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.
Researchers have developed a revolutionary new crop protection technique using gene-silencing technology and nanotechnology to protect plants against pests and diseases. The BioClay spray has been shown to give plants virus protection for at least 20 days following a single application.
Researchers directly observed how metallic nanoparticles activate catalytic processes by identifying defect sites on the surface of single particles. These findings validate a longstanding hypothesis and provide insights into controlling catalyst reactivity.
Researchers at Duke University have created a new method for printing conductive films using silver nanowire inks, eliminating the need for heat. The resulting printed electronics can be used in various applications such as solar cells, displays, and implantable bio-electronic devices.
Researchers at Aalto University developed a plasmonic nanolaser that operates at visible light frequencies and uses dark lattice modes, allowing for ultrafast and tiny coherent light sources. The nanolaser uses silver nanoparticles arranged in a periodic array, which radiate in unison to produce high-intensity laser light.
This review explores the potential of nanoparticle drug delivery systems to improve solubility, permeability, and stability of ophthalmic drugs. The development of these systems may offer a solution to the limitations of traditional topically administered formulations.
Researchers at Oregon State University developed a new method for sintering nanoparticles using intense pulsed light, enabling faster and more efficient production of advanced flexible electronics. The breakthrough allows for larger areas to be processed in seconds, reducing the need for high-temperature equipment.
Researchers discovered that nanoparticles, resembling caterpillars, trigger immune system activation when internalized. To counteract this detection, three possible strategies are proposed: modifying the coating, understanding absorbed proteins, or attracting natural inhibitors.
Researchers developed RNA nanoparticles that selectively bind to HER2-overexpressing breast tumors, eliminating MED1 expression and sensitizing them to tamoxifen treatment. The nanoparticles also reduced cancer stem cell content, a promising strategy for treating advanced metastatic breast cancer.
Researchers used 3D imaging to study nanoscale details of nickel-cobalt particles, revealing a unique 'Swiss cheese' structure that increases surface area and reactivity. The findings could lead to more efficient and cost-effective catalysts for fuel cells.
Researchers have developed a simple and inexpensive method for stabilizing vaccines at room temperature using nanoparticles, polymers, or sugar. This approach could improve vaccine storage and distribution, especially in remote areas with limited refrigeration, reducing the cost of vaccination programs by nearly 80%.
Researchers found that normal atmospheric conditions lead to the formation of oxygen-enriched silica nanoparticles with magnetic properties. These reactive oxygen species have been linked to cancer and may explain the known carcinogenicity of silica dust. The study provides a possible explanation for the high toxicity of silica dust.
Researchers propose a nanosized dipole photomotor controlled by a laser, capable of directed motion at record speed. The device has potential applications across the natural sciences and medicine, including delivering drugs to diseased tissues.
Researchers at UMass Amherst developed polymer-stabilized droplet carriers that can recognize and encapsulate nanoparticles for transport in a cell. These 'nanoparticle taxicabs' pick up particles on one surface and drop them off on another, representing the first successful translation of biological processes in materials science.
A new gene-editing system successfully cured a genetic blood disorder in living mice, offering a minimally invasive treatment for beta thalassemia and sickle cell disease. The technology significantly decreases unwanted gene mutations and uses FDA-approved nanoparticles to deliver PNA molecules.
Researchers developed a new type of nanoparticle vaccine that effectively vaccinated mice against one dengue virus serotype. The vaccine targets only one strain, but its development could pave the way for vaccines against all four serotypes, potentially offering better protection against life-threatening disease.
Researchers have developed a highly active and stable catalyst for ammonia synthesis under low reaction temperatures. The flat-shaped Ru nanoparticles anchored on Ca(NH2)2 exhibit high catalytic performance and long-term stability.
The team aims to find and design more benign nanomaterials using advanced computational methods. They will use the XSEDE network to study nanoparticles, including their interactions with human health and the environment.
Researchers analyzed 300 published works on silver nanoparticles and wastewater treatment, finding no adverse effects at current concentrations. The team suggests that moderate or high concentrations could pose a problem in decades to come.
Kytai Nguyen, a nationally recognized professor of bioengineering at UTA, has overcome numerous challenges in her life and career. She was awarded the inaugural Embracing Challenge Award from Materials Today magazine for her perseverance and contributions to new knowledge in materials science and engineering.
Researchers at the University of Texas at Arlington have developed a novel microwave-induced photodynamic therapy that can target deeply situated tumors. The treatment uses microwaves to activate photosensitive nanoparticles, producing tissue-heating effects that ultimately lead to cell death.
