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Materias / palabras clave: cellular membranes, inorganic membranes, polymeric membranes; Technology: Chemical technology: Chemical engineering

Background/Aim: Prevention of inflammation and alveolar bone atrophy is very important in oral surgery. The aim of this study was to compare the use of two osteoplastic bio-resorbable membranes in order to prevent inflam...

OBJETIVO: estudar a colonização bacteriana do canal cervical em gestantes com trabalho de parto prematuro ou com ruptura prematura de membranas. MÉTODOS: foram avaliadas 212 gestantes com trabalho de parto prematuro o...

ABSTRACT Background and Aims Prelabor rupture of membranes is a significant obstetric complication with serious maternal and neonatal consequences. Hypertensive disorders of pregnancy are among the leading contributors t...

OBJETIVO: identificar os fatores obstétricos e neonatais associados ao desfecho de displasia broncopulmonar em pacientes com amniorrexe prematura no pré-termo. MÉTODOS: foram analisados 213 prontuários do Instituto F...

Vascular calcification arises from osteogenic transdifferentiation of vascular smooth muscle cells (VSMC) driven by disordered calcium signaling. Sarcoplasmic/ER calcium ATPase 2 (SERCA2) maintains intracellular calcium ...

30 patients, 10 female, 20 male has been included in this study. In 15 cases high-flux polysulfon and in 15 patients cuprophan membranes are used. Cα ion level of dialisate was 1.5 mmollL for both groups. Following one ...

A novel full-atom multiscale method, combining different computational approaches and aimed to describe diffusion of multiple ions in anion exchange membranes (AEM), is presented. The method is used to evaluate diffusion...

The aim of this study was to evaluate parasitism kinetics and tissue lesions in the first week of infection by Neospora caninum in dogs fed Gallus gallus chorioallantoic membranes (CMs) previously infected in ovo. Five t...

Background and aim Membranes for guided bone regeneration should have a mechanical structure and a chemical composition suitable for mimicking biological structures. In this work, we pursue the development of periosteum-...

"Ultrafiltration membranes are increasingly used in potabilization to remove viral particles. This removal is controlled by electrostatic repulsion, attachment and size exclusion. The effect of electrostatic interaction ...

Abstract Zeolite membranes exhibit considerable potential for gas separation; however, two critical challenges (low permeation flux and scaling-up fabrication) continue to hinder their practical implementation. Here, we ...

Phenol compounds, such as propofol and thymol, have been shown to act on the GABAA receptor through interaction with specific sites of this receptor. In addition, considering the high lipophilicity of phenols, it is poss...

Electrospinning is a technique that allows the preparation of nanofibers from various materials. Chitosan is a natural and abundant easily obtained polymer, which, in addition to those features, proved to be biocompatibl...

Good air tightness of filter membranes is necessary for opening excavation chamber under high pressure. To improve the value of air tightness, one should understand the pore structure and permeability change of filter me...

The current technology for lithium extraction from brines is recognized both for its techno-economic disadvantages and its environmental impacts. We have synthesized, characterized, and evaluated particles based on lithi...

Effects induced by the incorporation of lipid II (LII) molecule into phosphatidylglycerol (PG) membranes were studied by Raman microspectroscopy. Spectral behavior of multilayer vesicles in liquid crystalline and gel pha...

Abstract The soil bacterium Pseudomonas putida injects toxic proteins into neighbouring competitors, including resilient phytopathogens, using the Type VI secretion system (T6SS). The secretion of toxins endows P. putida...

The widely distributed pollutant tributyltin (TBT) was analyzed in different environmental samples (waters and sediments) combining preconcentration on a nylon membrane, excitation–emission fluorescence matrices direct...

The catholyte-free zero-gap electrolyzer is a promising design for the electrochemical conversion of CO2 to formate at industrial scale, offering low cell voltages and high product concentrations. However, its large-scal...

In this research , microwave ray absorbing coating materials had been prepared which work within ( X - band ) frequency i.e 3 cm wavelength . The coating materials were prepared from a mixture of pigmented materials such...

A fluid mosaic model is presented for the gross organization and structure of the proteins and lipids of biological membranes. The model is consistent with the restrictions imposed by thermodynamics. In this model, the p...

"This chapter presents the already used polymeric membranes and the potential candidates for the CO2 acid gas separation. Mainly, this work describes the characteristics of each membrane and the differences according to ...

Nanoporous iron oxide ceramics were studied for the removal of virus contamination from water. Supported and unsupported iron oxide nanostructured hematite was fabricated by a green chemistry route from ferroxane nanopar...