7 research outputs found

    THE INTERACTION OF HUMAN OSTEOBLAST-LIKE Saos-2 CELLS WITH STAINLESS STEEL AND Si(100) COATED BY SILICALITE 1 FILMS

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    Interaction of osteoblast-like Saos-2 cells with stainless steel and Si(100) covered by a film of densely intergrown silicalite-1 crystals is investigated.  Surface properties  of the films are tuned by synthesis conditions and post-synthetic modifications.  A number of adhered cells is affected by surface morphology and wettability of the film

    THE INTERACTION OF HUMAN OSTEOBLAST-LIKE SAOS-2 CELLS WITH STAINLESS STEEL AND SI(100) COATED BY SILICALITE 1 FILMS

    Get PDF
    Interaction of osteoblast-like Saos-2 cells with stainless steel and Si(100) covered by a film of densely intergrown silicalite-1 crystals is investigated.  Surface properties  of the films are tuned by synthesis conditions and post-synthetic modifications.  A number of adhered cells is affected by surface morphology and wettability of the film.</p

    Analýza rizik v softwarových projektech

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    Plšek, J. Risk Analysis in Software Projects. Diploma thesis. Brno, 2020. This diploma thesis deals with the design and implementation of a web application whose aim is to try to make small start-ups available for risk analysis for their IT projects. Users must first register and then check their current status after identifying potential risks

    OPTIMISATION OF BUILDING STRUCTURES I (DBSO)

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    This contribution deals with a deterministic-based structural optimisation (DBS

    Highly Efficient Bulk-Crystal-Sized Exfoliation of 2D Materials under Ultra-High Vacuum

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    Two-dimensional (2D) materials represent the ultimate limit of miniaturization along the vertical direction, where several fascinating quantum mechanical effects—that are otherwise inaccessible—appear, generating widespread interest in fundamental and applied research. However, the preparation of scalable monolayers is a requirement that is hindered because of the lack of suitable synthesis and manipulation techniques. Here, we report a facile approach for obtaining bulk-crystal-sized 2D monolayers with a yield of almost 100% under ultra-high vacuum (UHV) conditions. We have exfoliated MoS2 on Au and Ag substrates to demonstrate the exfoliation process, where the spectroscopic measurements suggest a very strong dispersive interaction between the metal substrate and MoS2, resulting in a high strain field on the topmost layer of the bulk crystal, which is substantially relaxed in the subsequent layer. This vertically inhomogeneous distribution of the strain field reduced the magnitude of interlayer van der Waals interactions, resulting in the high selectivity of monolayer exfoliation. Along with the scalable exfoliation of monolayers, our method also paves a route to obtain 2D monolayers of materials that are unstable under ambient conditions

    Use of Liquid Chromatography with Electrochemical Detection for the Determination of Antioxidants in Less Common Fruits

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    Neurodegenerative disorders (NDD) have become the common global health burden over the last several decades. According to World Health Organization (WHO), a staggering 30 million people will be affected by Alzheimer's disease in Europe and the USA by 2050. Effective therapies in this complex field considering the multitude of symptoms associated with NDD indications, have not been found yet. Based on the results of NDD related studies, prevention appears to be the promise alternative. Antioxidative and anti-inflammatory properties are hypothesized for natural phenolics, a group of plant secondary products that may positively impact neurodegenerative diseases. In these studies, phenolic-rich extracts from less common fruit species: Blue honeysuckle (Lonicera edulis, Turcz. ex. Freyn), Saskatoon berry (Amelanchier alnifolia Nutt.), and Chinese hawthorn (Crateagus pinnatifida Bunge) were obtained and analyzed to detect neuroprotective substances content and establish a potential therapeutic value. High performance liquid chromatography with electrochemical detection was optimized and further applied on analysis of the extracts of less common fruit species. It was observed that Chinese hawthorn and Blue honeysuckle extracts are potent source of neuroprotective phenolic antioxidants. In accordance the results, it appears that the fruit or formulated products may have the potential for the prevention of neurodegenerative diseases
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