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    Tytuł:
    Application of Spontaneous Oxidation Processes of Zero-valent Iron and Electrocoagulation for Reactive Black 5 Removal
    Zastosowanie procesów samorzutnego utleniania żelaza na zerowym stopniu utlenienia (ZVI) oraz elektrokoagulacji (EC) w usuwaniu Reactive Black 5
    Autorzy:
    Wysocka, I.
    Filipkowska, U.
    Jóźwiak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/233177.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    dye removal
    zero-valent iron
    electrocoagulation
    reactive dyes
    usuwanie barwników
    utlenianie żelaza
    elektrokoagulacja
    barwniki reaktywne
    Opis:
    Two methods of Reactive Black 5 dye removal were compared in this work, namely electrocoagulation (EC) and one based on spontaneous electrochemical oxidation of zero-valent iron (ZVI). Both methods are based on electrode processes and the sorption process and allow to achieve a similar effectiveness of dye removal. In the case of ZVI, however, a longer contact time or a greater surface area of the electrodes applied is necessary. In turn, the ZVI enables to conduct the processes of dye removal with no requirement for an external source of electric current (lower exploitation inputs). The study demonstrated that the application of both the ZVI method and EC is especially advisable in the case of lower initial concentrations of dye in the solution, i.e. the higher the concentration, the lower the contribution of electrode processes in dye removal from the solution and the greater the contribution of sorption processes.
    W ramach niniejszej pracy porównano dwie metody usuwania barwnika Reactive Black 5. Metodę elektrokoagulacji (EC), oraz metodę opartą na samorzutnym elektrochemicznym utlenianiu żelaza na 0 stopniu utlenienia (ZVI). Obie metody wykorzystują procesy elektrodowe oraz procesy sorpcji, umożliwiając uzyskanie podobnej efektywność usuwania barwnika. W przypadku ZVI wymagany jest jednak dłuższy czas kontaktu, lub większa powierzchnia zastosowanych elektrod. ZVI umożliwia jednak przeprowadzenie procesów usuwania barwy, bez konieczności stosowania zewnętrznego źródła prądu (mniejsze nakłady eksploatacyjne). Badania wykazały, że zastosowanie zarówno metody ZVI i EC ma szczególne uzasadnienie w przypadku niższych stężeń początkowych barwnika w roztworze. Im wyższe stężenie, tym udział procesów elektrodowych w usuwaniu barwy roztworu jest mniejszy a przewagę zyskują procesy sorpcji.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2017, 4 (124); 121-128
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thallium hyperaccumulation in Polish populations of Biscutella laevigata (Brassicaceae)
    Autorzy:
    Wierzbicka, M.
    Pielichowska, M.
    Abratowska, A.
    Wilkomirski, B.
    Wysocka, I.
    Panufnik-Medrzycka, D.
    Bulska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/19734.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    Biscutella laevigata L. is known as a Tl hyperaccumulator. In Poland Biscutella laevigata occurs in the Tatra Mts (Western Carpathians) and on the calamine waste heap in Bolesław near Olkusz (Silesian Upland). The purpose of this work was to evaluate whether plants of both populations were able to accumulate an elevated amount of thallium in their tissues. The plants were cultivated in calamine soil in a glasshouse for a season and studied at different ages – from 2-week-old seedlings to 10-month-old adults. Additionally, the plants were grown for ten weeks in calamine soil with EDTA to enhance Tl bioavailability. The total content of Tl in plant tissues after digestion was determined by ICP-MS, whereas its distribution in leaves was studied by LA-ICP-MS. Of the total content of Tl in the soil in the range of (15.2–66.7) mg·kgˉ¹d.m., only (1.1–2.1) mg·kgˉ¹d.m. was present in a bioavailable form. The mean content in all the plants grown on the soil without EDTA was 98.5 mg·kgˉ¹d.m. The largest content was found in leaves – 164.9 mg·kgˉ¹d.m. (max. 588.2 mg·kgˉ¹d.m.). In the case of plants grown on the soil enriched with EDTA, the mean content in plants increased to 108.9 mg·kgˉ¹d.m., max. in leaves – 138.4 mg·kgˉ¹d.m. (max. 1100 mg·kgˉ¹d.m.). The translocation factor was 6.1 in the soil and 2.2 in the soil with EDTA; the bioconcentration factor amounted to 10.9 and 5.8, respectively. The plants from both populations did not contain a Tl amount clearly indicating hyperaccumulation (100–500 mg·kgˉ¹d.m.), however, high (>1) translocation and bioconcentration factors suggest such an ability. It is a characteristic species-wide trait; B. laevigata L. is a facultative Tl hyperaccumulator. The largest Tl amount was located at the leaf base, the smallest at its top. Thallium also occurred in trichomes, which was presented for the first time; in this way plants detoxify Tl in the above-ground parts. Leaves were much more hairy in the Bolesław plants. This is an adaptation for growth in the extreme conditions of the zinc-lead waste heap with elevated Tl quantity.
