Articles tagged with Nanoparticles
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.
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.
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.
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.
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.
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.
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.
A team of researchers has developed a novel lung cancer treatment using nanoparticle cluster bombs, which have shown promise in treating cancerous lung cells. The new delivery system could potentially be used to target cancer cells while leaving healthy cells alone.
Researchers at the Weizmann Institute developed a novel nanotube composed of nanoparticles, offering tailored properties for various applications. The tubes' unique characteristics enable design of future sensors and catalysts.
Researchers used advanced imaging and modeling techniques to study near-field behavior in metal nanoparticles. They found that arrays of nanoparticles scatter light at much smaller angles, making them suitable for two-dimensional devices such as optical chips.
Researchers at Purdue University have created tiny magnetic rings that can store information at room temperature and are self-assembled, promising a new approach to non-volatile computer memory. The nanorings' magnetic states can be switched by applying a magnetic field, paving the way for faster and more affordable computer memories.
Researchers at Rutgers-Newark are developing new nanoparticle structures that combine organic and inorganic materials. The team's innovative approach may lead to more efficient solar-energy conversion cells and devices capable of detecting pollutants.
Researchers found that zinc sulphide nanoparticles change their crystal structure when wet, becoming more ordered. This effect could help identify extraterrestrial rocks and has implications for sensing technology.
Researchers at the University of Central Florida have discovered that engineered nanoparticles can extend the lifespan of brain cells by three- to four-fold, allowing them to live up to 123 days. The study also suggests that these nanoparticles may preserve function and potentially treat age-related disorders such as Alzheimer's disease.
Germanium nanoclusters can now be coated with polymers, making them stable enough to be processed as plastics. This innovation expands the possible uses of semiconductor nanoparticles, including potential applications in displays and tiny building blocks.
Functional nanoparticles are being developed for molecular imaging, cancer treatment, and tissue engineering. Scientists can engineer nanoparticles to have multiple functions, including tagging proteins or genetic sequences in a process called multiplexing.
Dr. Nie constructs smart nanoparticle probes to recognize DNA sequences and genetic mutations, enabling early cancer diagnosis and personalized medicine. The nanobeacons can profile multiple genes and proteins simultaneously, allowing for individualized cancer treatments based on molecular differences.
Researchers used radiation to activate receptors in tumor blood vessels, enabling targeted delivery of anti-cancer drugs. The approach showed promising results in reducing side effects and delaying tumor growth.
Researchers at UMass developed a method to create robust capsules from nanometer-sized particles and make them water-soluble by shining light on them. The study also found that nanoparticles can be functionalized with tailored properties, such as luminescence, and that larger particles win in assembly competitions.
Researchers develop a novel method to assemble nanoparticles using non-uniform AC electric fields, allowing for the creation of ordered structures with desired properties. This process can be used to manufacture nanoscale tools and devices, including sensors and photonic devices.
A non-invasive imaging technique has been developed to detect plaques beginning to form in blood vessels, according to researchers from WashU Medicine. The technique uses nanoparticles to target growing capillaries and visualize plaque development, with potential applications for early cancer detection as well.
A new nanoparticle coating developed by researchers at Washington University in St. Louis mimics the natural properties of dolphin skin to prevent biofouling on ship hulls. The coating's complex surface features make it difficult for marine organisms to attach, reducing friction and drag.
Researchers have developed nanoparticles that can absorb all visible light but reject invisible light, increasing the efficiency of solar cells. This technology has the potential to make solar energy dirt cheap to produce and competitive with fossil fuels.
Hydrogel nanoparticles provide a foundation for creating self-assembled periodic structures that can transmit specific wavelengths of light. By controlling the de-swelling process, the researchers can tune the colors to one-nanometer steps over a wavelength range of more than 200 nanometers.
Scientists at the University of Illinois have developed a family of fluorescent silicon nanoparticles in various sizes and colors, which can be used for electronic displays, flash memories, and biomedical imaging. The particles are photostable and bright, allowing for non-invasive detection and study of biological phenomena.
Researchers at Northwestern University have developed a method to create triangular nanoprisms in large quantities, which can be used as new diagnostic labels for detecting biological weapons and diseases. The nanoparticles' unique optical properties make them a promising building block for detection science.