INTRODUCTION Nanoparticles are being increasingly applied in dentistry due to their antimicrobial and mechanical properties. This in vitro study aimed to assess and compare the cytotoxicity of four metal oxide nanoparticles (TiO2, SiO2, ZnO, and Al2O3) on human dental pulp stem cells. METHODS AND MATERIALS Four suspension with different concentrations (25, 50, 75, 100 µg/mL) of each nanoparti...

Alumina nanoparticles (Al2O3) are one of the essential metal oxides and have a wide range applications unique physio-chemical features. Most notably, alumina has been shown to thermal properties such as high conductivity convective heat transfer coefficient. Therefore, this study is conducted integrate adsorption Al2O3 in mineral oil-based Maxwell fluid. The ambitious goal intensify mechanical ...

Recently, various nanomaterials have extensively been used to achieve sustainability goals in the construction sector. Thus, this paper presents a state-of-the-art review involving uses of different for production high-performance cementitious, geopolymer, and alkali-activated concrete composites. The effects on fresh properties, mechanical durability diverse nanoparticle-modified composites ar...

Our study has been investigated nanofluids' heat transfer performance in a wavy microchannel using theoretical and computational fluid dynamics. Al2O3, CuO, Fe2O3, TiO2 SiO2 have used the calculations as nanoparticles. Volumetric nanoparticle ratios nanofluid are 1%, 2%, 3% 4%. Outlet temperatures, Nusselt number, thermal conductivity efficency convective coefficients of nanofluids at 100, 250,...

In order to quantify and compare the uptake of aluminum oxide nanoparticles of three different sizes into two human cell lines (skin keratinocytes (HaCaT) and lung epithelial cells (A549)), three analytical methods were applied: digestion followed by nebulization inductively coupled plasma mass spectrometry (neb-ICP-MS), direct laser ablation ICP-MS (LA-ICP-MS), and flow cytometry. Light and el...

Enhanced oil recovery using nanoparticles is a promising method. However, when injected into reservoir, can block pores and cause permeability damage. Therefore, enhancing their performance to lower the damage effect crucial. This study investigated of pH alteration through carbon dioxide (CO2) injection on limestone caused by an aluminum oxide (α-Al2O3) nanofluid. The methodology involved nano...

This study analyzes the characteristics of alumina (Al2O3)/water nanofluid to determine the feasibility of its application in an air-cooled heat exchanger for heat dissipation for PEMFC or electronic chip cooling. The experimental sample was Al2O3/water nanofluid produced by the direct synthesis method at three different concentrations (0.5, 1.0, and 1.5 wt.%). The experiments in this study mea...

The global demand of the heating and cooling applications gives a larger potential to study thermal energy storage system. Phase change materials (PCM) that are used charge, store, discharge heat inferior in transfer characteristics. properties PCM can be improved by adding nanoparticles, changing orientation enclosure or both. Two-dimensional transient numerical analysis on effect Grashoff num...

Hydrogen is the key element to accomplish a carbon-free based economy. Here, first evidence of plasmonic gallium (Ga) nanoantennas provided as nanoreactors supported on sapphire (?-Al2O3) acting direct plasmon-enhanced photocatalyst for hydrogen sensing, storage, and spillover. The role plasmon-catalyzed electron transfer between Ga nanoparticle in activation those processes highlighted, oppose...