Researchers at the University of Melbourne develop a novel approach to assemble nano-objects into complex architectures using polyphenol-coated building blocks. The technique enables the creation of 3D superstructures with enhanced chemical diversity and structural flexibility.
University of Illinois researchers have developed a method to quantify drug delivery from nanoparticles inside a cell, providing new insights into the efficacy of therapy and mechanisms underlying cellular uptake. This breakthrough could lead to more effective treatments by controlling and manipulating drug release.
The study found that silver nanoparticles' protein corona reduces their toxicity by forming silver sulfide nanocrystals, which are non-toxic. In the absence of a soft corona, Ag2S crystals form, precipitating toxic silver ions.
Researchers have demonstrated silicon nanoparticles that can manipulate and switch light, enabling ultrafast all-optical signal processing in optical communication systems. The nanoantennas can transmit, reflect, or scatter incident light in a specified direction, showing potential for high-speed data transmission.
Researchers developed nanoparticles that congregate at injury sites to form blood clots. These particles can cut bleeding time in half and reduce total blood loss, making them a potential game-changer for treating internal bleeding.
Scientists have developed a neuron-targeting nanoparticle that can deliver RNA to damaged brain cells, reducing the impact of chronic conditions like depression and memory problems after TBI. The treatment showed promise in an animal model, with 80% reduction in protein associated with neuronal cell death.
Researchers create ginger-derived nanoparticles that efficiently target the colon, reducing acute colitis, preventing chronic colitis, and enhancing intestinal repair. The particles retain key active constituents found naturally in ginger, showing promising therapeutic effects against inflammatory bowel disease and cancer.
Researchers create functional coatings with microorganism-resistance, self-cleaning and anti-reflecting properties. The new materials have potential for various applications, including seagoing vessels, mobile phone screens and spectacle lenses.
Physicists from UT Arlington are developing a multifunctional platform to integrate imaging and photo-induced cancer therapy in a single, portable device. The BIGLITE device aims to improve the efficacy and safety of photo-induced therapies by precisely killing cancer cells while sparing healthy ones.
Researchers at the University of Copenhagen have developed a method that kills cancer cells using nanoparticles and lasers. The treatment has been tested on mice and shown to be effective in destroying cancer tumors without causing major side effects.
Scientists at the University of Basel have created nanoparticles that can serve as efficient contrast agents for magnetic resonance imaging (MRI). These smart nanoparticles produce significantly more contrast than traditional contrast agents and respond to specific environments.
Researchers at Duke University have created gallium nanoparticles with a unique phase coexistence phenomenon, where the particle core is solid while the outer layer remains liquid. This discovery could lead to breakthroughs in nanotechnology applications, including ultraviolet sensors and molecular sensing devices.
Selecta Biosciences' synthetic vaccine particles have been shown to induce antigen-specific immune tolerance, mitigating the formation of anti-drug antibodies and improving the efficacy and safety profile of biologic drugs. The technology has potential applications in treating rare diseases, allergies, and autoimmune diseases.
University of Pennsylvania researchers have created nanoparticles that use the acidity of tooth decay to kill bacteria in dental plaque and prevent cavities. The treatment, which combines hydrogen peroxide with acid-sensitive nanoparticles, was shown to be highly effective at disrupting biofilms and killing bacteria.
Researchers created complex reconfigurable microrobots that can be manufactured with high throughput, mimicking the behavior of bacteria to deliver drugs or perform precise operations. The robots are soft, flexible, and motor-less, using electromagnetic fields and heat to control their movement.
Scientists from Kazan Federal University and Louisiana Tech University created a 'smart dress' for oil-degrading bacteria by coating them with magnetic nanoparticles. The modified bacteria retained their ability to form biofilms, crucial for attaching to oil droplets in natural environments.
Researchers investigate physical properties of nanoparticles to enhance therapeutic delivery, focusing on size as a critical factor. The study provides valuable insights for generating uniform nanoparticles with high yields and targeted cell uptake.
Researchers have discovered a 'smart' organic nanoparticle called PEARLs that uses heat and light to target and ablate tumours with greater precision. This innovation addresses two bottlenecks in photo-thermal therapy, enabling more effective treatment of cancer with minimal damage.
A new method for extracting, enriching and identifying chemical warfare agents from oils and organic liquids has been developed, using nanoparticles to capture the chemicals. The method can identify agents at low concentrations, overcomes challenges of detecting water-repellent agents, and has potential to save lives.
Researchers have discovered a new class of high thermal conductivity materials that can improve cooling for power electronics and other applications. The silicon dioxide nanoparticles, coated with ethylene glycol, can conduct heat at potentially higher efficiency than existing materials.
