Articles tagged with Nanoparticles
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
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Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Using a bioinspired approach, researchers mimicked magnetotactic bacteria to synthesize ferromagnetic nanoparticles with desirable magnetic properties. The team successfully produced cobalt-ferrite nanoparticles, which have more desirable magnetic properties than magnetite.
A team led by Byron Brehm-Stecher is investigating the potential of silver nanoparticles to improve food safety. They aim to develop applications such as antimicrobial fabrics and surfaces, which could help kill foodborne pathogens and enhance shelf life.
Purdue University researchers found that manufactured nanoparticles, known as Buckyballs, do not affect microbes that break down organic substances in wastewater. The study's lead author notes that the microbes' resiliency to high Buckyball levels is an important finding for assessing environmental behavior of nanomaterials.
Researchers warn of unforeseen environmental and health consequences of nanosilver in consumer products, as simple experiments show nanoparticle silver can leach into waterways. Improved product labeling is proposed to increase public awareness.
Researchers used nanotechnology to target tumors in rabbits, achieving a 1,000-fold reduction in chemotherapy dose while slowing tumor growth. The nanoparticles delivered a fungal toxin called fumagillin directly to growing blood vessels, inhibiting tumor expansion.
Physiologists investigate nanoparticles' potential to cause diseases like atherosclerosis and kidney stones. Researchers are exploring how nanoparticles interact with cells and tissues to understand their role in these conditions.
The review article reveals that nanominerals exhibit a range of physical and chemical properties depending on size and shape, influencing earth systems in complex ways. This shift in understanding has significant implications for fields like environmental science and geology.
Researchers discover nanominerals have a significant impact on Earth's systems, influencing climate, ecosystems and human health through their unique properties. Nanoparticles play a crucial role in the lives of ocean-dwelling phytoplankton, affecting carbon cycling and global temperatures.
Researchers developed a DNA-guided method for controlling nanoparticle assembly, enabling precise manipulation of materials. Scientists also made progress in understanding the 'pseudogap' phenomenon in high-temperature superconductors, which could lead to improved superconductor design.
Researchers discovered that materials like silica behave as ductile as gold at the nanoscale due to surface atom dominance. Nanoparticle size and morphology affect ductility and tensile strength.
Inhalation of diesel exhaust induces stress response in brain activity, altering information processing. Researchers found that even short exposure can cause changes in brain waves, with effects lasting after subjects leave the room.
Researchers at NIST developed a new microscope design that tracks nanoparticles in solution as they move in three dimensions. This technology will help optimize nanoparticle assembly processes for better control and design of nanotech devices.
Researchers at UNC Chapel Hill have created silica nanoparticles that store and release nitric oxide to kill bacteria effectively. This approach avoids the issue of controlling NO release with small molecules, which can be toxic to healthy cells.
Nanoparticles have been shown to enhance the performance and stability of liquids when exposed to electric fields, leading to potential applications in miniature camera lenses, cell phone displays, and other microscale fluidic devices. The findings could enable new types of heat transfer systems that don't require a pump.
Researchers used astronomy technology to develop a system that provides more precise images of single molecules tagged with nanoprobes, allowing for detailed information about molecular binding and gene sequences. The technology enables high-speed detection and identification of individual molecules at nanometer resolution.
Researchers at CCNY and Rice University have developed a low-cost, 'green' technique for making antimicrobial paints. The method uses silver nanoparticles to create an antibacterial coating that can be applied to various surfaces, offering a fresh defense against germs in homes and workplaces.
Scientists have successfully used magnetic fields and nanoparticles to deliver healthy cells to targeted sites in blood vessels. The research, done in animals, may lead to a new method of delivering cells and genes to repair injured or diseased organs in people.
A team of researchers from Case Western Reserve University, VA and NASA Glenn Research Center has unveiled a method for developing mechanically-reinforced polymer nanocomposites. The approach uses a process to assemble nanoparticles into a three-dimensional network before filling it with a polymer, resulting in compatible materials. Th...
Researchers have developed a method to control the size of nanoparticles, allowing for mass production and diverse applications. This breakthrough has significant implications for fields like medicine, renewable energy, and cosmetics, where nanoparticles can be tailored to perform specific tasks.
Scientists are discovering that aquatic nanoparticles influence natural and engineered water chemistry differently than similar materials of a larger size. The review considers nanoparticles formed by natural processes in water and as unintended consequences of human activity, such as mining or water treatment.
