Articles tagged with Nanoparticles
Scientists at the University at Buffalo have developed heated magnetic nanoparticles that can selectively target and destroy tumors with significant amounts of heat under low-magnetic fields. The new technology has potential benefits over other treatments, including minimal side effects and deeper penetration into hard-to-reach body pa...
A new study found that combining nanomaterials with nutrient runoff from fertilized cropland can intensify harmful algal blooms in wetlands. The nanoparticles accelerated the growth of algae, reducing dissolved oxygen levels and creating toxic conditions for aquatic organisms.
The new foam reacts to sound waves of high and low frequencies, cutting the level of noise transmission by 20-22 dB. The material is cheaper and easier to apply than aerogel, with improved acoustic characteristics obtained through additional impregnation with nanoparticles.
Researchers at Ural Federal University have discovered that controlling intrinsic defects in nanoparticles can enhance their energy conversion capabilities. This breakthrough could lead to improved solar cell efficiency by up to 50%.
A Northwestern University team developed a novel nanolaser that changes colors by controlling the spacing among metal nanoparticles, inspired by chameleons' skin structure. The laser is robust, tunable, reversible and highly sensitive to strain.
Researchers have found a way to convert nanoparticle-coated microscopic beads into lasers smaller than red blood cells. These microlasers can constantly and stably emit light for hours at a time, even when submerged in biological fluids. The innovation opens up the possibility for imaging or controlling biological activity with infrare...
Researchers develop nanosystem that selectively targets cancerous tumors using gelonin protein toxin, cloaked in extracellular vesicles from tumor cells. The system releases toxic protein into cancer cell cytosol, killing the cell without harming healthy tissue.
Researchers have designed a coating infused with antimicrobial agents and mimicking the patterned diamond-like texture of shark skin. The coating effectively killed over 95% of E. coli and 80% of Staphylococcus aureus bacteria when exposed to UV light, making it a potential solution to combat hospital infections.
Researchers from the U.S. Army Research Laboratory and Texas Tech University demonstrated a 30-percent enhancement in TNT detonation velocity by adding novel aluminum nanoparticles. The AIH-coated nanoparticles showed improved reactivity due to their unique morphological feature, leading to enhanced explosive performance.
Researchers at Penn State have developed a new nanoparticle-based drug delivery system that targets cancer cells using mechanical properties of diseased cells. The 'mechanotargeting' approach outperforms existing 'chemotargeting' strategy in delivering drugs to targeted cells.
Silver nanoparticles have been found to be highly toxic to Danio fish embryos, with flat particles being more toxic than spherical ones. The research suggests that the toxicity of nanosilver is due to the presence of nanoparticles themselves, not just silver ions.
A novel separation technique using density gradient ultracentrifugation is introduced for colloidal nanostructures. The method demonstrates versatility in separating nanoparticles according to their unique properties.
Researchers at MIT have developed an AI-based method to design multilayered nanoparticles with desired properties, potentially speeding up the development of new materials. The technique uses computational neural networks to learn how a nanoparticle's structure affects its behavior, allowing for faster prediction and design.
Sheereen Majd aims to improve nanoparticle drug delivery by targeting diseased cells and minimizing off-targeting. Her research combines existing technologies to create a precise and stable carrier system, promising efficient delivery of bioactive molecules to specific sites in the body.
Researchers developed nanoparticles carrying temozolomide and a bromodomain inhibitor to target glioblastoma tumors. The particles, coated with transferrin, successfully delivered large doses of chemotherapy drugs directly to the tumor site, reducing side effects.
The ETH Zurich researchers developed nanovalves that can control individual nanoparticles in liquids using electric forces. This technology enables sorting and manipulation of tiny particles such as metal, semiconductor, virus, liposomes, and antibodies.
A new method for studying semiconductor nanoparticles has been developed using the magneto-optic effect, allowing for non-invasive analysis without altering the structure. The method was successfully tested on cadmium telluride nanoparticles and showed promising results.
A team of chemists at Penn State developed a designer's toolkit to construct complex nanoparticles using a simple mix-and-match process. They created a library of 47 distinct nanoparticles with varying materials and shapes, overcoming the bottleneck in laboratory synthesis.
A Brazilian research team has developed a novel technique to produce high-performance silver nanoparticles with 32 times the bactericidal capacity of existing materials. The new method uses pulsed laser irradiation and reduces production costs, making it economically feasible for large-scale applications.
Researchers have created nanoparticles that can convert near-infrared light into visible light, potentially increasing the efficiency of solar cells. The particles are coated with organic dyes that act as antennas to gather and reemit light, raising the possibility of capturing a broader spectrum of sunlight.
