Experiments on the Electrical Conductivity of PEG 400 Nanocolloids Enhanced with Two Oxide Nanoparticles.

This paper aims to provide some insights into the pH and electrical conductivity of two classes of nanocolloids with PEG 400 as the base fluid. Thus, nanoparticles of two oxides-MgO and TiO-were added to the base fluid in 5 mass concentrations in the range 0.25-2.

Experimental Study on Electrical Conductivity of Several [C4mim][BF4] Ionic-Liquid-Based Nanocolloids.

Nanocolloids are receiving considerable attention in regard to their properties and future applications, especially as heat transfer fluids and phase change materials for energy storage. Additionally, studies on ionic liquids and ionic-liquid-based nanocolloids are at the forefront of research preoccupations. This study aims to shed light on applications of nanocolloids based on [C4mim][BF4] ionic liquid, giving insight into the electrical conductivity of [C4mim][BF4] ionic liquid, as well as three types of nanoparticles suspended in this particular ionic liquid, namely AlO (alumina), ZnO (zinc oxide) and MWCNT (multi-walled carbon nanotubes).

Thermophysical Properties of Nanocolloids and Their Potential Applications.

This Special Issue is a continuation of the previous successful Special Issue, entitled "Future and Prospects in Nanofluids Research", co-edited by the present Editor and dedicated to the topic of "Thermophysical Properties of Nanocolloids and Their Potential Applications" [...

Heat Transfer Analysis of Nanocolloids Based on Zinc Oxide Nanoparticles Dispersed in PEG 400.

Cooling and heating are extremely important in many industrial applications, while the thermal performance of these processes generally depends on many factors, such as fluid flow rate, inlet temperature, and many more. Hence, tremendous efforts are dedicated to the investigation of several parameters to reach an efficient cooling or heating process. The interest in adding nanoparticles in regular heat transfer fluids delivered new fluids to the market, the nanofluids.

Are European marketed acyclovir 5% cream products similar? Comparison with EU and US reference product.

Objective: The aim was to perform a comparative evaluation of composition and release performance of multisource acyclovir 5% creams.

Significance: The outcome was analyzed in relation with the principles of the Topical drug Classification System (TCS).

Methods: The drug release testing (IVRT) was based on selection of an inert artificial membrane and a medium providing sink conditions, and utilizing the vertical diffusion cells.

Rheological and release measurements of manufactured acyclovir 5% creams: confirming sensitivity of the release.

Previous evaluation of marketed acyclovir 5% creams using release testing (IVRT) and its correlation with the qualitative composition confirmed the discriminative characteristics of this methodology. This was in line with the principles of Topical drug Classification System (TCS). For the current research, experimental formulations were designed and prepared by applying controlled changes in manufacturing process, sources of raw materials, and amount of the excipients.

Ionic Liquids-Based Nanocolloids-A Review of Progress and Prospects in Convective Heat Transfer Applications.

Ionic liquids are a new and challenging class of fluids with great and tunable properties, having the capability of an extensive area of real-life applications, from chemistry, biology, medicine to heat transfer. These fluids are often considered as green solvents. Several properties of these fluids can be enhanced by adding nanoparticles following the idea of nanofluids.

State of the Art in PEG-Based Heat Transfer Fluids and Their Suspensions with Nanoparticles.

Research on nanoparticle enhanced fluids has increased rapidly over the last decade. Regardless of several unreliable reports, these new fluids have established performance in heat transfer. Lately, polyethylene glycol with nanoparticles has been demarcated as an innovative class of phase change materials with conceivable uses in the area of convective heat transfer.

A Review on Electrical Conductivity of Nanoparticle-Enhanced Fluids.

This review discusses exclusively the recent research on electrical conductivity of nanofluids, correlations and mechanisms and aims to make an important step to fully understand the nanofluids behavior. Research on nanoparticle-enhanced fluids' electrical conductivity is at its beginning at this moment and the augmentation mechanisms are not fully understood. Basically, the mechanisms for increasing the electrical conductivity are described as electric double layer influence and increased particles' conductance.

Electrical Conductivity of New Nanoparticle Enhanced Fluids: An Experimental Study.

In this research, the electrical conductivity of simple and hybrid nanofluids containing AlO, TiO and SiO nanoparticles and water as the base fluid was experimentally studied at ambient temperature and with temperature variation in the range of 20-60 °C. A comparison of the experimental data with existing theoretical models demonstrated that the theoretical models under-predict the experimental data. Consequently, several correlations were developed for nanofluid electrical conductivity estimation in relation to temperature and volume concentration.