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Tribology of stochastic phenomena on the hard tissue.
PublicationPraca przedstawia model matematyczny zjawisk tribologicznych podczas hodowli tkanek twardych, w tym chrząstek stawowych. Uwzględnia się chropowatości powierzchni hodowanych chrząstek. Problem tribologiczny uzewnętrzniony został koniecznością sterowania wartościami sił tarcia jakie powstają w cienkiej warstewce przyściennej opływanej tkanki cieczą biologiczną w trakcie hodowli. Taki model matematyczny nie był do tej pory rozpatrywany.
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Journal of Hard Tissue Biology
Journals -
Computational studies of friction forces for hard tissue cultivation in bioreactor.
PublicationPonieważ wymiana naturalego stawu na endoprotezę może być dokonywana 2-3 razy w życiu, problem leczenia przez transplantację tkanek chrzęstnych nabiera dużego znaczenia. Przeszczepów tkanki można dokonywać z sukcesem wiele razy. W bioreaktorach, środowisko hydrodynamiczne kształtuje hodowlę tkanek in vitro w obecności sił tarcia, poprzez bezpośrednie działanie na morfologię komórek a także poprzez pośrednie działanie na tkankę...
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Hard tissue samples as markers of occupational exposure in phosphatic fertilizer plant
PublicationW pracy opisano zastosowanie próbek włosów i paznokci do oceny narażenia pracowników zakładów nawozów fosforowych na zanieczyszczenie metalami ciężkimi. Jako metodę oznaczania 25 pierwiastków we włosach i paznokciach zastosowano aktywacje neutronową. Do opracowania wyników i ich oceny zastosowano szereg metod chemometrycznych.
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Degradable poly(ester-ether) urethanes of improved surface calcium deposition developed as novel biomaterials
PublicationBones, which are considered as hard tissues, work as scaffold for human body. They provide physical support for muscles and protect intestinal organs. Percentage of hard tissues in human body depends on age, weight, and gender. Human skeleton consists of 206 connected bones. Therefore, it is natural that the hard-tissue damage such as fractures, osteoporosis, and congenital lack of bone may appear. The innovative way of bone healing...
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Gelatin-Modified Polyurethanes for Soft Tissue Scaffold
PublicationRecently, in the field of biomaterials, which are being designed for soft tissue scaffolding, is growing the interest of their modification with natural polymers. Synthetic polymers are often hard, not easy to process and they do not possess fine biodegradable profile. From the other hand natural polymers are biocompatible, but weak when used alone. The combination of natural and synthetic polymers gives the suitable properties...
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Polyester-urethanes modified with gelatine for tissue scaffolds
PublicationNovel aliphatic PU foams, modified with gelatine, were obtained in a one-step polymerization process. Hard segments were obtained from 1,6-hexamethylene diisocyanate (HDI) and chain extenders 1,4-butanediol (BDO) or 2-(2-(2-hydroxyethoxy)ethoxy)ethanol (TG), soft segments were obtained from poly(ethylene-buthylene adipate) (EBO) polyol. We examined the PU foams for their sorption capability in canola oil, saline (0.9% NaCl water...
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Soft Tissue Retraction Maneuver in Cone Beam Computed Tomography Prior to Crown-Lengthening Procedure—A Technical Note
PublicationBackground: An accurate determination of the biological width and the relationship of the cemento-enamel junction with the border of the alveolar bone is crucial during a clinical crown-lengthening (CCL) procedure. The aim of this study was to present a technical note about the retraction techniques in cone beam computed tomography (CBCT) prior to CCL, highlighting the significant enhancement in procedural accuracy and predictability...
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Magnetic nanocomposites for biomedical applications
PublicationTissue engineering and regenerative medicine have solved numerous problems related to the repair and regeneration of damaged organs and tissues arising from aging, illnesses, and injuries. Nanotechnology has further aided tissue regeneration science and has provided outstanding opportunities to help disease diagnosis as well as treat damaged tissues. Based on the most recent findings, magnetic nanostructures (MNSs), in particular,...
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Therapeutic biomaterials – application in neurology and cardiology
PublicationBiomaterials are of interest in most medical fields. It's hard to imagine life without them. And due to the ever-increasing demand, scientists are developing new materials. Diseases of the nervous and cardiovascular systems are still a big problem, which are associated with a limited ability to regenerate brain or heart tissues. Therefore, this review discusses the advancement in biomaterial engineering for the treatment of neurological...