The development of epithelial ovarian cancer is associated with changes in the peritoneal cavity microenvironment. Tumor cells produce different factors, which impairs differentiation, maturation, and function of antigen-presenting cells. In this review, we focus on selected cell populations in the peritoneal cavity immune system and their potential role in epithelial ovarian cancer immunopathogenesis. We devote most attention to dendritic cells because they are considered to be superior in their antigen-presenting ability, compared with both macrophages and B lymphocytes. We also present a brief characterization of tumor-infiltraiting cells in epithelial ovarian cancer patients.

Residues obtained after wood biomass liquefaction were used as precursors for the synthesis of two activated biochars. The source of biomass liquefaction constituted of industrial wood processing by‐products, including bark and wood sawdust. The liquefied residues were analyzed in terms of chemical components and structure. Carbonization under nitrogen atmosphere followed by physical CO2 activation allowed to obtain microporous activated carbons with specific surface areas of 741 and 522 m2 g−1, and micropore volumes of 0.38 and 0.27 cm3 g−1, respectively. The obtained activated carbons were used to remove toxic hexavalent chromium from the aquatic environment. The observed sorption capacities were 80.6 mg g−1 versus 36.7 mg g−1 for wood bark‐derived and wood sawdust‐derived carbon, respectively, indicating a key role of the wood residue source in the effectiveness of Cr(VI) removal by resulting carbons. Despite the dominant microporous structure, the adsorption kinetics was surprisingly fast, especially for the bark‐derived carbon, since the adsorption equilibrium was reached within 2 h. The sorption mechanism of chromium was based on the carbon surface‐mediated reduction of toxic hexavalent form to its non‐toxic trivalent form, as confirmed by the X‐ray photoelectron analysis. Therefore, the residues from wood liquefaction can be easily converted into porous activated biocarbons capable of adsorbing significant amounts of hazardous Cr(VI) while reducing them to non‐toxic Cr(III).

The aim of this study was to evaluate the quality of virgin oil pressed from spring rape seeds cultivated with the use of colloidal nanosilver and nanocopper solutions for processing seeds and as foliar fertilizer. The results show that the use of nanometals for seed processing and foliar fertilization increased the content of carotenoid pigments in the oil. The pigment concentration was higher compared to oil pressed from control seeds. The application of nanocolloids onto the seeds and subsequently on the growing plants contributed to the increase of the oxidative stability of oils. Both the acid number (AN) and peroxide number (PN) values were higher in the studied oils as compared to the control, but did not exceed the required allowable levels. Increased content of silver ions and slightly increased copper content was observed in the pressed oil. An infrared spectral analysis (Fourier-Transformed Infra-Red) conducted in combination with chemometrics allowed the classification of the studied oils in terms of their chemical composition. The analysis revealed the presence of bands characteristic of Cu-O-H vibrations after soaking the seeds and spraying the plants with copper nanocolloid, and of C-O-Ag after fertilization with silver nanocolloid.Agronomy 2019, 9, 643 2 of 22 nutrients by plants [6]. The use of nanoparticles offers a viable alternative to the currently prevalent methods of plant protection [7]. Examples of nano-fertilizers have also been described, which, compared to traditional fertilizers, minimize nutrient losses [8]. The use of nanoparticles in fertilizers facilitates absorption, accelerates plant growth, and increases yields [9,10].Virgin and cold-pressed oils contain mainly triacylglycerols (approximately 95%) and a relatively small content of diacylglycerols, monoacylglycerols, and free fatty acids, including compound groups such as phospholipids, tocopherols and tocotrienols, free and esterified sterols, hydrocarbons (squalene), triterpene alcohols, carotenoids, chlorophylls and other pigments, which constitute highly valued nutritional ingredients [11][12][13]. The inclusion of carotenoids in human diet reduces the content of lipid peroxides in blood plasma, which helps to prevent diseases caused by ROS (reactive oxygen species). Among other benefits, carotenoids reduce the risk of cardiac infraction, stroke, myocardial ischemia, cataract, age-related macular degeneration, Alzheimer's disease, cancer, and other age-related degenerative diseases [14].Eating food containing oxidized lipids may facilitate the formation of reactive oxygen species and free radicals, which in turn may lead to the oxidation of biological membranes and increased mutagenic, genotoxic, and angiotoxic potential. The same can also contribute to the development of cardiovascular disorders [15]. The process of oxidation is influenced by numerous factors including the availability of oxygen, temperature, heavy metals and metal ions (Ca 2+ and Fe 3+ ), exposure to light and various chemical factors facilitating the init...

The formation of hierarchical, multimodal porosity materials with controlled shape and size of pores is the essential challenge in materials science. Properties of silica materials depend largely on different features: crystal structure, dispersity, surface composition, and porosity as well as the method of preparation and possible modification. In this paper, multimodal silicas obtained using different additives are presented. A-50 and A-380 aerosils and wide-porous SiO 2 milled at 300 rpm were used as the additives in the sol stage at 20 • C, the sol-gel stage followed by hydrothermal modification (HTT) at 200 • C, or in the mechanochemical treatment (MChT) process. The characterizations were made by application of N 2 adsorption/desorption, SEM imaging, quasi-isothermal thermogravimetry (Q-TG), dynamic thermogravimetry/derivative thermogravimetry/differential thermal analysis (TG/DTG/DTA), and cryoporometry differential scanning calorimetry (DSC) methods. Results showed that such a one-step preparation method is convenient and makes it possible to obtain multimodal silicas of differentiated porous structures and surface chemistry.

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