Oil-water emulsion formation is common in oil fields. The a problem which causes an increase production costs and decrease quality. Therefore, demulsifier formulation needed to overcome these problems. use of household waste, particularly disposable diapers, promising alternative. One the substances contained diapers sodium polyacrylate super absorbent polymer, known as polyacrylate. substance ...

The effect of bio-fertilizers and super-absorbents on the modification water-deficit stress was studied in castor. A field experiment conducted with a split-plot design based completely randomized block three replications. first factor included four levels (70, 100, 130, 160 mm evaporation pan Class) main plot; sub-factor application bio-fertilizer treatments (Azospirillum, Citrobacter, Azospir...

A super-absorbent hydrogel was developed by crosslinking of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and acrylic acid with hydroxypropyl methylcellulose (HPMC) for controlled release drug delivery of captopril, a well known antihypertensive drug. Acrylic acid and AMPS were polymerized and crosslinked with HPMC by free radical polymerization, a widely used chemical crosslinking method...

The aim of this study was to develop a novel multifunctional nanoparticle, which encapsulates SPION and Gemcitabine in PLGA ± PEG to form multifunctional drug delivery system. For this aim, super paramagnetic iron oxide nanoparticles (SPIONs) were simultaneously synthesized and encapsulated with Gemcitabine (Gem) in PLGA ± PEG copolymers via W/O/W double emulsification method. Optimum size and ...

A new composite absorbent with multifunctional and environmental-friendly structures was prepared using chitosan, diatomite and polyvinyl alcohol as the raw materials, and glutaraldehyde as a cross-linking agent. The structure and morphology of the composite absorbent, and its adsorption properties of Hg(II) in water were characterized with Fourier transform infrared (FT-IR) spectra, scanning e...

A single extraction and a single clean-up procedure was developed for multi-residue analysis of pesticides in non-fatty vegetables and fruits. The method involves the use of a high capacity absorbent polymer for water as a drying agent in extraction from wet food samples and of a graphitized carbon column for clean-up. A homogeneously chopped food sample (20 g) and polymer (3 g) were mixed to a...