The occurrence of health-relevant contaminants in water has become a severe global problem. For treating heavy-metal-polluted water, the use zeolite materials been extended over last decades, due to their excellent features high ion exchange capacity and absorbency. aim this study was assess effect heavy metal uptake one purified (PCT) two non-purified clinoptilolite tuffs (NPCT1 NPCT2) aqueous...

If g∈H∞, the integral operator Sg on Hp, BMOA and Bp(Besov) spaces, is defined as Sgf(z)=∫0zf′(w)g(w)dw. In this paper, we prove three necessary sufficient conditions for to have closed range Hp(1≤p<∞), Bp(1<p<∞).

Gastric acidity is the main factor affecting viability of probiotics in the gastrointestinal tract (GIT). This study investigated the survival in simulated gastrointestinal fluids of Bifidobacterium longum Bb-46 encapsulated in interpolymer complexes formed in supercritical carbon dioxide (scCO(2)). Bacteria were exposed sequentially to simulated gastric fluid (SGF, pH 2) for 2 h and simulated ...

The preparation, characterization, and in vitro release of 5-aminosalicylic acid (5-ASA) from methacrylic acid (MAA)/perlite composites (APC) prepared via a sol-gel route are reported. The free-radical graft polymerization of methacrylic acid (MAA) onto perlite particles was studied experimentally. The grafting procedure consisted of surface activation with 3-(trimethoxysilyl) propyl methacryla...

The gastrointestinal toxicity associated with aceclofenac can be reduced by condensing its carboxylic acid group with methyl esters of amino acids like histidine and alanine to give amide linkage by the Schotten-Baumann method. Physicochemical characterization of the conjugates was carried out by various analytical and spectral methods. The synthesized conjugates were also subjected to in vitro...

Alginate-based composite sponges were developed as carriers to prolong the gastric retention time and controlled release of curcumin-loaded self-microemulsifying drug delivery systems (Cur-SMEDDS). Liquid Cur-SMEDDS was incorporated into a solution made up of a mixture of polymers and converted into a solid form by freeze-drying. The ratio of alginate as the main polymer, adsorbent (colloidal s...

In large and dense mobile ad hoc networks, position-based routing protocols can offer significant performance improvement over topology-based routing protocols by using location information to make forwarding decisions. However, there are several potential security issues for the development of position-based routing protocols. In this paper, we propose a secure geographic forwarding (SGF) mech...

Two unique approaches were proposed to strengthen the bond between glass fiber reinforcement polymer (GFRP) and RC concrete surfaces. The two bonding materials are epoxy (EP) geopolymer (GPP) with different ratios of short fibers (SGF). experimental program includes seven reinforced (RC) beams that have same cross-section (150 mm × 200 mm) 1500 in length. first beam is control (B0-Control). nex...

Background: Mixed chimerism (MC) frequently occurs in patients with severe aplastic anemia (SAA) after allogeneic hematological stem cell transplantation (allo-HSCT).Methods A retrospective study on 287 SAA who underwent allo-HSCT between October 2012 and January 2020 was conducted to explore the outcomes, risk factors treatment options for MC. Among AA excluded Fanconi (FA), Congenital dyskera...

The purpose of this study is to develop novel intestinal-specific drug delivery systems with pH sensitive swelling and drug release properties. Methacrylic-type polymeric prodrugs were synthesized by free radical copolymerization of methacrylic acid, poly(ethyleneglycol monomethyl ether methacrylate) and a methacrylic derivative of N-(4-hydroxyphenyl)-2-(4-methoxyphenyl) acetamide in the presen...