We investigate the impact of nanoparticles (NP) on the fragility and cooperative stringlike motion in a model glass-forming polymer melt by molecular dynamics simulation. The NP cause significant changes to both the fragility and the average length of stringlike motion, where the effect depends on the NP-polymer interaction and NP concentration. We interpret these changes via the Adam-Gibbs (AG...

In the current research, preparation and characterization of a series new biocompatible injectable bone paste (IBP) nanocomposites, hydroxyapatite-gelatin (HA-Gel), hydroxyapatite-gelatin-alendronate (HA-Gel-Ald np) are reported. IBP HA-Gel np, were synthesized from mixing different ratios gelatin to aqueous solutions both Ca(NO3)2.4H2O (NH4)2HPO4, while target HA-Gel-Ald obtained by submitting...

background: human breast milk is the most important food for infants and one of the main roads to exposure to toxic substances. in this study, nonylphenol (np) levels in human milk samples collected from turkish mothers (n=100) were determined, and the factors including mothers’ demographics, eating habits, obstetric histories, and usage of cleaning and cosmetic products were examined. methods:...

The rapidly emerging field of nanotechnology has offered innovative discoveries in the medical, industrial, and consumer sectors. The unique physicochemical and electrical properties of engineered nanoparticles (NP) make them highly desirable in a variety of applications. However, these novel properties of NP are fraught with concerns for environmental and occupational exposure. Changes in stru...