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Deposition of Zinc Oxide on the Materials Used in Medicine. Preliminary Results

Teterycz H, Suchorska-Woźniak P, Fiedot M, Karbownik I

Fibres & Textiles in Eastern Europe

2014

Vol. 22, no. 3 (105)

126--132

This paper presents preliminary results of the direct deposition of nano- and microstructures of zinc oxide on materials used in medicine. The coatings were deposited on cotton gauze and polyamide fabric. During the research the biological activity of these materials was defined. Performed were also tests of doping the ZnO structures with silver obtained. The research has proved that there is a growth of zinc oxide structures both on the gauze and polyamide fabric. The nanostructures deposited on it did not become detached from the surface, even though the material was subjected to ultrasonic rinsing. In addition, good biocidal properties of both of the textile materials modified were found. Furthermore a complex surface analysis of catheters: vascular and urological was made. ZnO was deposited on catheters, but they were characterised by low adhesion.

W artykule przedstawiono wstępne wyniki badań bezpośredniego osadzania nano- i mikrostruktur tlenku cynku na materiałach stosowanych w medycynie. Warstwy osadzono na gazie opatrunkowej, tkaninie poliamidowej oraz cewnikach wykonanych z politetrafluoroetylenu. Podczas badań określono aktywność biologiczną czystej oraz pokrytej ZnO gazy opatrunkowej i tkaniny poliamidowej. Wykonano również próby domieszkowania otrzymywanych struktur ZnO srebrem. Badania wykazały, że na analizowanych materiałach zachodzi wzrost struktur tlenku cynku. Stwierdzono dobre właściwości biobójcze zmodyfikowanych materiałów włókienniczych. Ponadto przeprowadzono kompleksową analizę powierzchni cewników naczyniowych i urologicznych. Na ich powierzchni również tworzyły się warstwy tlenku cynku, lecz charakteryzowały się niską adhezją .

Verification of biological properties of poly-ε-caprolacton (PCL) as the material dedicated to medicine and biotechnology

Wieczorek J., Grad I., Stodolak-Zych E., Kosenyuk Y.

Engineering of Biomaterials

2013

Vol. 16, no. 122-123 spec. iss.

66--68

The aim of the study was evaluation of possibility of poly-ε-caprolacton (PCL) application as potential material for production of medical devices, as catheters for obtaining and transporting of embryos as well as dishes for embryos culture in vitro and covers for cryoconservation. The possible application of this biomaterial needs verification of its biological properties on embryos culture. The foil discs made of policaprolacton, thickness 0.5 mm, diameter 3.5 mm, were prepared in two forms: the baseline one (nPCL) and thermally modified by freezing with liquid nitrogen (mPCL). The verification of PCL bioconcordance was performed by evaluation of 102 pig embryos. To evaluate poly-ε-caprolacton bioconcordance we performed 5-day long culture of embryos on the evaluated material, not frozen (nPCL) and frozen in liquid nitrogen (mPCL) and additionally culture after short contact with poly-ε-caprolacton, lasting 15 minutes (nPCL-15). In all evaluated study groups the development of embryos was suppressed shortly after transfer to the culture with PCL. In the control group. 74%-78% of embryos reached blastocyst stage. Polycaprolacton cannot be used as the material for catheter production used in biotechnology of animal reproduction and other materials used for in vitro culture and cryoconservation.

Modyfikacja powierzchni polimerów do zastosowań medycznych

Kaźmierska K., Pływaczewska M., Ciach T.

Inżynieria i Aparatura Chemiczna

2006

Nr 5s

64-66

The authors of the paper durably covered PCV urethral catheters by wear-resistant hydrogel coatings (based on polyvinylpyr-rolidone, PVP) using chemical grafting method. Triclosan and iodine were incorporated as antimicrobial agents. Modified surfaces are characterized by strong hydrophility (wetting angle was equal to 180o) and reduced friction coefficient (4 times lower compared to uncoated PCV).