Researchers have developed a spinach-like, nanoparticle juice that can help doctors get a better look at the human gastrointestinal tract. The drink, made from chlorophyll-based nanoparticles, has shown promise in improving imaging techniques such as photoacoustic and PET imaging.
A team of University of Florida researchers has successfully used light to grow gold nanoprisms, enabling better control over the growth process. The discovery has significant implications for pharmaceuticals, medical equipment, and solar panels.
Researchers developed nanoparticles that target and deliver chemotherapy drugs to metastatic cancer tumors using radiation guidance. The approach exploits overexpression of P-selectin molecules in human cancers, allowing for selective tumor penetration.
Researchers at University of Houston discovered a graphene-based Janus amphiphilic nanosheet that achieves 15 percent tertiary oil recovery at a low concentration of 0.01 percent, comparable to expensive methods. This breakthrough makes the process more environmentally friendly and cost-effective.
A Northwestern University research team has developed a tool to rapidly test millions of nanoparticles at once, similar to gene chips in biology. The combinatorial library approach enables scientists to quickly identify the best nanoparticle size and composition for various applications.
Researchers discovered two unique structures for gold nanocluster Au144(SR)60, a previously known material, using advanced data analytics. This finding suggests the existence of polymorphic nanoparticles with different properties.
Researchers have designed DNA frames to connect nanoparticles into precisely structured lattices, enabling the creation of nanomaterials with tailored properties. The team's method uses DNA origami to self-assemble particles into desired shapes, reducing dependence on particle modification.
Researchers at Okinawa Institute of Science and Technology Graduate University have discovered a unique copper-silver nanoparticle structure resembling the Japanese glass fishing floats, known as ukidama. The 'ukidama' structure has properties that could be utilized in biomedical devices and nanotechnology.
Australian researchers have developed a method to embed light-emitting nanoparticles into glass without losing their properties. The new 'hybrid glass' combines nanoparticles' luminescence with glass' transparency and versatility, opening up possibilities for ultra-high-tech applications like biological sensing and 3D displays.
Researchers found that dentin's mechanical coupling between collagen protein fibers and mineral nanoparticles allows it to withstand extreme forces. The nanostructure design enables dentin to last longer than synthetic filling materials.
A U of T Engineering team has designed a simpler way to keep therapeutic proteins localized for long periods. They found that proteins can be released over several weeks without encapsulation by controlling electrostatic interactions between proteins and nanoparticles.
Researchers at MIT have developed an algorithm that can build complex DNA nanoparticles automatically, allowing for a broader range of applications in fields such as vaccine development and gene editing. The algorithm, known as DAEDALUS, can build any type of 3D shape with a closed surface, including shapes with holes.
Researchers developed a dual nanoparticle delivery system for piperlongumine and TRAIL, demonstrating increased therapeutic efficacy in vitro and in vivo. The system sensitizes cancer cells to TRAIL, leading to higher apoptotic rates and improved anti-cancer effects.
Researchers at ORNL have demonstrated a scalable method to produce semiconducting nanoparticles using bacteria-fed sugar at temperatures below 150 degrees Fahrenheit. This approach reduces production costs by approximately 90 percent compared to conventional methods, making it attractive for applications in electronics, displays, solar...
Researchers at Lomonosov Moscow State University develop nanoparticles that can efficiently penetrate into cancer cells, emitting light to aid in early diagnosis. The particles can also be used as targeted drug delivery systems, offering a promising approach for cancer treatment.
A new gene therapy has been developed to repair lungs damaged by chronic allergic asthma, reducing inflammation and improving airway structure and function. The study used a novel biodegradable platform to deliver the thymulin gene therapy, showing effective results in mice with experimental asthma.
Research highlights the effects of nanoparticles on platelet activation and plasmatic coagulation, a complex process essential for human life. Studies demonstrate that nanoparticles can alter hemostasis in various diseases, such as cancer and diabetes, emphasizing the need for thorough testing and regulation.
Scientists created a way to make tissues and organs clearer by linking molecules together, leaving lipids that cause opacity intact. This breakthrough allows tracking of nanoparticles at depths of over 1 millimeter, enabling better understanding of interactions with tumors and organs.
Researchers developed a technique to visualize lithium ion battery discharge mechanisms in nanosized iron-oxide material, revealing the intercalation and conversion reactions that occur during lithiation. The study provides insights into how to improve battery performance and increase their longevity.
Researchers found that six genes, including four from a peroxiredoxin family, were affected by titanium dioxide nanoparticles in human HeLa cells and monkey kidney cells. The effect was seen after 24-hour exposure, with changes of about 50% in enzyme expression.