Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk


Joanna Idaszek

Ostatnie publikacje
1.  Górecka Ż., Idaszek J., Kołbuk D., Choińska E., Chlanda A., Święszkowski W., The effect of diameter of fibre on formation of hydrogen bonds and mechanical properties of 3D-printed PCL, Materials Science and Engineering C-Materials for Biological Applications, ISSN: 0928-4931, DOI: 10.1016/j.msec.2020.111072, Vol.114, pp.111072-1-11, 2020

Fused Deposition Modelling (FDM) technique has been widely utilized in fabrication of 3D porous scaffolds for tissue engineering (TE) applications. Surprisingly, although there are many publications devoted to the architectural features of the 3D scaffolds fabricated by the FDM, none of them give us evident information about the impact of the diameter of the fibres on material properties. Therefore, the aim of this study was to investigate, for the first time, the effect of the diameter of 3D-printed PCL fibres on variations in their microstructure and resulting mechanical behaviour. The fibres made of poly(ε-caprolactone) (PCL) were extruded through commonly used types of nozzles (inner diameter ranging from 0.18 mm to 1.07 mm) by means of FDM technique. Static tensile test and atomic force microscopy working in force spectroscopy mode revealed strong decrease in the Young's modulus and yield strength with increasing fibre diameter in the investigated range. To explain this phenomenon, we conducted differential scanning calorimetry, wide-angle X-ray-scattering, Fourier-transform infrared spectroscopy, infrared and polarized light microscopy imaging. The obtained results clearly showed that the most prominent effect on the obtained microstructures and mechanical properties had different cooling and shear rates during fabrication process causing changes in supramolecular interactions of PCL. The observed fibre size-dependent formation of hydrogen bonds affected the crystalline structure and its stability. Summarising, this study clearly demonstrates that the diameter of 3D-printed fibres has a strong effect on obtained microstructure and mechanical properties, therefore should be taken into consideration during design of the 3D TE scaffolds.

Słowa kluczowe:
fused deposition modelling, polycaprolactone, mechanical properties, hydrogen bonds, microstructure

Afiliacje autorów:
Górecka Ż. - Warsaw University of Technology (PL)
Idaszek J. - inna afiliacja
Kołbuk D. - IPPT PAN
Choińska E. - Warsaw University of Technology (PL)
Chlanda A. - Warsaw University of Technology (PL)
Święszkowski W. - IPPT PAN
2.  Witecka A., Yamamoto A., Idaszek J., Chlanda A., Święszkowski W., Influence of biodegradable polymer coatings on corrosion, cytocompatibility and cell functionality of Mg-2.0Zn-0.98Mn magnesium alloy, COLLOIDS AND SURFACES B-BIOINTERFACES, ISSN: 0927-7765, DOI: 10.1016/j.colsurfb.2016.04.021, Vol.144, pp.284-292, 2016

Four kinds of biodegradable polymers were employed to prepare bioresorbable coatings on Mg-2.0Zn-0.98Mn (ZM21) alloy to understand the relationship between polymer characteristics, protective effects on substrate corrosion, cytocompatibility and cell functionality. Poly-l-lactide (PLLA), poly(3-hydroxybutyrate) (PHB), poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) or poly(lactic-co-glycolic) acid (PLGA) was spin-coated on ZM21, obtaining a smooth, non-porous coating less than 0.5 μm in thickness. Polymer coating characterization, a degradation study, and biocompatibility evaluations were performed. After 4 w of immersion into cell culture medium, degradation of PLGA and PLLA coatings were confirmed by ATR-FTIR observation. The coatings of PLLA, PHB and PHBV, which have lower water permeability and slower degradation than PLGA, provide better suppression of initial ZM21 degradation and faster promotion of human osteosarcoma cell growth and differentiation.

Słowa kluczowe:
Biodegradable metal, Magnesium alloy, Biodegradable polymer, SaOS-2 differentiation, Calcification

Afiliacje autorów:
Witecka A. - inna afiliacja
Yamamoto A. - National Institute for Materials Science (JP)
Idaszek J. - inna afiliacja
Chlanda A. - Warsaw University of Technology (PL)
Święszkowski W. - inna afiliacja

Lista rozdziałów w ostatnich monografiach
Costantini M., Testa S., Rinoldi C., Celikkin N., Idaszek J., Colosi C., Gargioli C., Święszkowski W., Barbetta A., Biomaterials Science Series, Biofabrication and 3D Tissue Modeling, rozdział: 3D Tissue Modelling of Skeletal Muscle Tissue, Royal Society of Chemistry, Edited by Dong-Woo Cho, 3, pp.184-215, 2019

Kategoria A Plus


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