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  • ceria
  • It has also been reported that the response speed of CO sensors fabricated from porous ceria thick films comprising nanoparticles is extremely high. (mdpi.com)
  • In this study, we investigated methods of improving the response values of CO sensors based on ceria and prepared gas sensors from core-shell ceria polymer hybrid nanoparticles. (mdpi.com)
  • These hybrid nanoparticles have been reported to have a unique structure: The core consists of a cluster of ceria crystallites several nanometers in size. (mdpi.com)
  • The origin of this colorimetric reaction was studied using DFT that suggests the adsorption of peroxide and oxygen molecules on ceria nanoparticles creates new states in the electronic structure leading to transitions absorbing in the visible region of the electromagnetic spectrum. (rsc.org)
  • sensor
  • Finally, improvements in sensor response were also noticed after the addition of Au nanoparticles to the thick films used to fabricate the two types of sensors. (mdpi.com)
  • detection
  • For detection, a single layer of nanoparticles was immobilized on transparent microscopic glass slides using self-assembled monolayers (SAMs) of poly(4-vinylpyridine) (PVP). (rsc.org)
  • metal nanoparticles
  • Such narrow photothermal spectra had never been seen for metal nanoparticles, either singularly or in clusters. (ecnmag.com)
  • He said the discovery opens the possibility that many metal nanoparticles could be used in biomedical and industrial applications where spectral selectivity and tuning would provide "unprecedented" precision. (ecnmag.com)
  • ROS production has been induced generally through the introduction of both metal oxide and positively charged metal nanoparticles in the cell, such as iron oxides and silver. (wikipedia.org)
  • this process initializes ROS production similar to the metal nanoparticles. (wikipedia.org)
  • Human breast carcinoma cells infused with metal nanoparticles in vitro have been shown to have an increase in morbidity with exposure to near infrared (NIR). (wikipedia.org)
  • Some common examples of platinum precursors include potassium hexachloroplatinate (K2PtCl6) or platinous chloride (PtCl2) Different combinations of precursors, such as ruthenium chloride (RuCl3) and chloroplatinic acid (H2PtCl6), have been used to synthesize mixed-metal nanoparticles Some common examples of reducing agents include hydrogen gas (H2), sodium borohydride (NaBH4) and ethylene glycol (C2H6O2), although other alcohols and plant-derived compounds have also been used. (wikipedia.org)
  • The end result was a double layer of metal nanoparticles with a small amount of glaze in between them. (wikipedia.org)
  • nanoscale
  • According to ISO Technical Standard 80004, a nanoparticle is defined as a nano-object with all three external dimensions in the nanoscale, whose longest and shortest axes do not differ significantly, with a significant difference typically being a factor of at least 3. (wikipedia.org)
  • exhibit
  • Because nanoparticles are composed of elements and compounds whose toxicity is well-studied at larger scales, they have been assumed safe even though they can exhibit wildly different properties from their larger siblings. (sfsu.edu)
  • Nanocapsules that have Ag nanoparticles on the inside and outside (double-layer nanotubes) exhibit 2x SERS intensity than those with a single layer of Ag nanoparticles (see below). (wikipedia.org)
  • Characterization
  • Recent advances in fabrication and characterization of nanoparticles have allowed more detailed research into the relationship of particle size and structure with performance benefit. (azonano.com)
  • graphene oxide
  • Examples include Using graphene oxide for applications in electronics Using nanoparticles of metal oxides, carbon nanotubes and quantum dots in photovoltaics, displays and sensors Using polymers and nanocomposites in nanolithographic patterning Langmuir-Blodgett Dip coating Spin coating Nanoparticle Pdf: Fabricating Highly Organized Nanoparticle Thin Films Hotze, Ernest M. (wikipedia.org)
  • carbon nanotubes
  • The advantages compared to ferrite or elemental nanoparticles are: Higher magnetization Higher stability in acidic and basic solution as well as organic solvents Chemistry on the graphene surface via methods already known for carbon nanotubes Several methods exist for preparing magnetic nanoparticle. (wikipedia.org)
  • probes
  • Your project will be a part of the group’s effort in creating optically bright nanoparticle probes with which a microscopic map of the morphine-active regions of the whole rat brain will be created. (edu.au)
  • chemically
