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974 results on '"Nowakowska, Maria"'

309. Corneal Epithelial Scaffolds Based on Chitosan Membranes Containing Collagen and Keratin.

Author

Grolik, Maria, Szczubiałka, Krzysztof, Wowra, Bogumił, Dobrowolski, Dariusz, Orzechowska-Wylęgała, Bogusława, Wylęgała, Edward, and Nowakowska, Maria

Subjects
CHITOSAN, EPITHELIAL cells, CORNEA, TISSUE scaffolds, COLLAGEN, CROSSLINKED polymers, KERATIN, BIODEGRADATION
Abstract

Novel biodegradable and resorbable polymeric membranes that can function as supports for corneal epithelial cells cultures were developed. The materials used to synthesize these supports are natural polymers (i.e., chitosan, collagen and keratin [7 and 17% w/w]). The membranes were crosslinked with a natural crosslinker, genipin. The physicochemical, mechanical, and biological properties of the membranes were determined. It was found that the addition of keratin results in the appearance of antibacterial properties againstEscherichia coliand in increased elasticity of the membranes. [ABSTRACT FROM AUTHOR]

Published
2015
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310. Fleksja rzeczownika w podręczniku historii

Author

Nowakowska, Maria

Abstract

Zadanie pt. Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki nr 885/P-DUN/2014 zostało dofinansowane ze środków MNiSW w ramach działalności upowszechniającej naukę.

Published
1991

342. TiO2-coated EP as a floating photocatalyst for water purification.

Author

Długosz, Maciej, Waś, Joanna, Szczubiałka, Krzysztof, and Nowakowska, Maria

Abstract

A water-floating photocatalyst composed of TiO[sub 2] deposited on perlite granules was synthesized and characterized. TiO[sub 2] was deposited by direct precipitation of titanium(IV) isopropoxide in the presence of perlite granules followed by calcination at three different temperatures. Temperature induced structural changes were monitored using UV-Vis, infrared and Raman spectroscopy, powder X-ray diffraction, BET surface adsorption, and scanning electron microscopy. The photocatalytic activity of the obtained materials was determined using a model reaction of the oxidative degradation of phenol. The ability of the obtained photocatalyst to float, combined with its ability to absorb solar light, makes it particularly well suited for the purification of shallow water reservoirs and industrial waste stabilization ponds. [ABSTRACT FROM AUTHOR]

Published
2014
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