The application of Purolite A-510 anionic resin for an industrial effluent treatment generated by the technological process of streptomycin production is studied taking into account the recycling requirements of treated wastewater and recovery demands of all useful materials (e.g., solvents, antibiotics etc.). All the experiments were performed on a laboratory set-up scale by working into stati...

The Merrifield solid-phase peptide synthesis technique has been adapted to the synthesis of homo- and heterometallic metal−organic complex arrays (MOCAs). A terpyridine-appended and Fmoc-protected L-tyrosine derivative was metalated with Pt(II), Rh(III), or Ru(II) ions in solution and sequentially coupled at the surface of functionalized polymeric resin to give a metal complex triad (Rh−Pt−Ru),...

Binding resin beads used in DGT (diffusion gradients in thin films) tend to settle to one side of the resin during casting. This phenomenon might be relevant for metal accumulation when partially labile complexes dominate the metal speciation, especially after recognizing the important role played by complex dissociation in the resin domain. The influence of the inhomogeneity of the binding age...

Interactions between poly(ethy1ene oxide) and phenol-formaldehyde resin play important roles in the mechanism by which the two polvmers improve fibre retention in the papermaking process. These were investigated at the concentration level and shear conditions found in this vrocess. The results indicste that the comvlex formed varies with pH and ionic strength over a very narrow range of conditi...

the purpose of this study was to prepare and characterize microspheres loaded by cyclosporine a(cya)-cyclodextrin (cd) complex. to achieve this goal, plga microspheres loaded by cya cd complex were prepared by multiple emulsificationsolvent evaporation methods.morphology, size, encapsulation efficiency and drug release from these microspheres were evaluated. microscopic evaluation of microspher...

Propolis, a honeybee product, has gained popularity as a food and alternative medicine. Its constituents have been shown to exert pharmacological effects, such as anti-microbial, anti-inflammatory and anticancer. Shoot apices of Baccharis dracunculifolia (alecrim plant, Asteraceae) have been pointed out as sources of resin for green propolis. The present work aimed (i) to observe the collecting...

Soft lithographic techniques were used to fabricate polymeric microparticles for drug delivery applications. The microparticles were made of thermoplastics and thermosets from different types of precursors including reactive resin and polymer solutions in organic solvents or water. The microparticles produced using these methods were made of widely used polymers for drug delivery with highly un...

In the spring of 1968 we conducted a series of pilot experiments on acute marijuana intoxication in human subjects. The study was not undertaken to prove or disprove popularly held convictions about marijuana as an intoxicant, to compare it with other drugs, or to introduce our own opinions. Our concern was simply to collect some long overdue pharmacological data. In this article we describe th...

The present study was designed to study drug release retardant property of myrrh oleo-gum resin from tablets prepared by direct compression method (without binding agent). The tablets were evaluated for various physical tests viz. hardness, friability, tensile strength and drug content. Accelerated stability testing was carried out according to ICH guidelines. Batch F-VII showed 041% friability...