Researchers investigated the interaction between induced membrane vesicles and target cells, finding that proteinase K treatment inhibits internalization. The study suggests that artificial microvesicles can be designed to specifically deliver anti-tumor drugs to cancer cells.
Researchers discovered that 2D cadmium telluride sheets can spontaneously fold into nanoscrolls when attached with specific organic molecules. This effect may be used in the development of new devices, including optic materials and light-emitting matrices.
Researchers have developed biomarkers to detect harmful environmental contaminants in wildlife, enabling faster development of diagnostic tools. Additionally, scientists have created a more sustainable method for producing biodiesel from low-cost cooking oil waste using nanoparticles.
Dr. Christian Marín-Muller developed a microRNA treatment for pancreatic cancer and founded Speratum CR, a biotech company with the goal of creating effective therapies. The company has successfully completed preclinical studies and is planning to initiate its first human trial.
The study found that the magnetic field orientation of magnetosomes is slightly tilted, deviating from the chain direction. This tilt may explain the helical shape of magnetosome chains, a crucial aspect of magnetotactic bacteria's internal compass construction.
Researchers at Texas A&M University have discovered a new class of clay nanoparticles that can direct human stem cells to become bone or cartilage cells. These nanoparticles, similar to flaxseed in shape, can grow tissue from stem cells in the absence of growth factors.
Researchers have developed a tool using carbon nanoparticles to detect antidepressants in urine samples, improving analytical properties and enabling early disease diagnosis. The new method enhances the ability to adsorb, making it fast and easy to extract antidepressants from urine, even at low concentrations.
Researchers developed nanoparticles that deliver microRNA-29b to lung tumors, potentially improving treatment outcomes. The technology overcomes limitations of traditional delivery methods and demonstrates promising results in mouse models.
A KAIST team created a technology to print heat patterns on a micron scale for controlling biological activities remotely. They achieved this by integrating precision inkjet printing with bio-functional thermo-plasmonic nanoparticles.
Scientists have developed a method to combine up to eight different metals in a single nanoparticle, creating stable alloys with useful applications in the chemical and energy industries. The new technique uses shock waves to heat and cool the metals, producing homogeneous nanoparticles with broad catalytic properties.
Research shows that nanoparticles can cause DNA damage to developing brain cells when exposed to cellular barriers. This damage is dependent on astrocytes and has implications for the development of potential drug targets in treating neurodegenerative conditions.
Researchers at KAUST have developed a printable magnetic substrate that can be used to produce radio frequency devices with adjustable capacity and frequency tuning. The innovative technology uses iron-based nanoparticles in an ink-like substance to create antennas with improved performance and lower costs.
Dr. Juhyun Lee is using a $154,000 grant from the American Heart Association to develop a microscope that can capture 3-D motion and track gene development in zebrafish. This research could lead to identifying heart abnormalities and diagnosing congenital conditions for potential treatment with gene therapy.
Scientists at the University of Maryland have created nanoparticles composed of up to eight distinct elements, greatly expanding the landscape of nanomaterials. This breakthrough enables a wide range of applications in catalysis, energy storage, and bio/plasmonic imaging.
Researchers develop a heat-shock process to form high entropy alloyed nanoparticles from multiple elements. The resulting nanoparticles exhibit homogeneous crystal structures and potential applications as catalysts in emerging energy technologies.
Researchers have developed opto-thermoelectric nanotweezers that can control particles at the nanoscale and analyze them in-situ. This technology has the potential to lead to new discoveries in nanotechnology, individual health monitoring, and biological systems.
Researchers at DESY's NanoLab found that nanoparticles with a large number of edges are more efficient in catalytic reactions. The study revealed that the different facets of the nanoparticles become inactive due to growing oxide islands, leaving active sites for the reaction.
Researchers at NYU Tandon School of Engineering have made a discovery that can flag the barest presence of viruses or proteins, as well as detect airborne chemical warfare agents. The breakthrough enables biosensors tailored to specific applications, from wearable sensors for soldiers to nanoparticle drug uptake.
Researchers have developed low-cost, low-tech solutions to improve water quality in municipal tanks by circulating water through shower head-like attachments. Additionally, they've found effective adsorbents using polymer-coated magnetic nanoparticles to remove micropollutants from water, which can be reused and restored.
Researchers at BWH discovered that cell sex influences nanoparticle uptake, response to reprogramming techniques, and paracrine factors. These findings may help develop sex-specific nanomedicines for targeted drug delivery applications.
Researchers at Wake Forest Baptist Medical Center have developed a fluorescing nanoparticle that can find tumors and generate heat to destroy cancer cells. The nanoparticles, called Hybrid Donor-Acceptor Polymer Particles (H-DAPPs), successfully localized and killed breast cancer in mice, showing potential for future human trials.