Researchers develop nanoparticles that can be controlled by electromagnetic pulses to release therapeutic drugs directly into tumors, a potential breakthrough in cancer treatment. The system uses heat-sensitive DNA tethers to release drugs, allowing for customizable and targeted delivery.
The National Institutes of Health has awarded Clemson University researchers nearly $1 million to develop polymer dot nanoparticles for tracking single molecules in live cells. This technology could help determine the body's defenses against viruses and bacteria, as well as pinpoint cancer cells for more effective treatment.
A team of researchers developed a new class of electrocatalyst that outperforms pure platinum in reducing oxygen. The catalyst features nanoparticles with a platinum-rich shell and a copper-cobalt core.
Engineered nanomaterials can still penetrate deep inside the body, posing a risk to human health. The science suggests that exposures will occur, and understanding toxicity is crucial for resolving concerns about potential harm.
Eva Harth's system delivers drugs to specific intracellular compartments, including the brain, and reaches tumors in the lungs, brain, and spinal cord. It also enables delivery of peptides, proteins, DNA, and smaller chemical compounds.
Researchers are exploring nanoscale materials to mimic the architecture of grass and photosynthesis for efficient solar energy production. Tiny nanoparticles can be embedded in everyday products like house paint and roof tiles to create sustainable solar cells.
Researchers at EPFL have developed a nanoparticle vaccine that delivers vaccines more effectively with fewer side effects, at a fraction of the cost. The technology targets dendritic cells to trigger a strong immune response, and has potential applications for diseases like hepatitis and malaria.
UWM researchers have devised a method for creating hybrid structures by coating CNTs with aerosol nanoparticles, producing low-cost
A novel 3D cell culture model has been developed to study the selective uptake of nanoparticles in brain tumors. The model uses a combination of tumor aggregates and normal brain tissue slices, allowing researchers to investigate tumor cell invasion into brain tissue.
Researchers at Clemson University have created a method to improve fluorescent nanoparticle longevity, enabling the tracking of molecule motion in living cells. This technology could reveal details on virus invasion and protein operation within the body.
Researchers at Georgia Tech and Emory University developed a nanoparticle that can detect and image trace amounts of hydrogen peroxide in animals. This innovation could lead to the creation of a simple diagnostic tool for detecting early stages of various diseases.
Silicon nanoparticles can significantly enhance the performance of solar cells by improving power output and reducing heat. By integrating a high-quality film of silicon nanoparticles onto silicon solar cells, researchers achieved a 60% improvement in power performance in the ultraviolet range of the spectrum.
Researchers developed a single-particle technique to study small portions of semiconductor material at the nanoscale. The study found that 'deep traps' are formed in plastic semiconductors, which can decrease efficiency and cause defects. This breakthrough could lead to improved devices made from these materials.
Researchers have developed a biodegradable nanoparticle delivery system that uses magnetic forces to target specific cells in the body. The system has shown promise in reducing cell proliferation and delivering anti-growth genes to stents, which could help maintain blood flow.
Researchers at the University of Chicago and Argonne National Laboratory have created a nanothin sheet of nanoparticles that boasts surprising strength, rivalling that of an ultrathin sheet of plexiglass. The material's characteristics make it a promising candidate for use in pressure sensors and chemical filters.
Researchers at UCSB discovered a method to extend nanoparticles' in vivo lifetime by attaching them to red blood cells, potentially revolutionizing drug delivery. The attachment allows particles to evade phagocytosis and remain in circulation for up to 120 days.
Researchers have discovered that attaching polymeric nanoparticles to red blood cells increases their in vivo lifetime. This breakthrough could lead to new treatments for cancer, blood clots, and heart disease by providing sustained release of drugs.
Researchers have developed a unique nanoparticle that can safely deliver a compound to the eye, blocking an enzyme that contributes to glaucoma. This non-toxic tool offers high penetration rates and little patient discomfort, making it a promising treatment option.
Scientists discovered bacteria in a flooded mine emit proteins that accumulate and trap metal nanoparticles, forming large aggregates that reduce mobility. This process may lead to new bioremediation strategies for toxic metals like arsenic and lead.
Researchers at Lawrence Livermore National Laboratory discovered that certain bacteria excrete proteins that aggregate metal nanoparticles, reducing their toxicity and mobility. This phenomenon could lead to the development of protein-based methods for cleaning up polluted environments on a larger scale.
Researchers at Purdue University have developed a method to deliver nanoparticles into cells using bacteria, enabling precise positioning of sensors, drugs, or DNA. This approach overcomes hurdles in delivering cargo to cell interiors, offering potential for gene therapy and disease detection.
