Wyniki wyszukiwania - BazTech

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Implant materials modified by colloids

Zboromirska-Wnukiewicz B., Wnukiewicz W., Kogut K., Wnukiewicz J., Rutowski R., Gosk J., Kasprzyk K.

Materials Science Poland

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2016

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Vol. 34, No. 1

33--37

EN

Recent advances in general medicine led to the development of biomaterials. Implant material should be characterized by a high biocompatibility to the tissue and appropriate functionality, i.e. to have high mechanical and electrical strength and be stable in an electrolyte environment – these are the most important properties of bioceramic materials. Considerations of biomaterials design embrace also electrical properties occurring on the implant-body fluid interface and consequently the electrokinetic potential, which can be altered by modifying the surface of the implant. In this work, the surface of the implants was modified to decrease the risk of infection by using metal colloids. Nanocolloids were obtained using different chemical and electrical methods. It was found that the colloids obtained by physical and electrical methods are more stable than colloids obtained by chemical route. In this work the surface of modified corundum implants was investigated. The implant modified by nanosilver, obtained by electrical method was selected. The in vivo research on animals was carried out. Clinical observations showed that the implants with modified surface could be applied to wounds caused by atherosclerotic skeleton, for curing the chronic and bacterial inflammations as well as for skeletal reconstruction surgery.

2

Modification of the Titanium Implants Surface by Silanes and Colloidal Silver

Zboromirska-Wnukiewicz B., Wnukiewicz J., Kogut K., Kasprzyk K., Wnukiewicz W.

Archives of Metallurgy and Materials

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2009

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Vol. 54, iss. 4

1005-1011

EN

Surface modification of an implants by colloidal silver and three kinds of silanes such as Z-6020, A - 187, TRIAMO were carried out. Contact angles of the implants covered colloidal silver with different properties were examined. The change of a hydrophobic character of the surface implants was defined. DSA 100 System which allow to contact angle measure of a solid bodies in wide bounds from 4° to 122° with accuracy of measurement to 0,1° were applied. The roughness of modified implants surface was examined by profilometer WYKO NT 9300 with high optical resolution.

PL

W pracy przedstawiono modyfikację powierzchni implantów srebrem koloidalnym oraz trzema rodzajami silanów: Z -6020, A - 187 oraz TRIAMO. Zmierzono kąt zwilżania na implantach pokrytych srebrem koloidalnym o różnych właściwościach. Określono charakter zmian hydrofobowości powierzchni implantów. Do pomiarów wykorzystano system DSA 100, który pozwala na pomiar kąta zwilżania płynów na powierzchniach ciał stałych w szerokich granicach od 40° do 120° z dokładnością pomiaru do 0,10°. Chropowatość powierzchni modyfikowanych implantów zmierzono przy pomocy profilometru optycznego Wyko NT 9300 o dużej rozdzielczości.

3

Nanoszenie nanocząstek srebra na powierzchnię biomateriałów

Wnukiewicz B., Sokołowski A., Malcher A., Wnukiewicz W.

Nowa Elektrotechnika

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2007

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nr 3 (31)

20--21