Formation of Composites with a Hydrogel Matrix Filled with Cobalt Ferrite/Piezoelectric Magnetoelectric Elements by Stereolithographic 3D Printing

• Published in: Inorganic materials : applied research Vol. 14; no. 2; pp. 349 - 357
• Main Authors: Tikhonova, S. A., Evdokimov, P. V., Putlyaev, V. I., Golubchikov, D. O., Murashko, A. M., Leontiev, N. V., Filippov, Ya. Yu, Shcherbakov, I. M.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-04-2023; Springer Nature B.V
• Subjects: Barium titanates; Chemistry; Chemistry and Materials Science; Cobalt ferrites; Electric fields; Electrical stimuli; Hydrogels; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Magnetostriction; Materials for Human Life Support and Environmental Protection; Materials Science; Monomers; Piezoelectricity; Polyethylene glycol; Regeneration (physiology); Three dimensional composites; Three dimensional printing; Tissue engineering; Ultraviolet radiation; barium titanate; bioceramics; osteoconductive implant; sodium potassium niobate; bismuth ferrite; hydrogel; stereolithography; magnetoelectric elements; cobalt ferrite
• ISSN: 2075-1133; 2075-115X
• DOI: 10.1134/S2075113323020466

Formation of composite bone implants filled with magnetoelectric elements (MEs) magnetostrictor/piezoelectric was carried out using stereolithographic 3D printing. Such implants are capable of generating local electric fields under the action of an external magnetic field, creating an additional electrical stimulus for bone tissue regeneration. CoFe
2
O
4
was used as a magnetostrictive material, and BaTiO
3
, Na
0.5
K
0.5
NBO
3
, and BiFeO
3
were used as piezoelectric materials. Magnetoelectric elements filled a hydrogel matrix based on a photopolymerized polyethylene glycol diacrylate (PEGDA) monomer. The main problems of stereolithographic formation of macroporous ME composites are related to the very strong absorption of UV radiation (405 nm) by monomer suspensions containing CoFe
2
O
4
and BiFeO
3
particles.