Background and Objectives: Preparation and evaluation of nanocomposite films have become prevalent in recent years. Depending on the purpose of using the film, and considering the effects and interaction effects of nanomaterial and other modifiers on the film properties, the amounts of nanomaterials and modifiers should be optimized. The effects of montmorillonite (MMT), glycerol (GL), and thei...

BACKGROUND Chitosan, a linear polysaccharide, has been recently used in biomedical applications. In vitro studies have demonstrated its effect on cellular growth and its stimulatory action on cellular layer formation. AIMS The present study aims to compare the proliferative effects of chitosan in two forms, membranous and solution forms, on Swiss 3T3 mouse embryonic fibroblasts. STUDY DESIG...

The objectives of the present investigation were to prepare the 5-Fluorouracil (5-FU) loaded chitosan microspheres for colon targeting and its in vitro cytotoxicity analysis on HT-29 human colon cancer cell lines. Chitosan microspheres prepared by the emulsion polymerization method were analyzed for morphology, mean particle size, drug polymer interaction, entrapment efficiency, in vitro drug r...

Since maleic acid is capable of specially dissolving Chitosan, in this research the method of producing water lubricant nanoparticles in Chitosan solution, based on maleic acid has been studied. The resulting nanoparticles have a remarkable contact surface with the ordinary Chitosan form in absorbing metal ions, proteins and fat existing in Whey. After providing the 0.02, 0.03, 0.05 gr. density...

50 kDa chitosan was conjugated with folate, a specific tissue-targeting ligand. Nanoparticles such as chitosan-DNA and folate-chitosan-DNA were prepared by coacervation process. The hydrodynamic intravenous injection of nanoparticles was performed in the right posterior paw in normal and arthritic rats. Our results demonstrated that the fluorescence intensity of DsRed detected was 5 to 12 times...

in this paper, fe3o4-chitosan nanoparticles were prepared by the immobilization of chitosan on the surface of fe3o4 nanoparticles. then, the 5-substituted hydantoins were synthesized from the condensation of aldehyde derivatives, ammonium carbonate and zinc cyanide as a well-known cyanating agent by the magnetic fe3o4-chitosan nanoparticles under neat conditions. fe3o4-chitosan nanocatalyst as ...

Bisphenol A (BPA) is an endocrine disruptor which can mimic estrogen and has been shown to cause negative health effects in animal studies. The aim of this work was to study the protective effect of chitosan against BPA. Forty male albino rats were randomly divided into four equal groups. Group I, animals served as control. Group II, animals were injected by bisphenol A, intra-peritoneal, at a ...

There are no published data regarding the overall dietary glycaemic index (GI) and glycaemic load (GL) of Australian children and adolescents. We therefore aim to describe the dietary GI and GL of participants of the 2007 Australian National Children's Nutrition and Physical Activity Survey (2007ANCNPAS), and to identify the main foods contributing to their GL. Children, aged 2-16 years, who pr...

In different regions across the globe, elevated arsenic contents in the groundwater constitute a major health problem. In this work, a biopolymer chitosan has been blended with volcanic rocks (red scoria and pumice) for arsenic (V) removal. The effect of three blending ratios of chitosan and volcanic rocks (1:2, 1:5 and 1:10) on arsenic removal has been studied. The optimal blending ratio was 1...