in this study, iron oxide nanoparticles (maghemite) were used to remove ni (ii) and cr (vi) from mine’s waste water. first, by using novel single step, maghemite nanoparticles (?-fe2o3) produced at room temperature, without the use of natural solvents and oxides. the average particle size of the maghemite was estimated to be 14 nm, by transition electron microscope (tem(. various factors influe...

in this paper, a novel method of producing bi-metallic alloy nanoparticles at low temperatures using hydrogen bombardment of thin films, deposited on glass substrates, is introduced. optical and morphological characteristics of the nanoparticles were extensively studied for various conditions of plasma treatment, such as plasma power density, temperature, duration of hydrogen bombardment, thick...

this work is devoted on the rheological behavior of ethylene glycol based nanofluids containing maghemtite nanoparticles. the size of these maghemite nanoparticles was measured using xrd and found to be about

Various types of CO sensors based on cerium oxide (ceria) have been reported recently. It has also been reported that the response speed of CO sensors fabricated from porous ceria thick films comprising nanoparticles is extremely high. However, the response value of such sensors is not suitably high. In this study, we investigated methods of improving the response values of CO sensors based on ...

to answer challenge of targeted and controlled drug release in oral delivery various materials were studied by different methods. in the present paper, controlled metal based drug (pd(ii) complex) release manner of β‑lactoglobulin (β-lg) nanoparticles was investigated using mathematical drug release model in order to design and production of a new oral drug delivery system for gastrointestinal ...

BACKGROUND Over the last decade safety concerns have arisen about the use of metal-based nanoparticles in the cosmetics field. Metal-based nanoparticles have been linked to both environmental and animal toxicity in a variety of studies. Perhaps the greatest concern involves the large amounts of TiO2 nanoparticles that are used in commercial sunscreens. As an alternative to using these potential...

INTRODUCTION Nanoparticles (NPs) are small entities that consist of a hydroxyapatite core, which can bind ions, proteins, and other organic molecules from the surrounding environment. These small conglomerations can influence environmental calcium levels and have the potential to modulate calcium homeostasis in vivo. Nanoparticles have been associated with various calcium-mediated disease proce...

recombinant protein purification is a kind of sensitive and expensive method in genetics engineering. genetic manipulation leads to the expression of various proteins; it should be isolated with high purity finally. differed methods for protein purification are categorized, based on cast, quality, easy work and side effect of protein. in this article, we are investigating his his-tag protein pu...

We report a new NMR relaxation time-based method for sensitive and selective dopamine detection using paramagnetic nanoparticles. The Fe(3+) species in the nanoparticles serves as both the contrast agent and the target recognition element. The results demonstrate that paramagnetic nanoparticles, similar to the more widely used superparamagnetic nanoparticles, can be integrated into relaxation b...

Recognition of different agents including chemical and biological plays important role in forensic, biomedical and environmentalfield.In recent decades, nanotechnology and nano materials had a high impact on development of sensors. Using  nanomaterials in construction of biosensors can effectively improve the Sensitivity and other features of biosensors. Different type of nanostructures includi...