Researchers at UCLA have successfully manipulated nanomaterials to create a new drug-delivery system for anticancer drugs. The system uses silica-based nanoparticles to deliver water-insoluble drugs into human cancer cells, increasing their effectiveness and reducing toxicity.
Researchers have developed a new, biocompatible MRI contrast agent using manganese oxide nanoparticles that produces clear images of mouse brains. The agent allows for high-contrast views of brain anatomy and has potential applications in diagnosing brain diseases such as Alzheimer's and Parkinson's.
Researchers have developed targeted nanoparticles incorporating siRNA that can slow tumor growth without eliciting toxicities. The nanoparticles' structure and biological function are characterized using physicochemical and biological methods, offering insights into designing more effective carriers.
Researchers use nanotechnology to enhance nerve cell regeneration, bypassing inhibitory environments. Magnetic nanoparticles create mechanical tension, while aligned nanofibers provide a bioactive matrix for growth.
Researchers developed a method to penetrate plant cell walls using nanotechnology, enabling simultaneous delivery of DNA and chemicals. This breakthrough enables precise control over gene expression in plants, opening up new possibilities for agricultural biotechnology.
Researchers at the University of Missouri-Columbia are studying the effects of silver nanoparticles on wastewater treatment systems. The study aims to determine how these particles interact with bacteria used for water purification and assess their potential environmental impact.
Researchers at the University of Buffalo have developed a device that can rapidly detect infectious viruses in biological samples. The innovation uses nanoparticles to transport viral particles to specific locations, allowing for quick detection and paving the way for an 'on-the-spot' virus detector.
Researchers at the University of Massachusetts have found that nanoparticles can cause DNA damage in breast cancer cells, increasing the risk of cancer. The study suggests that smaller particles are more likely to enter cells and cause toxicity, highlighting the need for further research on nanoparticle safety.
A Princeton University-led research team has developed nanoparticles that can deliver medicine deep into the lungs or infiltrate cancer cells while leaving normal ones alone. The particles are too large to pass through normal cells but can target rapidly growing solid tumors and remain in the lungs, maximizing the effectiveness of inha...
A team of researchers from NIST and Northwestern University used advanced techniques to classify water in cement, distinguishing between physically bound and adsorbed water. This discovery has significant implications for predicting concrete properties and improving its durability.
Researchers at UC San Diego discovered that iron oxide nanoparticles can be toxic to nerve cells and interfere with their signal-transmitting extensions. The nanoparticles were initially investigated as a possible way to manipulate nerve cells remotely with magnetic force.
Researchers developed nanoparticles that can label and track stem cells used in medical treatments, offering a new way to monitor tumors and diagnose cardiovascular problems. The technology uses MRI scanning to detect the presence of labeled cells, allowing for more accurate measurements and better understanding of each cell type's role.
The Virtual Journal of Nanotechnology Environment, Health & Safety (VJ-Nano EHS) offers the most comprehensive knowledge base on peer-reviewed information focusing on nanomaterial impacts available to-date. ICON's online journal improves access to scientific findings on the benefits and risks of nanomaterials.
Researchers at Purdue University found that adding manufactured fullerenes to soil had no adverse effects on microorganisms or soil function. The study's results provide baseline data for future research on the impact of various types and sizes of nanomaterials on the environment.
A team of researchers from six universities, led by the US Department of Defense, is awarded $6 million to explore precise biological assembly for studying quantum physics in nanoparticle arrays. This research aims to produce fundamental understanding of quantum electronic systems and could impact future electronics.
A team of 9 scholars from six universities will use precise biological assembly techniques to study quantum physics in nanoparticle arrays. This research could lead to new mechanisms for computing, signal processing and sensing.
Scientists at UTMB and University of Michigan develop direct electrical link between nerve cells and photovoltaic nanoparticle films, enabling light-stimulated nerve-signaling devices. This breakthrough could lead to creation of a nanoparticle-based artificial retina with unprecedented flexibility, compactness, and reliability.
Japanese scientists produce peanut-shaped nanoparticles comprising two different sulfur-containing substances, palladium sulfide and cobalt sulfide. The unique structure gives rise to different physical and chemical properties.
Researchers created dual-modality microbeads to identify disease biomarkers, allowing for faster and more efficient detection of viruses and proteins in human blood and urine. The new technology can analyze very low concentrations of target molecules, enabling diagnosis of diseases like Alzheimer's with high sensitivity.