The study of the interactions of cells with nanomaterials – antibacterial activity testing and analyses of cytotoxicity and biocompatibility of various materials is carried out using biological agents of the 1st and 2nd groups. Currently tested cell scaffold is electroactive and offers the possibility of electrical stimulation of cells, which is desirable in the field of tissue engineering and regenerative medicine due to its beneficial effect on cell differentiation, orientation and regeneration. That is why we collaborate with colleagues from the Department of Nonwovens and Nanofibrous Materials (KNT) to design and fabricate a platform into which the scaffold will be placed and provide the possibility of electrical stimulation of cells.
Cells:
Co-cultivation:
We currently study the modern concept of cytotoxicity testing of materials using co-cultivation of mammalian cell lines with bacterial cells, such as coagulase-negative staphylococci, micrococci, pseudomonads and enterobacteria. We try to mimic with the in vitro testing models the actual in vivo conditions.
In vitro characterization of materials:
Metal-based materials find their application mainly in the field of bone substitutes, and therefore we use a bone cell line (SAOS-2) for analyses. On the other hand, we test polymers capable of biodegradation, which are suitable for skin or nerve tissue regeneration, using skin and nerve cell lines (HaCAT, SH-SY5Y). Examples of nanomaterials that we tested are PCL (polycaprolactone) scaffolds with incorporated graphene nanoparticles, Sol-gel surface treatment with carbon nanoparticles, titanium scaffolds (Ti6Al4V) with DLC surface treatment and incorporated silicon and silver).
Materials used:
Methods used:
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