Abstract: A system for the therapeutic treatment of joints comprising a composite material comprising a biodegradable polymer matrix and a plurality of piezoelectric particles adapted to generate local electric charges in response to an external stimulation made by means of ultrasound, said plurality of piezoelectric particles being dispersed in the matrix. The composite material also comprises a plurality of stamina cells dispersed in the biodegradable polymer matrix and a plurality of carbon-based particles. The system also comprises a releasing device, arranged to deposit the composite material in a joint cavity at predetermined areas of the cartilage, and a stimulator device arranged to emit ultrasound at a predetermined frequency, a predetermined intensity and for a predetermined time of application, in such a way that, when the device is located near a joint wherein the composite material has been deposited, said ultrasound stimulate the plurality of piezoelectric particles.

Abstract: A method of treatment of connective tissue includes the steps of providing a biological tissue or organ, coating the tissue or organ with an enzymatic solution capable of phagocytizing at least partly fibroblasts, macrophages, mast cells and other cells responsible for immune and rejection reactions in homologous and heterologous transplantations. The biological tissue or organ, after the treatment with the enzymatic solution is irradiated with ionizing electromagnetic radiations in order to obtain an acellular tissue which maintains its own extracellular matrix unchanged. Preferably, such radiations are gamma radiations having a frequency between 1019 and 1022 Hz, beta radiations or mixtures thereof.

Abstract: The present invention refers to a porous composite material, wherein at least one interdispersed biopolymer is present, with a calcium-phosphate mineral component comprising from 50 w/% to 95 w/% of ?-tricalcium phosphate (?-TCP, ?-Ca3(PO4)2) and from 5 w/% to 50 w/% of octacalcium phosphate (OCP, Ca8H2(PO4)6—5H2O), to the total weight of the mineral component. Such combination of ?-TCP and OCP allows an in vivo faster resorption rate and thereby a faster formation of new bone tissue having a low cristallinity mineral component with nanocrystal structure, features very similar to those of biological apatites. This porous composite material may find application as bone and/or osteal-chart ilagineous substitute (scaffold) and in producing tissue engineering devices.