The interaction of human serum albumin with Ethyl 2-[2-(dimethylamino)-4-(4-nitrophenyl)- 1,3-thiazole-5-yl]-2-oxoacetate was investigated by using isothermal titration UV-visible spectrophotometry in tris-buffer, pH 7.4. According to these results, it was found that there are a set of 4 binding sites for this ligand on HSA with positive cooperativity in the binding process. This thiazole deriv...

Peels of Hijau lumut banana (HLB) (Musa paradisiaca L.) are a form organic waste that has not been widely utilized. This study was conducted to determine the antibacterial activity ethyl acetate extract HLB peels and their nanoparticles at various concentrations chitosan against Staphylococcus aureus Escherichia coli. It also aimed characterize most active nanoparticles. Ex...

A simple indirect spectrophotometric method for determination of mebendazol in pure and pharmaceutical formulation was presented this study. UV-Visible spectrophotometry using the optimal conditions developed mebendazole drug different preparation samples. The is based on oxidation by n-bromosuccinimide with hydrochloric acid left amount oxidizing agent determined reaction tartarazine absorbanc...

The determination of stoichiometries and stability constants of complexes by means of UV-visible spectrophotometry applying traditional methods does not evaluate the quality of the values obtained, since the classic application of these methods does not provide coverage intervals. However, the use of chemometric techniques in different steps of the application of these methods makes it possible...

A blue-LED-driven two-liquid-phase system has been set up for the in situ activation of horseradish peroxidase avoiding use hydrogen peroxide and drawbacks related to enzyme denaturation undesired radical side-reactions. The photobiocatalytic was applied oxidative coupling natural synthetic coumarins bicoumarins, allowing obtain homodimers only one step, tedious protecting groups. Two C-2 symme...

Graphene-carbon nitride can be synthesized from thiourea in a single step at temperature of four hours rate 2.3 ℃/min. was characterized by Fourier-transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), scanning electron microscopy, and spectrophotometry (UV-VIS). found to consist triazine heptazine structures, carbon, nitrogen. The weight percentage carbon the atomic a...

The current work focuses on the photo degradation of organic pollutants, particularly methylene blue (MB) dye, and production hydrogen as green energy using a composite silver phosphate Ag3PO4 (AP) barium oxide/silver BaO@Ag3PO4 (APB) photocatalyst. This was successfully synthesized chemical co-precipitation approach. physicochemical properties obtained samples were investigated scanning electr...