the aim of this work was to investigate the effect of silica coating on bioactivity and biodegradability of hydroxyapatite. in this purpose, we firstly attempted to synthesis hydroxyapatite (ha) nanoparticles and its silica coated (si-ha) sample in collagen matrix using calcium chloride, sodium phosphate and sodium silicate. characterization of the sample was carried out using fourier transform...

Whole-molecule descriptors are obtained computationally from molecular structures using a variety of programs. Their applications are reviewed in the areas of solubility, bioavailability, bio- and nonbio-degradability and toxicity.

A bio-derived polyester has been crosslinked into flexible films for solid polymer electrolyte applications in Li + -ion batteries, with ionic conductivity around 10 −5 S cm −1 at 60 °C, high transference number (0.84), and hydrolytic degradability.

Abstract The paper presents an overview of (i) the different polluting materials, classified according to their (bio)degradability, (ii) sources pollution (iii) general effects on natural resources and economy people’s health. also summarizes directions/solutions eliminate these effects, including “eco” technologies, effectiveness environmental conservation regional global ecosystem protection,...