نتایج جستجو برای: nanosized particle
تعداد نتایج: 177061 فیلتر نتایج به سال:
Wittmaack (2007) did not agree with our suggestion (Oberdörster et al. 2005) that particle surface area is a more appropriate dose metric than particle mass or particle number when evaluating dose–response relationships of nanoparticle-induced pulmonary inflammation. According to his understanding of nanotoxicology and based on his calculations, he found particle number to work best as a dose m...
The nanosized silicon powder has been produced by reduction of silica with magnesium in an argon medium using both the mechanically activated self-propagating high-temperature synthesis and direct mechanochemical investigated X-ray phase analysis, Infrared spectroscopy, electron scanning microscopy, energy dispersive spectroscopy. optimal Mg:SiO2 ratio found to provide minimum content contamina...
Synthesizing polymer nanoparticles have required large amounts of surfactants, which increase environmental pollution. It is indispensable to develop a synthesis method for that does not require surfactants. In the present study, methylcellulose (MC) gel was used as polymerization field prepare with particle diameter less than 100 nm. MC biocompatible hydrophilic and low load. This reactor carr...
On the basis of their uses in jet fuels and munitions, the most likely scenario for aluminum nanoparticle (NP) exposure is inhalation. NPs have been shown to be capable of penetrating deep into the alveolar regions of the lung, and therefore human alveolar macrophages (U937) with human type II pneumocytes (A549) were cultured together and exposed to NPs dispersed in an artificial lung surfactan...
Nanosized maghemite particles were synthesized, precoated (with dimercaptosuccinic acid) and surface-functionalized with anticarcinoembryonic antigen (anti-CEA) and successfully used to target cell lines expressing the CEA, characteristic of colorectal cancer (CRC) cells. The as-developed nanosized material device, consisting of surface decorated maghemite nanoparticles suspended as a biocompat...
Nanosized hydroxyapatite (HA) is a promising candidate for a substitute for apatite in bone in biomedical applications. Furthermore, due to its excellent bone bioactivity, nanosized strontium-substituted HA (SrHA) has aroused intensive interest. However, the size effects of these nanoparticles on cellular bioactivity should be considered. In this study, nanosized HA and SrHA with different dime...
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