Polyaniline (PANI) with electrodonating and electrowithdrawing substituents were electrodeposited and studied as sensing materials in resistors and heterojunctions. Whereas the dimethoxyaniline leads to a highly conductive material, the tetrafluoroaniline leads to a poor conducting polymer. However, this latter was used in heterojunctions, associated with a highly conductive material, the lutet...

Intrinsically conducting polymers (ICPs) have been considered for use in various applica‐ tions. One of the most important applications of these materials which are attracting consid‐ erable attention in the most recent times is in corrosion protection of oxidizable metals [1]. The effective use of conducting polymers for corrosion protection of metals can be carried out by different methods; l...

We provide a complete proof of the result announced twenty years ago in [5], namely the characterization in two dimensions of the set of the effective conductivities obtained by mixing two anisotropic conducting materials with arbitrary orientation. We also provide a complete proof of the characterization (also already announced in [5]) of the sets of conducting materials with arbitrary orienta...

Abstract We treat an inverse electrical conductivity problem which deals with the reconstruction of nonlinear starting from boundary measurements in steady currents operations. In this framework, a key role is played by Monotonicity Principle, establishes monotonic relation connecting unknown material property to (measured) Dirichlet-to-Neumann operator (DtN). Principles are foundation for clas...