In nano-devices the presence of very high and rapidly varying electric fields is the cause of thermal heating of the carriers and the crystal lattice. In fact, the external electric field transfers energy to the electrons and in turn to the lattice through the scattering mechanism. This self-heating process can influence significantly the electrical behaviour because the dissipated electrical e...

We report investigations of hair surface potential under wetting at the nanometric scale by atomic force microscopy (AFM). Surface potential imaging was used to characterize the electrostatic properties of the hair samples. We found that the surface potential noticeably increases along the edges of the cuticles. These results are correlated with wetting behavior of different liquids performed u...

A new improved version of the J1...J4 interferometric method for optical phase measurements, named J1...J3 method, is described, which is of easier implementation and is more stable to phase drift than the original one. This new spectrum technique is used to characterize a flextensional piezoelectric actuator by measuring its nanometric displacement amplitudes.

Polymer-clay nanocomposites are a well known class of hybrid materials with enhanced functional and structural properties. In particular bio-nanocomposites, which result from the interactions of biopolymers and inorganic solids with dimensions in the nanometric scale, are receiving increasing attention due to their potential as ecological, biocompatible and economically viable high performance ...

Polypropylene (PP) has poor adhesion to metals and other surfaces for its chemical structure. Hence, chemical modification of PP is necessary for metal surface coating application. In this research, grafting of maleic anhydride (MA) onto co(propylene-b-ethylene) in the presence of a dicumyl peroxide (DCP) was accomplished in a single screw extruder. Characteristics of the modified polymer were ...

This minireview summarizes the most important synthetic methodologies for obtaining 2-D FeII SCO particles in nanometric scale and their magnetic behavior.