluate the safety and health risks of engineered nanomaterials. The approach uses existing toxicity testing frameworks to predict potential hazards, enabling the classification of materials as safe or toxic.
Researchers at Lehigh University have determined the structure of a type of gold-palladium nanoparticle, which is crucial for an environmentally friendly catalyst promoting the oxidation of primary alcohols to aldehydes. The catalyst outperformed similar ones in terms of efficiency.
A University of Georgia research team is studying the effects of manufactured nanoparticles on microorganisms and small worms in soil. The study aims to understand the bioavailability and toxicity of zinc oxide nanoparticles, which may establish potential ecological and human health risks if released into the environment.
Researchers found that certain carbon nanoparticles activate human platelets and stimulate blood clotting, leading to increased risk of cardiovascular disease. The study also revealed that some nanoparticles mimic molecular bridges involved in platelet interactions.
Researchers at NIST have successfully assembled and disassembled long chains of magnetic nanoparticles, offering potential applications in medical imaging and information storage. The chains are formed using a weak magnetic field, which induces alignment of the nanoparticles and allows for controlled manipulation.
UCF researchers have developed a portable method for producing safe drinking water from any source, including contaminated wastewater. The system uses naturally created nanoparticles to kill bacteria that foul membranes used in traditional water treatment methods.
Researchers have developed a nanoparticle that can identify brain tumor cells and selectively target them for radiation therapy. The particles, called functional metallofullerenes, have shown promise in preliminary experiments and may one day benefit patients with advanced brain tumors.
Researchers have developed RNA nanoparticles that can carry multiple therapeutic agents into specific cancer cells, where they can halt viral growth or cancer progression. The tiny particles are assembled from three short pieces of ribonucleic acid and possess the right size and structure to gain entry into cells.
A research team has found a strong relationship between polymer reactivity and nanoparticle size, shape, and morphology. They discovered that strongly interacting polymers produce smaller, pyramid-shaped particles, while weakly interacting polymers yield larger, spherical particles.
Researchers at VCU are developing magnetic nanoparticles that can combine detection and treatment in a single process, promising new hope for breast cancer treatment. The nanoparticles use magnetodynamic therapy to kill tumor cells with minimal damage to healthy cells.
Researchers have developed a permanent solution to fogging on glass, eliminating the need for constant reapplication. The coating remains stable over time and can be applied to various surfaces, making it suitable for use in eyeglasses, camera lenses, and more.
University at Buffalo scientists developed nanoparticles that delivered genes to adult brain stem/progenitor cells in vivo with no observable toxic effect. The technique may allow repairing brain cells damaged by disease, trauma, or stroke. This breakthrough demonstrates the potential for non-viral vectors in gene therapy.
Researchers propose a new magnetic herding technique that manipulates colloidal objects using magnetism, offering flexibility and convenience over existing methods. The technique has potential applications in biosensors, medical diagnostic devices, and microelectronic components.
Scientists at the University of Illinois have developed a method to create flexible silicon nanotubes using nanoparticles. These nanotubes exhibit a unique combination of properties, including elasticity similar to rubber, making them suitable for various applications such as catalysis and guided laser cavities.
Scientists have successfully delivered genes to the lungs of CF mice using DNA nanoparticles, enabling real-time imaging and assessment of gene expression. This breakthrough technology holds promise for treating serious lung diseases like cystic fibrosis with novel nucleic acid-based therapies.
Researchers at Cornell University have created fluorescent nanoparticles called 'Cornell dots' that can be used for biological imaging, optical computing, and other applications. These particles offer an alternative to quantum dots due to their greater chemical inertness and reduced cost.
The grant aims to develop smart nanoparticles that can deliver photoactivated molecules to kill tumors while sparing healthy tissue. These nanoparticles will also deliver corrective genes to treat genetic disorders and inhibit viral infections or cancers. The project targets diseases like hemophilia, cancer, and viral infections.
Researchers have developed nanoparticles that can detect tumors using standard MRI equipment, allowing for earlier diagnosis. The particles can also deliver cancer-fighting drugs directly to malignant tumors, promising more effective treatment options.
Dendrimers have shown promise for precisely delivering drugs to their targets inside the body, but high concentrations can be toxic. Researchers discovered that engineering dendrimers in particular ways can prevent this damage and make them better at what they do.
Researchers found that ceria nanoparticles with zirconium and gold improve oxygen storage and release, leading to more efficient catalytic converters. This technology holds promise for a cleaner future.
Researchers at Purdue University have developed a method to create DNA-based structures using magnetic nanoparticles and restriction enzymes. By clipping the DNA 'wires' into smaller pieces, they aim to reduce production costs and increase efficiency in electronic devices.
Researchers have developed a method to assemble nanoparticles using DNA molecules, enabling targeted delivery of drugs and contrast agents to cancer cells. The approach uses dendrimers, star-like synthetic polymers that can carry multiple molecules, and allows for rapid synthesis and self-assembly of nanoparticle complexes.
Researchers developed a novel antiviral treatment using RNA interference to inhibit respiratory syncytial virus (RSV) infection in mice. The treatment, administered as a nasal drop or spray, successfully suppressed the virus's NS1 protein, preserving the host's natural antiviral defense.
