Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

In vitro evaluation of stainless steel orthodontic wires coated with TiO2 and TiO2:Ag for their anti-adhesive and antibacterial efficacy against Streptococcus mutans in a sucrose-enriched environment

Bącela Justyna Joanna, Borak Beata, Sobieszczańska Beata, Walczuk Urszula, Detyna Jerzy, Sarul Michał

Materials Science Poland

2023

Vol. 41, No. 4

78--94

In vitro examinations of the anti-inflammatory interleukin functionalized polydopamine based biomaterial as a potential coating for cardiovascular stents

Sareło Przemysław, Sobieszczańska Beata, Wysokińska Edyta, Gąsior-Głogowska Marlena, Kałas Wojciech, Podbielska Halina, Wawrzyńska Magdalena, Kopaczyńska Marta

Biocybernetics and Biomedical Engineering

2023

Vol. 43, no. 1

369--385

Despite advances in stent technologies, restenosis remains a serious problem of interventional cardiology and is considered as a consequence of the progressing inflammation within the vessel wall. Thus, attempts to extinguish this inflammatory process undoubtedly motivate the development of a coating that exhibits immunomodulatory properties. Hence, a polydopamine-based-coating functionalized with an anti-inflammatory interleukin is reported. By the ATR-FTIR spectroscopy and AFM examination the incorporation of cytokines into the coating structure is confirmed, thus effective functionalization is proved. The gradual delivery of cytokines allows to limit the influence of IL-4 and IL-10 deficiency, which is recognized as a restenosis risk factor. A relatively steady cytokine release profile exhibits therapeutic potential in the first days after implantation and in preventing late complications on cellular model. In vitro coating studies prove the promotion of endothelialization in the initial stage after implantation, being consistent with present treatment strategies. The limitation of IL-8 and MCP-1 daily release by coatinginteracted-endothelium significantly reduce another risk factor of restenosis. Finally, by assessing the changes in THP-1 differentiation, the coating immunological activity is confirmed, so the binding procedure do not impair biological properties of the interleukin. Therefore, it can be concluded that proposed anti-inflammatory coating can reduce the probability of restenosis to a minimum.

Antiadherent and antibacterial properties of TiO2-coated and TiO2:Ag-coated stainless steel orthodontic wires against S. mutans bacteria

Bącela Justyna Joanna, Kielan-Grabowska Zofia, Borak Beata, Sobieszczańska Beata, Walczuk Urszula, Kawala Beata, Zięty Anna, Detyna Jerzy, Sarul Michał

Acta of Bioengineering and Biomechanics

2022

Vol. 24, no. 3

107--118

Conventional orthodontic treatment with stainless steel orthodontic wires may be detrimental to oral health, as it contributes to demineralized lesions and increases adhesion and bacterial biofilm formation, which contributes to cavity development. An alternative that has been investigated to reduce the side effects of orthodontic treatment is the use of coating materials with antimicrobial nanoparticles. This study aims to evaluate the antiadherent and antibacterial properties of TiO2-coated and TiO2:Ag-coated stainless steel orthodontic wires against S. mutans bacteria. Methods: In the sol–gel method, TiO2:Ag thin films were deposited on stainless steel orthodontic wires. Coated archwires were analyzed for their antibacterial and antiadherent properties. The evaluation of Streptococcus mutans adhesion to the orthodontic wires’ surface was conducted according to the type of coating used, biofilm formation assay, and measurement of the pH of the bacterial community. Results: In the microbiological test, the TiO2:Ag coatings revealed a statistically significant difference in terms of microbial adhesion and biofilm formation by Streptococcus mutans. The TiO2:Ag coating on stainless steel wire increased pH levels in the saliva environment. Conclusions: It can be concluded that antimicrobial orthodontic wires coated with silver- TiO2 nanoparticles using the sol–gel thin film are a promising choice for improving orthodontic treatment.