    Źródło:
    Acta Biologica Cracoviensia. Series Botanica; 2016, 58, 2
    0001-5296
    Pojawia się w:
    Acta Biologica Cracoviensia. Series Botanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isotope effects of gallium and indium in cation exchange chromatography
    Autorzy:
    Dembiński, W.
    Herdzik, I.
    Skwara, W.
    Bulska, E.
    Wysocka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/146163.pdf
    Data publikacji:
    2006
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    isotope separation
    chemical isotope effect
    ion-exchange chromatography
    Opis:
    The isotope effects of gallium (69/71Ga) and indium (113/115In) have been determined in the system: strong cation exchanger (Dowex 50-X8)/HCl. The sings of gallium and indium effects were opposite, i.e., the heavier isotope of gallium was fractionated into the resin phase, while the heavy isotope of indium was fractionated into the liquid phase. The values of unit separation gains were found to be +3.0 ´ 10-5 for gallium and –2.0 ´ 10-4 for indium. A possible explanation of the effects is proposed.
    Źródło:
    Nukleonika; 2006, 51, 4; 217-220
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biomaterials with antibacterial activity
    Autorzy:
    Wysocka, K.
    Buzalewicz, I.
    Wieliczko, A.
    Kowal, K.
    Stręk, W.
    Podbielska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/284386.pdf
    Data publikacji:
    2008
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    biomaterials
    silver nanoparticles
    antibacterial activity
    Opis:
    The sol-gel derived silica spheres with surfaces modified by silver nanoparticles were used to enhance the photodynamic effect. The silica nanoparticles were prepared by modified Stöber synthesis. The diameter of obtained silica spheres was ca. 100 nm. These silica spheres we used as a carrier for noble nanoparticles. It was shown that Ag-Au nanoparticles have an antibacterial activity against Escherichia coli. This effect depends on the nanoparticles concentration and it is stronger for higher concentrations. Laser irradiation enhances this effect, and starting from certain concentration it is possible to kill Escherichia coli, totally, when using laser light.
    Źródło:
    Engineering of Biomaterials; 2008, 11, no. 81-84; 119-121
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Type III Polyglandular Autoimmune Syndromes in children with type 1 diabetes mellitus
    Autorzy:
    Ben-Skowronek, I.
    Michalczyk, A.
    Piekarski, R.
    Wysocka-Lukasik, B.
