A number of polymers used in the production of carriers for drug delivery applications, possessing high surface area, appropriate surface chemistry and porosity, chemical stability and low cost have been investigated. One of these promising candidates are natural polysaccharides such as alginic acid sodium salt, guar gum, xanthan gum and chitosan due to their outstanding merits. They are simila...

high purity fluorapatite (FA) with rod-like and spherical-like morphology was synthesized via sol-gel method. Chemical characterization of FA powders was done by XRD and FTIR analyses. Crystallite samples were calculated using Scherer method. Morphology of FA powders was investigated with TEM and SEM images. The results revealed that increasing the time of hydrolysis of phosphate sols significa...

A simple method is reported for the preparation of silver nanoparticle (AgNP) embedded pH-responsive hydrogel microparticle catalyst via Michael addition gelation and in-situ nitrate (AgNO3) reduction. The AgNP-hydrogel microsphere exhibited an efficient reduction pollutants like 4-Nitrophenol (4-NP) Congo red (CR) under acidic medium with turn over frequency (TOF) ~170 h–1 ~124 respectively. I...

Introduction: Primaquine is one of the essential medicines used to treat malaria due Plasmodium vivax. acts by eradicating hypnozoites in liver, and its effect dependent on drug concentrations target tissue. The present study aimed prepare primaquine nanoparticle formulation using chitosan as carriers improve on-target delivery liver. Methods: Primaquine-loaded nanoparticles were prepared ionic...

Colloidal gelation has been extensively studied for the case of purely attractive systems, but little is understood about how colloidal gelation is affected by the presence of repulsive interactions. Here we demonstrate the gelation of a binary system of oppositely charged colloids, in which repulsive interactions compete with attractive interactions. We observe that gelation is controlled by v...