Scientists have developed diagnostic tools to improve the controllable and selective fabrication of nanomaterials. New discoveries reveal that molecular precursors govern the synthesis of carbon nanotubes in a purely carbon electric arc. This breakthrough opens the door to improved predictive modeling of nanosynthesis.
A Houston Methodist researcher has made a groundbreaking discovery by sharing his recipe for making nanoparticles. The new method eliminates the need for expensive equipment and allows laboratories worldwide to produce these tiny particles. This breakthrough could lead to more efficient delivery of biotherapeutic drugs and new treatments.
Scientists from ITMO University have developed a new treatment for internal bleeding using magnetically-driven nanoparticles containing thrombin. The treatment reduces overall blood loss by 15 times and accelerates local clot formation.
Researchers found that in vitro testing is no help in predicting which nanoparticles successfully enter cells in living animals. A new DNA barcoding technique allows testing of over 100 nanoparticles simultaneously in a single animal, accelerating the development of gene therapies.
Scientists at University of Illinois Chicago and Lawrence Berkeley National Laboratory have developed a technique to pinpoint chemical reactions inside lithium-ion batteries. This allows them to understand how batteries operate and identify ways to optimize performance.
Researchers created a 3D dynamic model of light-nanoparticle interactions using mining hardware, showing particles lose symmetry and optical properties become heterogeneous when exposed to short intense laser pulses. This finding could enable control of light on a nanoscale for ultrafast information processing devices.
A new imaging technique uses a super sharp needle to nudge individual nanoparticles into different orientations, capturing 2D images to reconstruct 3D pictures. This method allows for the observation of defects in nanostructures like semiconductors and proteins, which can lead to better characterization and control of their production.
A research group from ITMO University combined a nanoantenna with a light source in a single nanoparticle, generating, enhancing and routing emission. The scientists discovered that the emission can be enhanced if its spectra match with Mie-resonant mode, making them efficient light sources at room temperature.
A new composite material made from antibacterial copper nanoparticles has shown excellent antibacterial resistance and durability. The material was tested on cotton and polyester fabrics, which showed strong resistance to bacterial infections even after being washed multiple times.
A team of researchers at Kaunas University of Technology has created a new generation indoor air cleaning device using advanced methods for breaking down pollutants. The eco-friendly technology will clean the air from nanoparticles and gas pollution, improving human health.
Scientists from NUS and international research team create a novel method for deep brain stimulation, utilizing upconversion nanoparticles to deliver visible light deep into the brain. The innovation enables researchers to uncover valuable insights about brain functions with less invasive methods.
The new CU Boulder e-skin has sensors embedded to measure pressure, temperature, humidity and air flow. It can be easily conformed to curved surfaces and is fully recyclable at room temperature, making it a valuable material for diverse medical, scientific and engineering fields.
Researchers have developed a non-invasive method for stimulating the brain using nanoparticles that absorb near-infrared light and emit visible photons, allowing for control of specific brain cells. This breakthrough enables the treatment of conditions such as seizures and fear memories with minimal invasiveness.
A US research team has successfully imaged excited quantum dots at multiple orientations using a new technique called single molecule absorption scanning tunneling microscopy (SMA-STM). This allows for the visualization of defects in quantum dots, which can be characterized and precisely controlled to improve their performance.
Researchers at Tokyo Institute of Technology have discovered a highly efficient ammonia synthesis catalyst that functions at low temperatures, exceeding the efficiency of conventional ruthenium and iron catalysts. The catalyst's unique structure expands surface area to improve performance.
Researchers have created defect-free ZnO quantum dots with record-long luminescence lifetimes and resistance to chemical and biological environments. The new nanoparticles are biocompatible and safe for human use, offering hope for numerous applications in biology and medicine.
A study published in Science reveals that ultrafine aerosol particles can intensify rainfall in the Amazon region by enhancing cloud formation and thunderstorms. The presence of these nanoparticles, which are too small to play a significant role in polluted areas, has a substantial impact on the hydrologic cycle in the Amazon.
Researchers developed a universal vaccine to combat influenza A viruses, producing long-lasting immunity in mice and protecting them against seasonal flu vaccines. The nanoparticles target the stalk of the HA protein, offering universal protection against various influenza viruses.
Researchers at the University of California, Riverside, have created a new, highly efficient catalyst material that could significantly reduce the cost of producing fuel cells. The material, made from porous carbon nanofibers embedded with cobalt, outperforms industry-standard platinum-carbon systems but at a fraction of the cost.