Book Chapter 1 – Organic and Biological Piezoelectric Materials

Abstract: The results of the study of the temperature dependence of the dielectric permittivity of Cd2P2S6 crystals are presented. It is shown that in the temperature range 80–420 K there are three regions in which hysteresis phenomena are observed. At high temperatures (T > 320 K) there is an activation change of the dielectric

Abstract: As it has been shown recently, the influence of the flexoelectric coupling (shortly “flexocoupling”) on the fluctuations of electric polarization and elastic strains can lead to the principal changes of the dispersion law of soft optical and acoustic phonons (shortly “flexophonons”) and ferrons (shortly “flexoferrons”) in van der Waals

Abstract: Electric conduction mechanisms in pressed powder samples consisting of molybdenum-disulfide-oxide (MoSxOy) nanoflakes depending on their content and structure have been investigated. The MoSxOy nanoflakes were synthesized in the temperature range of 130 °C–180 °C by reaction of (NH4)6Mo7O24 with thiourea in aqueous solution followed by aerial oxidation. The chemical

Abstract: Magnetoelectric nanoparticles (MENPs), combining a magnetostrictive core with a piezoelectric shell, offer a promising route for remote-controlled biomedical applications by converting external magnetic fields into electric cues. However, the clinical translation of these materials remains limited due to the toxicity of high-performance piezoelectric materials, which typically contain lead. Previously,

Abstract: We observed a colossal dielectric response of small (5–10 nm) oxygen-deficient H⁡f𝑥⁡Z⁢r1−𝑥⁢O2 nanoparticles (𝑥=1–0.4), prepared by solid-state organonitrate synthesis. The effective dielectric permittivity of the pressed H⁡f𝑥⁡Z⁢r1−𝑥⁢O2 nanopowders has a pronounced maximum at 38–88∘⁢C, the shape of which can be fitted by the Curie-Weiss type dependence modified for the

Abstract: Bone regeneration is a well-orchestrated biological process involving coordinate efforts of multiple cells, cytokines, and signals, among which nerves play a dominant role in regulating osteogenesis. Draw inspiration from the inherent electroactive features of bone and nerve, bioelectric implant providing wireless delivery of electrical stimulation (ES), is an emerging