JBCS

Different approaches for treatment of Alzheimer's disease (AD) are presented.

Construction and characterization of electrode using 3 kinds of gold recordable compact discs for biosensor development.

Synthesis of thieno[2,3-b]pyridine derivatives via intramolecular cyclization reactions of 3-cyano-2-(organylmethylthio)pyridines in excellent yields and in a short reaction time.

Preparation of agarose coated magnetic nano particles and their activation and functionalization by phenylephrine.

The ethionamide has been used in the treatment of drug-resistance tuberculosis (MDR-TB) and its quantification in pharmaceuticals and urine by square wave voltammetry boron-doped diamond electrode (SWV-BDDE) has been shown.

Evaluation of Al, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Pb and Zn contents in yerba mate (Ilex paraguariensis) by atomic spectrometric techniques.

Adsorption potential of functionalized multi walled carbon nanotubes (MWNTs) studied in Doxorubicin in water model system. Significant factors were evaluated using 2⁴ full factorial design. Thermodynamic and kinetic parameters were also studied.

A new furostanol saponin, ophiopogonin T, was isolated from the tubers of Ophiopogon japonicus. This compound showed a significant protective effect against cisplatin-induced cytotoxicity in porcine kidney (LLC-PK1) cells.

A simple and fast procedure for total Hg and methyl Hg measurement by graphite furnace atomic absorption in tuna fish candidate reference material produced in Brazil is proposed.

Street cocaine samples seized in five different Brazilian States (AC, BA, FD, GO and SP) were analyzed by the Federal Police chemical profiling program.

Hybrid magnetic nanomaterials with interest for biomedical applications were developed and studied through several techniques, including density functional theory.

Estimated crustal enrichment factors (CEF) indicate that atmospheric Zn is derived from anthropogenic sources and that atmospheric deposition may be a main input of this element in subtropical estuarine systems of Southern Brazil.

Cloud point extraction was applied to preconcentration of cadmium, copper and nickel from sediments after the procedure optimization using Doehlert and constrained mixture designs.

The new cyclic peptide alkaloid ixorine, along with known alkaloid frangulanine, were isolated from the branches of Ixora brevifolia. The isolation of frangulanine is first reported from Rubiaceae. The alkaloids showed activity against Leishmania amazonensis.

In the present work, novel procedure for synthesis of 2-amino-3-cyanopyridine derivatives has been reported by using copper nanoparticles on charcoal (Cu/C) as heterogeneous catalyst.

Isoniazid-derived hydrazones are the most cytotoxic compounds, whereas the thiosemicarbazones are more selective against L. braziliensis strains.

A new sampling method, using polypropylene syringes and gas chromatography analysis was proposed and applied to determine greenhouse gases in the city of Rio de Janeiro.

Pd/polyacrylamide (PAM) proved to be an efficient catalyst for Suzuki-Miyaura cross-coupling of ArI and ArBr in eco-friendly conditions.

A simple strategy for the application of an atomic absorption spectrometer to the direct determination of molecular compounds.

The optimized analytical method was efficient, specific and selective for simultaneous determination of Th and U by inductively coupled plasma optical emission spectrometry (ICP OES) in mineral fertilizers.