Researchers have developed a self-cleaning coating that can be permanently integrated into fabrics, reducing the need for dry cleaning. The coating uses silver nanoparticles to repel dirt and water, making it easier to clean clothes with less water and frequency.
UH researchers aim to create N-PMR at one terabyte per square inch, extending magnetic data storage growth rate for 10 to 15 years. The technology will allow for recording on individual crystallites, overcoming the superparamagnetic limit threatening industry growth.
Professor Ken Donaldson proposes the creation of a new discipline, nanotoxicology, to study the potential harmful effects of nanoparticles. The importance of nanotechnology is debated, but its adverse impacts need to be studied to ensure sustainable development.
Researchers at Temple University are developing metal oxide nanoparticles using ferritin protein to remove toxic metals like Chromium-6 and Technetium-7 from lakes, rivers, and groundwater. The nanoparticles can be activated by visible light, reducing chromium from hexavalent to trivalent, making it easier to filter out.
Researchers at the University of Illinois at Urbana-Champaign have developed a new silicon-based photodetector that is sensitive to ultraviolet light. The device uses nanoparticles dispensed from silicon wafers, which efficiently couple with UV light and produce electrical current.
Zinc sulfide nanoparticles with a disordered crystal structure exhibit increased stiffness due to constant strain, potentially impacting other properties such as strength and elasticity. The researchers' findings emphasize the importance of considering the entire particle, rather than just its bulk structure.
Researchers have developed an iron oxide nanoparticle that can outline brain tumors and other lesions for up to five days under MRI, providing a new imaging marker. This contrast agent has the potential to assist in image-guided brain surgery and improve diagnosis of neurological disorders.
Researchers have developed a novel method to create well-defined nanostructured carbons using polyacrylonitrile (PAN) as a precursor. The technique provides significant advantages over existing methods and has potential applications in energy storage/conversion devices and display technologies.
New electron microscopes will allow scientists to determine the chemical identity of individual atoms in crystalline materials, leading to insights into material properties and potential advances in technology. The instruments will also aid in understanding phenomena such as brittle fracture of steels and chemistry of catalytic nanopar...
A recent study led by University of Rochester Medical Center professor Günter Oberdörster investigates the link between nanotechnology and human health. The research suggests that nano-sized particles may accumulate in the body and cause harmful inflammation, potentially leading to brain damage or central nervous system disorders.
Researchers at Harvard University developed world's smallest lasers for faster computers, while nanotechnology shows promise in cleaning up industrial sites and removing environmental pollutants. New biological sensors could lead to improved diagnostics and noninvasive imaging techniques.
Researchers at Pacific Northwest National Laboratory create single-enzyme nanoparticles (SENs) that remain active for up to 143 days, thanks to their protective caging. The nanostructure preserves the enzyme's shape and allows it to interact with substrates, enabling applications in toxic waste cleanup, biosensing, and medicine.
Researchers developed nanoparticles that can target and break down chlorinated organic solvents, such as trichloroethylene, in groundwater. The particles can move easily through soil pores and reach underground pockets of contamination, reducing cleanup costs and improving effectiveness.
New Jersey Institute of Technology chemists create a cheap, usable field test for detecting pollutants in water, air, and food. The test uses nanotechnology to concentrate materials and identify trace pollutants, paving the way for lab-on-a-chip devices that can be used by workers or homemaker to quickly detect toxic chemicals.
Research at UC Davis explores the effects of ocean nanoparticles and vehicle emissions on atmospheric conditions. The study aims to develop models for measuring and predicting nanoparticle transients in the atmosphere.
Scientists at UC Davis create a novel fluorescent assay for detecting pesticides on a chip, utilizing lanthanide oxide nanoparticles as a reporter. The approach has the potential to improve pesticide detection in environmental testing and other fields.
Nanoparticles are designed to detect specific molecules and transport them using an electric field, allowing for accurate sensing. The device uses microscopic needles to take up tissue fluid and mix it with nanoparticles, which then move the samples to a detection area.
Researchers developed a method to create well-defined carbon nanoparticles using polyacrylonitrile copolymers. The approach enables the production of discrete carbon nanostructures with applications in energy storage/conversion devices and display technologies.
A new study by Southern Methodist University researchers has found that nanoparticles, specifically buckyballs, can cause significant brain damage in fish within 48 hours. The study's lead author suggests further testing and assessment of the risks and benefits of these nanoparticles before their widespread use.
Rigoberto Advincula, a UH professor, receives the Doolittle Award for his presentation and development of scientific content in his paper on polymer adsorption phenomena. The award is significant to researching new materials with practical applications in adhesives, coatings, and lubricants.
The device captures aerosol particles with an electrical field, charging and trapping them to destroy bioagents. Smart nanoparticles catalyze oxidation to completely deactivate organisms.
Researchers are developing functional nanoparticles that can be linked to biological molecules, enabling rapid analysis of biopsy tissue from cancer patients. These nanoprobes using quantum dots can monitor the effectiveness of drug therapy and deliver controlled amounts of drugs into genetically classified tumor cells.