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A preliminary study on antifungal effect of TiO2-based paints in natural indoor light

A preliminary study on antifungal effect of TiO2-based paints in natural indoor light

The antifungal activity of four commercial photocatalytic paints (KEIM Ecosil ME, Titanium FA, Photo Silicate and Silicate D) in natural indoor light was investigated. The paints contained TiO2 in rutile and anatase crystalline forms as evidenced by means of the X-ray diffraction analysis. In most cases the paints inhibited growth of fungi viz. Trichoderma viride, Aspergillus niger, Coonemeria crustacea, Eurotium herbariorum, and Dactylomyces sp. The KEIM Ecosil ME paint displayed the highest antifungal effect in the light, which could be explained with the highest anatase content. The paint antifungal activity and the fungal sensitivity to the TiO2-mediated photocatalytic reaction both decreased in the following orders: KEIM Ecosil ME > Titanium FA > Photo Silicate > Silicate D and T. viride > Dactylomyces sp. > A. niger > E. herbariorum.

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Modification of industrial divinyl rubber by oxidative chlorophosphorylation and assess-ment of metal ion removal efficiency of obtained polymer sorbent

Abstract

The main goal of this study was the preparation of materials containing phosphoric functionalities on the base of industrial polymer - divinyl rubber and the assessment of their removal efficiency of heavy metals from aqueous solutions. The new method concerns the oxidative chlo-rophosphorylation of divinyl rubber by PCl3 with the following modification of obtained inter-mediates to create -PO(OH)2, -OPO(OH)2 groups in the polymer chain. The obtained modified polymers get some new properties such as complex formation and capability for ion exchange. The nature and distribution of phosphoric functionalities in the polymer were studied by the methods of NMRand FTIR- spectroscopy, thermal analysis and scanning electron microscopy. The sorption properties of synthesized polymers towards some cations (Cu+2, Ni+2, Co+2 and Zn+2) from water solutions have been tested. It has been shown that the metal removal efficiency of prepared material depends on pH of medium, initial concentration and type of metal ions.

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Graphene oxide-assisted synthesis of LiMn2O4 nanopowder

Abstract

The article reports sol-gel synthesis of nanosized spinel-type lithium manganese oxide LiMn2O4 (LMO) carried out in the presence of graphene oxide (GO) and its electrochemical lithium insertion ability. The synthesis was performed in an aqueous environment with lithium acetate and manganese acetate used as precursors and citric acid as a chelating agent. The material was characterized by X-ray diffraction, SEM microscopy, Raman spectroscopy and cyclic voltammetry. The calcination step totally eliminated graphene from the final product, nevertheless its presence during the synthesis was found to affect the resulting LiMn2O4 morphology by markedly reducing the size of grains. Moreover, potentials of electrochemical lithium insertion/deinsertion reactions have been shifted, as observed in the cyclic voltammetry measurements. Along with the diminished grain size the voltammetric curves of the graphene oxide-modified material exhibit higher oxidation and lower reduction peak currents. The study demonstrates that GO mediation/assistance during the sol-gel synthesis fosters more nanostructured powder and changes the electrochemical characteristics of the product

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Lewis acids immobilized in ionic liquid – application for the acetal synthesis

. (2006). U.S. Patent No. 7097674. 5. Pauley, E.P. & Neighbor, K.S. (2003). U.S. Patent No. 6512146. 6. Boutique, J.P., Burckett St., Laurent, J.Ch., Bouilliche, M., Beckholt, D.A., Murthy, S.R. & Tremblay, M.E. (2012). U.S. Patent No. 8293697. 7. Butora, G., Koeplinger, K.A., MacCoss, M., McMasters, D.R., Olsen, D.B. & Yang, L. (2009). U.S. Patent No. 7632821. 8. Smith, B.M. & Graham, A.E. (2006). Indium triflate mediated acetalization of aldehydes and ketones. Tetrahedron Lett . 47, 9317-9319. DOI: 10

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Investigation of applying calcium oxide for the removal of bitter substances from hop wastes

. i Pedagog., Warszawa. Kunze, W. (1999). Technology Brewing and Malting, Wyd. Piwochmiel/ VLB, Berlin (in Polish). Mączka, W., Anioł, M., Huszcza, E., Bartmańska A., Żołnierczyk A. & Wawrzeńczyk, Cz. (2009). Higher plants-mediated degradation of hop bitter acids, Przem. Chem., 88/ 5, 509-511 (in Polish). Best Available Techniques (BAT), (2005). Guidelines for the brewing industry, Ministry of Environmental Protection, Warszawa (in Polish). Skowroński, B

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Nanospheres caped Pt(II) and Pt (IV): synthesis and evaluation as antimicrobial and Antifungal Agent

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Solid inorganic peroxy compounds in environmental protection

. Anonim. PermeOx Plus. Panther Technologies Inc., 2004 . Vogt C., Alfreider A., Lorbeer H., Hoffmann D., Wuensche L., Babel W.: Bioremediation of chlorobenzenecontaminated groundwater in an in situ reactor mediated by hydrogen peroxide. J Contam Hydrol. 68(1 - 2)121 - 41, 2004 . Zappi M., White K., Hwang H. M., Bajpai R., Qasim M.: The fate of hydrogen peroxide as an oxygen source for bioremediation activities within saturated aquifer systems. J. Air Waste Manag. Assoc. 50, 10, 1818 - 30, 2000

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Effects of processing parameters on the properties of amphiphilic block copolymer micelles prepared by supercritical carbon dioxide evaporation method

Inversion. Ind. Eng. Chem. Res. 54, 8147–8156. DOI: 10.1021/acs.iecr.5b01452. 26. Nguyen, V.H., Haldorai, Y., Pham, Q.L. & Shim, J.J. (2011). Supercritical Fluid Mediated Synthesis of Poly(2-hydroxyethyl methacrylate)/Fe 3 O 4 Hybrid Nanocomposite. Mater. Sci. Eng. B-Adv. Funct. Solid-State Mater. 176 , 773-778. DOI: 10.1016/j.mseb.2011.02.020. 27. Jiao, Z., Liu, N. & Chen, Z.M. (2012). Selection Suitable Solvents to Prepare Paclitaxel-loaded Micelles by Solvent Evaporation Method. Pharm. Dev. Technol. 17 , 164–169. DOI: 10

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The Formation of Polycomplexes of Poly(Methyl Vinyl Ether-Co-Maleic Anhydride) and Bovine Serum Albumin in the Presence of Copper Ions

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Cytotoxicity and genotoxicity of GO-Fe3O4 hybrid in cultured mammalian cells

.S23392. 3. Wang, K., Ruan, J., Song, H., Zhang, J., Wo, Y., Guo, S. & Cui, D. 2011. Biocompatibility of graphene oxide. Nanoscale Res. Lett. 6, 8-16. DOI: 10.1007/s11671-010-9751-6. 4. Balandin, A.A. (2011). Thermal properties of graphene and nanostructured carbon materials. Nat. Mater. 10, 569-581. DOI: 10.1038/nmat3064. 5. Chung, I.M., Rahuman, A.A., Marimuthu, S., Kirthi, A.V., Anbarasan, K. & Govindasamy, R. 2015. An investigation of the cytotoxicity and caspase-mediates apoptotic effect of green synthesized zinc

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