Abstract Green nanocomposite hydrogels (ST-PHEMA/GO) comprised of starch and 2-Hydroxyethyl methacrylate (HEMA) reinforced with different ratios graphene oxide (GO) were prepared via gamma radiation induced crosslinking polymerization. The chemical structure morphology the crystallinity studied by FTIR FE-SEM, AFM, TEM XRD, respectively. swelling behavior claimed was verified versus time pH-dep...

objective(s): researchers have intended to reformulate drugs so that they may be more safely used in human body. polymer science and nanotechnology have great roles in this field. the aim of this paper is to introduce an efficient drug delivery vehicle which can perform both targeted and controlled antibiotic release using magnetic nanoparticles grafted ph-responsive polymer.  methods: fe3o4 na...

The effect of ionic and non-ionic excipients and additives as modulators of swelling and erosion kinetics and verapamil HCl release from guar-based matrix tablets was investigated. Tablet dissolution, erosion and water uptake studies were carried out using a modified USP 23 Apparatus 2 method. The kinetics of gel strength and texture development were studied by textural analysis. Near linear dr...

The use of ultrasound to enhance the transport phenomena in food processes has been well recognised in recent times. The objective of this study was to evaluate the effect of sonication on hydration rate and pasting profile of navy beans. The hydration kinetics for control and ultrasound assisted soaking was mathematically described using mechanistic (Fickian diffusion) and empirical (Peleg's e...

Generalized (non-Markovian) diffusion equations with different memory kernels and subordination schemes based on random time change in the Brownian process are popular mathematical tools for description of a variety non-Fickian processes physics, biology, earth sciences. Some such (notably, fluid limits continuous walks) allow either kind description, but other ones do not. In present work we d...

Studies of dynamic and equilibrium swelling of ionic gels are important in understanding the diffusion of physiologically important fluids in materials for site-specific controlled drug delivery applications. The dynamic and equilibrium swelling properties of dry glassy poly(2-hydroxyethyl methacrylate-co-methacrylic acid) and poly(2-hydroxyethyl methacrylate-co-acrylic acid) polymeric networks...

The aim of this study is to formulate a novel ophthalmic nanosuspension (ONS), an alternative carrier system to traditional colloidal carriers for controlled release (CR) of acyclovir (ACV). In the present study, ONS is employed to avoid some of major disadvantages of colloidal carriers systems such as instability in cul de sac and short half life by increasing efficiency of drug encapsulation ...

abstract                                                                               the new drug delivery systems have been developed, which can remain in the stomach for prolonged period of time. the effervescent floating tablet is one of these systems. iron deficiency anaemia is a common disease in the world. ferrous sulphate is the most common ferrous preparation used to treat and prevent...

Osmotically-assisted membrane processes (OAMP) are separation technologies that leverage osmotic gradients to recover water from brine. Accurate modeling of the solute-coupling effects for transmembrane transport is integral development and subsequent optimization OAMP unit operations. In literature, multicomponent in commonly linearized, species fluxes computed using binary solution-diffusion ...