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.
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.
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.
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.
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 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.
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.
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.
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 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.
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.
Palladium nanoparticles have been shown to repair atomic dislocations in their crystal structure after experiencing intense strain. Researchers discovered that these nanoparticles function like the human body healing from an injury, allowing them to mend and regain their original state.
Scientists have developed a multiresponsive nanosurfactant that can manipulate liquid droplets using magnetic fields, electric fields, and light. The droplets can be assembled into complex structures and mixed to create chemical reactions.
Researchers have developed a new way of organizing nanostructures that enhances Raman spectroscopy, allowing for the detection of molecules at low concentrations. The technique uses silver nanoparticles on nanowires to boost sensitivity, enabling the detection of compounds in nanomolar or even picomolar concentrations.
Researchers created a nanomedicine platform that uses near-infrared imaging to detect tumors and kill residual cancer cells using phototherapy. The platform has shown great precision and thoroughness in cancer treatment, with promising results in mouse models.
Researchers designed nanoparticles that mimic a cell surface protein to bind and destroy viruses, including herpes simplex virus and human papillomavirus. The new nanoparticles have shown irreversibility binding and lethal deformations to various viruses in vitro experiments.
Rice University scientists found that porous particles of calcium and silicate show potential as building blocks for various applications. When assembled into micron-sized sheets and pellets, the arrays held up better under pressure, with bigger individual nanoparticles being 120% tougher than smaller ones.
Scientists from Friedrich Schiller University Jena have developed nanoparticles that transport antibiotics more efficiently to their destination, killing off pathogens without problems. The particles are able to penetrate thick layers of mucus and biofilms, making them a promising solution against antibiotic resistance.
Researchers at MIT have developed nanobionic plants that can produce dim light for nearly four hours using nanoparticles. This breakthrough technology aims to revolutionize indoor lighting and could one day transform trees into self-powered streetlights.
Researchers have successfully infused watercress and other plants with luminescent properties using nanoparticles, creating a glowing effect similar to 'Avatar.' The glowing plants emit light without any external power source and can be turned off by adding a compound.
Researchers from NC State University have found a simpler way to deposit magnetic iron oxide nanoparticles onto silica-coated gold nanorods, creating multifunctional nanoparticles with useful magnetic and optical properties. The new technique uses an approach called heteroaggregation, resulting in highly uniform nanoparticles that can ...
Researchers have proven the effectiveness of copper nanoparticles as a catalyst for organic synthesis reactions, which is an ideal alternative to toxic heavy metal catalysts like palladium. The use of copper nanoparticles offers numerous benefits, including lower costs, improved selectivity and yields, and recyclability.
Researchers discovered that coating nickel nanoparticles with silica shells fragments the material, creating a small core of oxidized nickel surrounded by smaller satellites embedded in a silica shell. The technique may prove useful for increasing the surface area of nickel available for catalyzing chemical reactions.
Researchers at the University of Konstanz have successfully synthesized Europium(II) oxide nanoparticles, a ferromagnetic semiconductor with promising properties for spin-based electronics. The team developed a novel two-stage process to produce high-quality and anisotropic EuO-nanoparticles with tunable magnetic properties.
Researchers at Northwestern University have captured on video the collision and fusion of organic nanoparticles for the first time. This unprecedented view enables scientists to study dynamic phenomena in nanoscale materials systems.
Researchers studied ceria nanoparticles using probe molecules and a complex ultrahigh vacuum-infrared measurement system, gaining insights into their surface chemistry. The findings suggest that surface defects and oxygen vacancies enhance the high catalytic activity of these nanoparticles.
Researchers developed activatable theranostic nanoplatforms that can highlight tumor cells during surgery using near-infrared fluorescence. These nanoparticles also demonstrated effective phototherapy to eliminate hard-to-remove tumors without harming healthy tissue.
Researchers at MIT have created a new delivery system for the CRISPR genome-editing system, using nanoparticles to target and delete disease-causing genes. The technique achieved an 80% success rate in deleting the Pcsk9 gene, which regulates cholesterol levels, resulting in a 35% drop in total cholesterol levels.
Researchers developed a bone-targeted nanoparticle that delivers chemotherapy directly to bone lesions, reducing tumor size and pain. The targeted nanoparticles showed a strong burst release of cabazitaxel and increased binding to bone compared to non-targeted nanoparticles.