Effect of silica precursors-type on mechanical properties of sol-gel coatings

• Autorzy: Grygier D. , Dudziński W. , Wiktorczyk T. , Haimann K.
• Języki publikacji: EN

Abstrakty

EN

Reversion to narrowing, called restenosis, still remains an important problem of coronary angioplasty. Analysis of the problem revealed that the application of surface layers aimed at creating on the stent surface a neutral barrier between its metallic framework and tissues of the blood-vascular system is decidedly best to impede the restenosis. They also play the role of medicine carriers. This article presents a new sol-gel technology, to be applied in coronary stent coatings. Currently, this is one of the most progressive methods allowing the modification of surface layers of metallic biomaterials. The results presented prove that due to a proper selection of silica precursors it is possible to obtain continuous, smooth, plastic deformation-resistant sol-gel coatings, which additionally are characterised by very close adherence to the base material, nanometer thickness and low degree of surface development.

Słowa kluczowe

EN

coronary stents; sol-gel technology; silica precursor

PL

krzemionka; system naczyniowy; właściwości mechaniczne

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2008
• Tom: Vol. 10, nr 1
• Strony: 27--35
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Grygier D.

autor

Dudziński W.

autor

Wiktorczyk T.

autor

Haimann K.

• Wrocław University of Technology, Institute of Materials Science and Applied Mechanics

Bibliografia

• [1] ŁANDA K., PLISKO R., WCISŁO J. et al., Comparison of clinical and cost-related efficiency of a stent releasing rapamycine with operative cardiology methods commonly used in Poland in IHD treatment (in Polish), HTA Consulting, Kraków, 2002.
• [2] NAKATANI M., TAKEYAMA Y., SHIBATA M. et al., Mechanisms of restenosis after coronary intervention. Difference between plain old balloon angioplasty and stenting, Cardiovascular Pathology, 2003, 12, 40–48.
• [3] GUNN J., CUMBERLAND D., Stent coating and local drug delivery, European Heart Journal, 1999, 20, 1693–1700.
• [4] VERWEIRE I., SCHACHT E., QIANG B. et al., Evaluation of fluorinated polymers as coronary stent coating, Journal of Material Science Materials in Medicine, 2000, 11, 207– 212.
• [5] BARTRAND O., SIPEHIA R., MONGRAIN R. et al., Biocompatibility aspects of a new stent technology, Journal of American College of Cardiology, 1998, 32, 562–571.
• [6] RITTER W., New types of circumferential stents (in Polish), Polish Medical Review, 2003, 4, 22–26.
• [7] KOCZY B., MARCINIAK J., Biotolerance of AISI 316L steel implants with passive and passive-diamond layers (in Polish), Biomaterial Engineering, 2000, 11, 23–31.
• [8] ONG A., VAN DER GIESSEN W., Drug-eluting stents for interventional revascularization of coronary multivessel disease, Journal of Interventional Cardiology, 2005, Vol. 18, No. 6, 447–453.
• [9] JENSEN J., LAGERQVIST B., AASA M. et al., Clinical and angiographic follow-up after coronary drug-eluting and bare metal stent implantation. Do drug-eluting stents hold the promise? Journal of Internal Medicine, 2006, Vol. 260, No. 2, 118–124. Fig. 11. Surface profilogram of a steel specimen
• [10] GŁUSZEK J., Oxide protective coatings obtained by sol-gel method (in Polish), Publishing House of Wrocław University of Technology, Wrocław, 1998.
• [11] ŁASKAWIEC J., MICHALIK R., Theoretical and application problems of implants (in Polish), Publishing House of Silesian Technical University, Gliwice, 2002.
• [12] GŁUSZEK J., Prospects of sol-gel method application in manufacture of protective coatings (in Polish), Material Engineering, 2002, 5, 351–354.
• [13] MICHALIK R., ŁASKAWIEC J., KLICH M., Protective coatings applied by sol-gel method on implants (in Polish), Material Engineering, 2002, 5, 372–375.
• [14] VIITALA R., JOKINEN M., PELTOLA T. et al., Surface properties of in vitro bioactive and non-bioactive sol-gel derived materials, Biomaterials, 2002, 23, 3076–3086.
• [15] MARUSZEWSKI K., STRĘK W., JASIORSKI M., UCYK M., Technology and application of sol-gel materials, Radiat. Eff. Defects Solids, 2003, 158, 1–6, 439–450.
• [16] TADASHI K., HYUN-MIN K., MASAKAZU K., Novel bioactive materials with different mechanical properties, Biomaterials, 2003, 24, 2161–2175.
• [17] TAKASHI G., Surface coating technology for biomaterials – morphology and nano-structure control, International Congress Series, 2005, 1284, 248–256.
• [18] KOUBO T., KIM H., KAWASHITA M., Novel bioactive materials with different mechanical properties, Biomaterials, 2003, 24, 2161–2175.
• [19] KLEIN L.C., Sol-gel technology for thin films, fibers, preforms, electronics and specilaty shapes, Noyes Publications, New Jersey, 1988.
• [20] SCRIVEN L.E., Better ceramics through chemistry III, Mat. Res. Soc., Pittsburgh, 1988.
• [21] REISFELD R., JORGENSEN C.K., Chemistry, Spectroscopy and Applications of Sol-Gel Glasses, Springer-Verlag, Berlin– Heidelberg, 1992.