Scientific Program

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Virtual poster session

Characterization of 3D printed PHBV+BG scaffolds for bone regeneration

Wednesday (07.10.2020)
19:25 - 19:28 Room 1
Part of:
Line-Up:
18:40 Virtual poster session Development of CFRP - hybrid foam composites for improved light-weight design of electric vehicles 1 Joachim Baumeister
18:43 Virtual poster session Study of the thermal conductivity of powdered microcellular polymers based on PMMA 1 Ph.D. Ismael Sánchez
18:46 Virtual poster session Manufacturing of functional aluminium matrix syntactic foams 1 Alexandra Kemény
18:49 Virtual poster session Manufacturing and comparison of AlSi12 matrix unimodal and bimodal syntactic metal foams 1 Borbála Leveles
18:52 Virtual poster session The effect of elastomer viscosity in pp/poe foams produced by core-back injection moulding over impact properties 1 Ph.D. Santiago Muñoz Pascual
18:55 Virtual poster session Modelling of the mechanisms of heat transfer in glass foams at different temperatures 1 Paula Cimavilla-Román
18:58 Virtual poster session Thermal conductivity of polyisocyanurate foams (PIR) produced using hydrofluoroolefins (HFOs) as blowing agents 1 Ph.D. Patricia Torres
19:01 Virtual poster session Multiscale modeling of biopolymer aerogels 1 Dr.-Ing. Ameya Rege
19:04 Virtual poster session On the way to mass production of unit-cell based auxetic materials 1 Angela Schwarz
19:07 Virtual poster session Wavy knits – enabling the production of auxetic materials 1 Angela Schwarz
19:10 Virtual poster session Influence of Sample Size on Dynamic Compression of Metal Syntactic Foams 1 Nima Movahedi
19:13 Virtual poster session Synthesis of new non-isocyanate polyurethane foams based on cyclic triscarbonates and diamines 1 Ph.D. Mercedes Santiago-Calvo
19:16 Virtual poster session Formation of monodisperse surfactant foams 1 Prof. Dr. Rumen Krastev
19:19 Virtual poster session Analysis of a AlMg2.5 matrix syntactic foam produced via thixoinfiltration of loosely packed and micro structured recycled balloons 1 João Paulo Paschoal
19:22 Virtual poster session In-situ observation of combustion foaming process for synthesizing porous Al3Ti by X-ray radioscopy 1 Takamasa Inukai
19:25 Virtual poster session Characterization of 3D printed PHBV+BG scaffolds for bone regeneration 1 Prof. Dr. Elida B. Hermida
19:28 Virtual poster session Rheology of a hydrogel-ink, printing fidelity and elastic behavior of 3D-printed scaffolds 1 Prof. Dr. Elida B. Hermida
19:31 Virtual poster session Keratinocytes hacat proliferation on 3D-printed chitosan-collagen scaffolds 1 Prof. Dr. Elida B. Hermida
19:34 Virtual poster session The microhardness and microstructure studies on the sintered open-cell nickel foam 0 Faeze Barzegar
19:37 Virtual poster session Characterization of porous titanium implants produced by 3D printer technique 0 Dr. Akram Salehi
19:40 Virtual poster session Adapting polymer derived ceramic membranes for emulsification process 1 Natália Cristina Fontão
19:43 Virtual poster session Poster discussion in video chat rooms 0
Session Chair


Session V.1: Session 1
Belongs to:
General Topic V: Virtual poster session


Fractures and diseases of bone tissue are a common problem and can affect anyone. Many materials and fabrication techniques have been used to help patients in bone tissue regeneration. Metal prostheses are the most widely used solution to facilitate bone regeneration, acting as structural support, however, they may cause inflammation or rejection. Allografts may be incompatible and autografts require two interventions, increasing the chance of infections. Recent studies showed an alternative solution, using biocompatible and resorbable materials to build scaffolds that aid the regeneration of the damaged or missing tissue. These scaffolds are three dimensional medical products designed to temporally replace bone structure and help tissue regeneration before being reabsorbed. Fused Deposition Manufacturing (FDM) technique can be used to print 3D scaffolds, allowing emulation of the macro and microstructure of the tissue.

In this work, a filament made of Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and Bioglass® (BG) was extruded and then used to manufacture scaffolds with a commercial 3D printer. Micrographs of the 3D printed scaffolds demonstrate that the parameters chosen for the FDM process allow us to faithfully follow details of the digital designs. Furthermore mean size of pores was measured for different printing nozzle diameters and infill densities, achieving promising results for bone scaffolds. Tensile, compression, flexion, fracture and impact tests were carried out, following ASTM standards. Results showed similarities between the printed scaffolds made of PHBV + BG and the trabecular bone. Finally, a superficial treatment with BG particles increases the roughness of the scaffolds and enhances the formation of hydroxyapatite, that might promote bone cells interaction.

Speaker:
Prof. Dr. Elida B. Hermida
National University of San Martin - UNSAM
Additional Authors:
  • Tomás Federico
    National University of San Martin
  • Dr. Beatriz Aráoz
    National University of San Martin