Synthesis of zinc oxide nanoparticles by dc arc dusty plasma

Anticancer Activity of ZnO Nanoparticles against Human Small-Cell Lung Cancer in an Orthotopic Mouse Model

“…ZnO is a II-VI semiconductor with a direct band gap of approximately 3.37 eV (28), and its properties are thought to depend on particle size, shape, charge, and added impurities that alter semiconductivity (29)(30)(31). For potential application in vivo, we homogenized ZnO particles synthesized by dc arc dusty plasma (32)(33)(34), considering that in intravenous injection, particle size and dispersion stability are critical to avoiding lethal adverse events such as venous thrombosis. Thus, we prepared ZnO nanoparticles without particles over 100 nm, not only to minimize the risk of venous thrombosis, but also to maximize delivery efficiency (17).…”

The Role of Nitrogen Dopants in ZnO Nanoparticle-Based Light Emitting Diodes

“…To fabricate nitrogen-doped ZnO NPs, we used an arc vapor deposition method (ULVAC Inc., Model No-GE-970, Chigasaki, kanagawa, Japan). We previously detailed the arc vapor method process and mechanism for ZnO NPs synthesis [ 19 , 20 ]. Briefly, zinc metal (Nilaco Corporation, Chuo-Ku, Tokyo, Japan.…”

“…The plasma generated by the current arc caused a reaction with the Zn and dry air. In the reaction, O 2 and N 2 radicals were generated from the dry air by the arc plasma and incorporated into nanoparticulate crystalline Zn from the surface of the Zn source [ 19 ]. The resulting reaction produced ZnO NPs of various sizes, which incorporated nitrogen atoms.…”

“…Our group has successfully developed nitrogen-doped ZnO NPs using a DC arc plasma gas evaporation method. Additionally, we have developed several protocols for the fabrication of ZnO NPs with both p-type and n-type conductivity [ 19 , 20 , 21 ]. Though it contained the influence of many boundaries, Itohara et al, reported the p-type conductivity (mobility 5~7 cm 2 /Vs and carrier concentration + 2.0 × 10 12 ~ + 2.7 × 10 12 cm −3 ) of nitrogen-doped ZnO NPs films [ 22 ].…”

An overview of recent progress in dental applications of zinc oxide nanoparticles

“…Different physical, chemical, and biological (green chemistry) methods used to produce uniform ZnO nanostructures can be found in the literature. 37,38 ZnO NPs can be prepared by several methods, resulting in nanostructures of different shapes such as solvent-based ultrasonic irradiation, 39 hydrothermal, 40 microemulsion, 41 physical vapor deposition, 42 arc plasma, 43 thermal evaporation, 44 solvothermal, 45 microwave synthesis, 46 wet chemical, 47 solgel, 48 and green methods like plant extracts. 49,50 Various size and shape particles of ZnO were obtained via altering reaction conditions such as the concentration of either additive, the molar ratio of the starting materials, the pH of the reactants and the temperatures.…”