Magnetic Ionic Liquid: A Multifunctional Platform for the Design of Hybrid Graphene/Carbon Nanotube Networks as Electromagnetic Wave-Absorbing Materials.

Magnetic ionic liquid (MIL) based on alkyl phosphonium cation was used as a curing agent for developing epoxy nanocomposites (ENCs) modified with a graphene nanoplatelet (GNP)/carbon nanotube (CNT) hybrid filler. The materials were prepared by a solvent-free procedure involving ball-milling technology. ENCs containing as low as 3 phr of filler (GNP/CNT = 2.

Acylhydrazones as isoniazid derivatives with multi-target profiles for the treatment of Alzheimer's disease: Radical scavenging, myeloperoxidase/acetylcholinesterase inhibition and biometal chelation.

Acylhydrazones 1a-o, derived from isoniazid, were synthesized and evaluated for Myeloperoxidase (MPO) and Acetylcholinesterase (AChE) inhibition, as well as their antioxidant and metal chelating activities, with the purpose of investigating potential multi-target profiles for the treatment of Alzheimer's disease. Synthesized compounds were tested using the 2,2-diphenyl-2-picrylhydrazyl (DPPH) method and 1i, 1j and 1 m showed radical scavenging ability. Compounds 1b, 1 h, 1i, 1 m and 1o inhibited MPO activity (10 μM) at 96.

Adsorption of gallic acid on nanoclay modified with poly(diallyldimethylammonium chloride).

In this work, particles of nanoclay modified with poly(diallyldimethylammonium), PDDA, namely PDDA/PGV, were obtained and characterized by infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), surface area measurement (BET surface area), measurement of zero charge point (pH), and scanning electron microscopy with energy-dispersive spectroscopy (SEM/EDS). The PDDA/PGV particles were applied as adsorbent for the removal of gallic acid (GA) from aqueous solution. The effect of various parameters, such as solution pH, contact time, adsorbent mass, and temperature, was studied.