The polymeric nanoparticles are prepared from biocompatible polymers in size between 10-1000 nm. Chitosan is a biocompatible polymer that - can be utilized as drug delivery systems. In this study, chitosan nanoparticles were synthesized using an optimized spontaneous emulsification method. Determining particle size and morphology are two critical parameters in nanotechnology. The aim of this st...

It is well established that land use change (LUC) can impact soil organic carbon (SOC) in tropical regions, but the long-term effects of LUC on quality and C cycling remain unclear. Here, we evaluated how affects Amazon region using a 100-year observational chronosequence spanning primary forest-to-pasture conversion subsequent secondary forest succession. We found surprising increase topsoil S...

In the present paper, polymerization of alkali activated metakaolin (MK) and its structural changing, using 2M NaOH, 8M 16M NaOH solutions were followed by means X-ray photoelectron spectroscopy (XPS), Diffuse reflectance infrared Fourier transform (DRIFT), Raman Scanning electron microscopy (SEM). XPS analysis revealed that changing concentration did not affect types formed bonds in material. ...