Autor: Pyza, Maciej - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Band keratopathy - chelation or therapeutic photokeratectomy
Autorzy:: Alsoubie, Ismael
Pyza, Aneta
Kaczmarek, Julia
Czarnacka, Kinga
Prokop, Dominika
Kuźlik, Bartosz
Chmura, Alicja
Pandey, Ada
Gawlak, Małgorzata
Żaczek, Bartłomiej
Sajak-Hydzik, Katarzyna
Pawlicka, Ilona
Piskorz, Agnieszka
Kozak, Maciej
Roszkowska, Anna Maria
Powiązania:: https://bibliotekanauki.pl/articles/23202547.pdf
Data publikacji:: 2023-09-30
Wydawca:: Medical Education
Tematy:: band keratopathy
calcium deposits
EDTA chelation
phototherapeutic keratectomy
excimer laser
corneal degeneration
ethylenediaminetetraacetic acid
Opis:: Corneal degeneration changes corneal shape and causing its translucency disappear. The division of corneal degeneration is made according to the type deposited in its layer. Among the factors causing keratopathy, the following can be mentioned: iron, collagen, hemosiderins, and calcium salts, the last ones cause band keratopathy. This feature is characteristic of the deposition of opacities in the superficial layers of the cornea. In the treatment of band keratopathy, ethylenediaminetetraacetic acid chelation and excimer laser phototherapeutic keratectomy are discussed.
Źródło:: OphthaTherapy; 2023, 10, 3; 195-199
2353-7175
2543-9987
Pojawia się w:: OphthaTherapy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Fabrication of filter membrane of organic compound to protect the upper respiratory tract from viral and bacterial infections, including SARS-CoV-2, compliant with FFP2 standard
Autorzy:: Brzezińska, Natalia
Pyza, Maciej
Kłeczek, Anna
Kulińska, Karolina
Gabor, Jadwiga
Garczyk-Mundała, Żaneta
Świnarew, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/24200848.pdf
Data publikacji:: 2022
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: face masks
viral and bacterial infections
betulin
filtering membrane
FFP2 standard
Opis:: Bacteria, viruses, and other pathogens in the surrounding environment are biological threat to human health and life. The development of various diseases in the world, as well as the pandemic caused by the rapid spread of the SARS-CoV-2 virus, have increased the demand for the use of upper respiratory protection devices. Out of concern for the natural environment, the aim of this work was to develop an innovative solution i.e. the FFP3 filtering membrane made of an organic compound. First, preliminary tests of the FFP2 mask were carried out to assess the chemical composition, morphological structure - fibers geometry, thickness, density, and arrangement. The FTIR analysis study was conducted to confirm that the main chemical in the mask was polypropylene (PP) and high-density polyethylene (HDPE). Optical, confocal microscopy and computer microtomography studies showed the fibers structure. They were densely arranged and their thickness was less than 1 den. The fiber structure of the FFP2 mask was also compared before and after immersing in betulin, an organic compound obtained from birch bark via the Soxhlet extraction. In addition, the assessment of microbiological activity was made on the reference strain Escherichia coli ATCC 25922, and the anti-inflammatory activity on normal human skin fibroblasts on polycarbonate with betulin. The studies showed that betulin supported the material antibacterial and anti-inflammatory properties.
Źródło:: Engineering of Biomaterials; 2022, 25, 166; 2--11
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Polylactide-based composite materials for 3D printing and medical applications - the effect of basalt and silicon dioxide addition
Autorzy:: Pyza, Maciej
Brzezińska, Natalia
Kulińska, Karolina
Gabor, Jadwiga
Barylski, Adrian
Aniołek, Krzysztof
Garczyk-Mundała, Żaneta
Adebesin, Kayode
Swinarew, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/24200849.pdf
Data publikacji:: 2022
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: polylactide
3D printing
polymer
basalt
SiO2
Opis:: Polymers are compounds that play a key role in the development of many fields of science, including emergency medicine. Currently, there are increasing requirements for biomedical polymers in terms of producing lighter and more ecological equipment. To meet these requirements, a composite material was developed: polylactide (PLA) with the addition of modifiers - basalt and silicon dioxide (SiO2). PLA was chosen as a biodegradable polymer that naturally decomposes in the environment. This is very important, regarding a large number of single-use materials made of microplastics polluting the environment. The samples were made by additive 3D printing and then immersed in swimming pool water, chlorine solution, and distilled water. FTIR analysis showed the influence of the environment on the intensity and shift of PLA absorption bands. Microscopic analysis provided information on surface morphology, roughness, and potential defects. Tribological and micromechanical tests showed that the additions of basalt and silica to the PLA material influenced the morphological structure and the average area of the wear trace, volumetric wear, and average coefficient of friction. In the presence of chlorine solution, distilled water, and pool water under real conditions, the SiO2 addition made the PLA material more resistant to abrasion, as compared to the basalt addition. However, additives did not significantly affect the PLA material hardness, and the samples with basalt turned out to be more resistant to deformation.
Źródło:: Engineering of Biomaterials; 2022, 25, 166; 29--39
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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