Quick setting cements may be a promising alternative to metallic devices for immobilization of bone fragments in several maxillofacial surgical procedures. The aim of this study was the evaluation of bioactivity and degradation of wollastonite-poly(n-butyl-2-cyanoacrylate) composite biomaterials, just to be used as surgical cements. Three formulations were prepared by mixing n-butyl-2-cyanoacry...

Antioxidant capacity of poorly soluble natural antioxidant kaempferol, in particular free or loaded two types cationic micelles, was studied on non-enzyme induced lipid peroxidation (LPO) vitro . The micelles were based triblock copolymers - poly(2-(dimethylamino)ethyl methacrylate-b-poly(propylene oxide)-b-poly(2-(dimethylamino)ethyl methacrylate (PDMAEMA-PPO-PDMAEMA) and methacrylate-b-poly(ε...

A solvent- and halogen-free synthesis of high purity triflate ionic liquids via direct alkylation of organic bases (amines, phosphines or heterocyclic compounds) with methyl and ethyl trifluoromethanesulfonate (methyl and ethyl triflate) has been developed. Cheap and non-toxic dimethyl and diethyl carbonate serve as source for the methyl and ethyl groups in the preparation of methyl and ethyl t...

lactide was synthesized by reverse polymerization of low molecular weight poly(lactic acid) with two different molecular weights:1500 and 2500. two different lactide purification processes such as: recrystallization in ethyl acetate and washing the crude lactide with ether before recrystallization in ethyl acetate were evaluated. it has been demonstrated that increasing the molecular weight of ...

• Complex formation of poly(2-ethyl-2-oxazoline) and poly(N-vinylpyrrolidone) with molecular iodine has been studied in aqueous solutions. Poly(2-ethyl-2-oxazoline) exhibits greater ability to bind compared Iodophors based on exhibited similar antimicrobial properties. Formation iodophors by interactions dissolved solutions addition potassium iodide ethanol using a range physicochemical techniq...

background: volatile organic compounds (vocs), including carcinogens and toxic compounds, are produced in petrochemical industries. we undertook this study in order to study workers’ respiratory exposure to different voc concentrations and compare the results with the urinary levels of its metabolites and study the correlation between them in petrochemical industries. materials and methods: exp...

This work presents the utilization of amphiphilic poly(oligo(ethylene glycol) methyl methacrylate)-co-poly(2-(diisopropylamino)ethyl methacrylate), P(OEGMA-co-DIPAEMA), hyperbranched (HB) copolymers, forming polymeric aggregates in aqueous media, as building nanocomponents and nanocarriers for entrapment magnetic cobalt ferrite nanoparticles (CoFe2O4, MNPs), hydrophobic drug curcumin (CUR) thei...