    Banecka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/49668.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Medycyny Wsi
    Opis:
    Introduction: Type III Polyglandular Autoimmune Syndrome (PAS III) is composed of autoimmune thyroid diseases associated with endocrinopathy other than adrenal insufficiency. This syndrome is associated with organ-specific and organ-nonspecific or systemic autoimmune diseases. The frequency of PAS syndromes in diabetic children is unknown. Objectives: The aim of the study was to evaluate the incidence of PAS III in children with diabetes mellitus type 1. Patients and methods: The study consisted of 461 patients with diabetes mellitus type 1(T1DM), who were 1-19 years of age. TSH, free thyroxin, TPO autoantibodies, and thyroglobulin autoantibodies were determined annually. Autoimmune Hashimoto’s thyroiditis was diagnosed in children with positive tests for TPO Ab and Tg Ab and thyroid parenchymal hypogenicity in the ultrasound investigation. Elevated TSI antibodies were used to diagnose Graves’ disease. Additionally, Anti-Endomysial Antibodies IgA class were determined every year as screening for celiac disease. During clinical control, other autoimmune diseases were diagnosed. Adrenal function was examined by the diurnal rhythm of cortisol. Results: PAS III was diagnosed in 14.5% children: PAS IIIA (T1DM and autoimmune thyroiditis) was recognized in 11.1 % and PAS III C (T1DM and other autoimmune disorders: celiac disease, and JIA, psoriasis and vitiligo) in 3.5% children. PAS IIIA was more prevalent in girls than in boys – 78.4% versus 21.6% (p<0.05). PAS III was observed between 1-5 years of life in 66.6% children; the frequency decreased in consecutive years and successively increased in the adolescence period to 22.7%. Conclusions: PAS III occurs in 14.5% of children with DM type1 and the incidence is positively correlated with patients’ age and female gender. Children with PAS III should be carefully monitored as a group at risk for the development of other autoimmune diseases.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2013, 20, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanotechnology for biomedical applications - enhancement of photodynamic activity by nanomaterials
    Autorzy:
    Ulatowska-Jarża, A.
    Pucińska, J.
    Wysocka-Król, K.
    Hołowacz, I.
    Podbielska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/200175.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    silver-doped nanomaterials
    silica-titania (SiO2-TiO2) materials
    photodynamic activity
    fluorescence enhancement
    Opis:
    Over the last two decades nanotechnology has become one of the most dynamically evolving field of research. The unique properties of nanomaterials, not disclosing at microscale, are examined and exploited to extend our understanding of the interactions taking place at atomic or molecular level. Those findings affect research in many areas, like e.g. alternative energy sources, electronics, physics and medicine. In this paper, the possibility of using nanomaterials for the enhancement of photodynamic activity, is discussed. A brief review on drug-delivery facilitating nanomaterials, regarding their characteristic features, is presented. An exemplary application of silver-doped nanomaterials for enhancement of photodynamic properties of two photosensitizers: Photolon and Protoporphyrin IX, is described. Influence of silver-doped nanomaterials addition on the fluorescence intensity of photosensitizers immobilized in silica-titania (SiO2-TiO2) sol was examined via VIS spectroscopy. Influence of sonication on the fluorescence enhancement was also investigated. It was demonstrated that the fluorescence enhancement of photosensitizers depends on the concentration of both: photosensitizer and silver-doped nanoparticles.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 3; 253-261
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of simvastatin on red blood cell linein porcine bone marrow
    Autorzy:
    Sobiech, P.
    Żarczyńska, K.
    Snarska, A.
    Rytel, L.
    Wysocka, D.
    Gonkowski, S.
    Pomianowski, A.
    Babińska, I.
    Otrocka-Domagała, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087869.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    simvastatin
    proerythroblast
    blood
    erythroblast
    pig
    Źródło:
    Polish Journal of Veterinary Sciences; 2017, 4; 811-814
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Annual observations of radon activity concentrations in dwellings of Silesian Voivodeship
    Autorzy:
    Wysocka, M.
    Kozłowska, B.
    Dorda, J.
    Kłos, B.
    Chmielewska, I.
    Rubin, J.
    Karpińska, M.
    Dohojda, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/148558.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    radon
    apartment buildings
    geology
    seasonal changeability
    Opis:
    In the paper, results of year-long measurements of radon levels in dwellings on the premises of Silesian Voivodeship are presented. Track etched detectors with polymer CR-39 foils were used in the investigations. As the studied buildings were located in different regions of Silesian Voivodeship, therefore results of measurements were analysed due to possible influence of geological structure or effect of mining operations in places, where given dwellings were situated. Elevated concentrations of radon were measured mostly in dwellings located in areas, where permeable Triassic limestone and dolomite occur, as it has been predicted. On the other hand, the impact of mining activity such as disintegration of rock-body and activation of faults plays an important role, too, because it enables radon migration and its entry into buildings. Beside the analysis of seasonal variations of radon activity concentration, the impact of temperature and pressure on these fluctuations outdoor and indoor buildings has been analysed.
    Źródło:
    Nukleonika; 2010, 55, 3; 369-375
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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