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1. WO2020136420 - PIEZOELECTRIC DEVICE COMPRISING A MEMBRANE COMPRISING FIBRES OF A POLYHYDROXYALKANOATE

Publication Number WO/2020/136420
Publication Date 02.07.2020
International Application No. PCT/IB2018/060643
International Filing Date 27.12.2018
IPC
H01L 41/18 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16Selection of materials
18for piezo-electric or electrostrictive elements
H01L 41/37 2013.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
22Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
35Forming piezo-electric or electrostrictive materials
37Composite materials
CPC
H01L 41/183
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16Selection of materials
18for piezo-electric or electrostrictive devices ; , e.g. bulk piezo-electric crystals
183Composite materials, e.g. having 1-3 or 2-2 type connectivity
H01L 41/193
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16Selection of materials
18for piezo-electric or electrostrictive devices ; , e.g. bulk piezo-electric crystals
193Macromolecular compositions ; , e.g. piezo-electric polymers
H01L 41/37
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
22Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
35Forming piezo-electric or electrostrictive materials
37Composite materials
H01L 41/45
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
22Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
35Forming piezo-electric or electrostrictive materials
45Organic materials
Applicants
  • BIO-ON S.P.A. [IT]/[IT]
Inventors
  • SAETTONE, Paolo
  • GENERALI, Gianluca
  • PERSANO, Luana
  • CAMPOSEO, Andrea
  • PISIGNANO, Dario
  • CIFELLI, Mario
  • MONACO, Ilaria
  • MATURI, Mirko
  • COMES FRANCHINI, Mauro
Agents
  • BOTTERO, Carlo
Priority Data
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) PIEZOELECTRIC DEVICE COMPRISING A MEMBRANE COMPRISING FIBRES OF A POLYHYDROXYALKANOATE
(FR) DISPOSITIF PIÉZOÉLECTRIQUE COMPRENANT UNE MEMBRANE COMPRENANT DES FIBRES D'UN POLYHYDROXYALCANOATE
Abstract
(EN)
A piezoelectric device comprising a membrane comprising fibres of a polyhydroxyalkanoate (PHA), having average diameter comprised between 100 nm and 2000 nm, and at least one oxide having piezoelectric properties in a subdivided form having at least one average size comprised between 1 nm and 100 nm. Preferably the PHA fibres are produced by electrospinning. Advantageously, demonstrating good piezoelectric properties and considering that the piezoelectric device according to the present invention comprises PHA, a biodegradable and biocompatible material, the device can be used in biological systems, for example in flexible micro-actuator systems for drug delivery and in the engineering of biological tissues (such as, for example, in pacemaker devices).
(FR)
L'invention concerne un dispositif piézoélectrique comprenant une membrane comprenant des fibres d'un polyhydroxyalcanoate (PHA), ayant un diamètre moyen compris entre 100 nm et 2000 nm, et au moins un oxyde ayant des propriétés piézoélectriques sous une forme subdivisée ayant au moins une taille moyenne comprise entre 1 nm et 100 nm. De préférence, les fibres de PHA sont produites par électrofilage. Avantageusement, démontrant de bonnes propriétés piézoélectriques et étant donné que le dispositif piézoélectrique selon la présente invention comprend PHA, un matériau biodégradable et biocompatible, le dispositif peut être utilisé dans des systèmes biologiques, par exemple dans des systèmes micro-actionneurs flexibles pour l'administration de médicament et dans l'ingénierie de tissus biologiques (tels que, par exemple, dans des dispositifs de stimulateur cardiaque).
Latest bibliographic data on file with the International Bureau