  • With the advent of modern nanotechnology in the 1980s, fungi have remained important by providing a greener alternative to chemically synthesized nanoparticle. (wikipedia.org)
  • typically
  • While nanoparticles are smaller than 1 micrometer in diameter (typically 5-500 nanometers), the larger microbeads are 0.5-500 micrometer in diameter. (wikipedia.org)
  • Nanoparticles are typically difficult to deposit due to their physical properties. (wikipedia.org)
  • Platinum nanoparticles are typically synthesized either by the reduction of platinum ion precursors in solution with a stabilizing or capping agent to form colloidal nanoparticles, or by the impregnation and reduction of platinum ion precursors in a micro-porous support such as alumina. (wikipedia.org)
  • decomposition
  • Adding cerium oxide nanoparticles to fuel can help decomposition of unburnt hydrocarbons and soot, reducing the amount of these pollutants emitted in the exhaust and reducing the amount of fuel used. (azonano.com)
  • oxide
  • Cerium oxide nanoparticles can also be used as a short-term treatment for particulate filters in diesel engines. (azonano.com)
  • Nanoparticles containing nitric oxide (NO) were infused into the bloodstream of hamsters, where they helped maintain blood circulation and protect vital organs. (redorbit.com)
  • properties
  • This novel approach is counter to the established paradigm that assumes optical properties of nanoparticles are pre-set during their fabrication and stay constant during their optical excitation," he said. (ecnmag.com)
  • Silver nanoparticles have different physicochemical characteristics from the free silver ion, Ag+ and possess increased optical, electromagnetic, and catalytic properties. (wikipedia.org)
  • processes
  • The physical processes responsible for upconversion in nanoparticles are the same as those in bulk crystals on the microscopic level, although total efficiency and other ensemble effects will have unique considerations in the nanoparticle case. (wikipedia.org)
  • After passing through both treatment processes, the silver nanoparticles are eventually deposited into the environment. (wikipedia.org)
  • accumulate
  • Because water fleas (crustaceans a few millimeters long) are a food source for other aquatic species, Oberdörster expressed concern that nanoparticles could begin to accumulate throughout the food chain, affecting not just fish, but plants and other animals, including people. (sfsu.edu)
  • stability
  • Animals given the nanoparticles exhibited better cardiac stability, stronger blood flow to tissues and other measures of hemorrhagic shock recovery compared to controls receiving saline solution minus the nanoparticles," reported Dr. Friedman. (redorbit.com)
  • applications
  • 7) Presumably, she believes that the potential for safe applications of nanoparticles still exists, but that commercialization should proceed cautiously until scientific toxicological data catch up to the technology. (sfsu.edu)
  • A variety of applications where the self-assembly of nanoparticles might be useful. (wikipedia.org)
  • Coatings and thin films made from nanoparticles are being used in various applications including displays, sensors, medical devices, energy storages and energy harvesting. (wikipedia.org)
  • Platinum nanoparticles are the subject of substantial research, with potential applications in a wide variety of areas. (wikipedia.org)
  • Sizes
  • However, during the 1990s before the National Nanotechnology Initiative was launched in the USA, the new name, "nanoparticle," had become more common (for example, see the same senior author's paper 20 years later addressing the same issue, lognormal distribution of sizes). (wikipedia.org)
  • self-assembled
  • The spatial arrangements of these self-assembled nanoparticles can be potentially used to build increasingly complex structures leading to a wide variety of materials that can be used for different purposes. (wikipedia.org)
  • Effects
  • Nanoparticles can enhance the effects of traditional antibiotics which a bacteria may have become resistant to, and decrease the overall minimum inhibitory concentration (MIC) required for a drug. (wikipedia.org)
  • The light penetrating the first layer would reflect off the second layer of nanoparticles and cause interference effects with light reflecting off the first layer, creating a luster effect that results from both constructive and destructive interference. (wikipedia.org)
  • reactive
  • A strong research focus has been placed on triggering production of excessive reactive oxygen species (ROS) using nanoparticles injected into bacterial cells. (wikipedia.org)
  • The release of Ag+ leads to creation of reactive oxygen species (ROS) inside cells, which can further dissolute the nanoparticles. (wikipedia.org)