Search results for "Titanium"
showing 10 items of 878 documents
Photocatalytic activity of N-doped TiO2-based materials embedded with gold NPs for applications in antibacterial photodynamic therapy (aPDT)
Antibacterial photodynamic therapy (aPDT) is a potential treatment for antibiotic-resistant bacterial infections. It is based on the photosensitization of bacterial cells with exogenous agents that, when exposed to light, produce reactive oxygen species (ROS), such as OH-, O2-, H2O2. ROS can induce complex oxidative-reductive chains of reactions, resulting in damage of cellular components in target tissues1. Photocatalysts, like inorganic semiconductor oxides, represent an interesting class of materials to design new strategies for aPTD. As exposed to light of proper wavelengths, photocatalysts induce the formation of electron-hole pairs capable of producing a cascade of reactions suitable …
A novel TiO2-assisted magnetic nanoparticle separator for treatment and inactivation of bacterial contaminants in aquatic systems
2014
Ferromagnetic nanoparticles (Fe-nanoparticles) have been functionalized with recombinant poly- Glu [glutamic acid]-tagged silicatein, a biomineral-synthesizing enzyme from siliceous sponges that forms the inorganic silica skeleton of those animals. The biocatalytic activity of silicatein was used to form a titania (TiO2) shell around the iron nanoparticle core, using the water-soluble non- natural substrate titanium bis(ammonium lactato)-dihydroxide (TiBALDH). Thereby the diameter of the nanoparticles increases from 7 nm to ≈22 nm. This procedure also allows the layer-by-layer fabrication of titania/silica- Fe-nanoparticles. SEM/EDX analysis confirmed the presence of the Ti and Si signals i…
Ca-P-O thin film preparation, modification and characterisation
2011
Bioceramics are biocompatible ceramic materials, that interact with biological systems of the body to treat, strengthen or replace body functions. Most conventional bioceramics are oxide ceramics, glass ceramics and calcium phosphate ceramics. Among these calcium phosphates, synthetic hydroxyapatite has been extensively studied due to its biomimetic properties similar to that of natural bone. One approach to prepare synthetic hydroxyapatite is to first deposit amorphous Ca-P-O thin film and then by means of post deposition annealing initiate the formation of hydroxyapatite crystals to the film. In addition to the correct film composition and crystalline structure, other surface properties s…
Effect of titanium (IV) application on some enzymatic activities in several developing stages of red pepper plants
1994
Abstract The effect of two titanium (IV) compounds, titanium ascorbate and titanium chloride, on some enzymatic activities, such as catalase, peroxidase, lipoxygenase and nitrate reductase in seeds, embryos, and seedlings and adult plants of red pepper (Capsicum annuum L.), was studied. A stimulatory effect of titanium was observed for every iron‐depending enzyme studied at all developing stages as well as for nitrate reductase but only for whole plants. This occurs because Ti+3/Ti+4 catalizes the activity of iron and enhances iron‐dependent enzymes.
CCDC 154579: Experimental Crystal Structure Determination
2001
Related Article: P.Sobota, K.Przybylak, J.Utko, L.B.Jerzykiewicz, A.J.L.Pombeiro, M.F.C.Guedes da Silva, K.Szczegot|2001|Chem.-Eur.J.|7|951|doi:10.1002/1521-3765(20010302)7:5<951::AID-CHEM951>3.0.CO;2-F
CCDC 1978295: Experimental Crystal Structure Determination
2020
Related Article: Adrien T. Normand, Raluca Malacea-Kabbara, Rosita Lapenta, Aymeric Dajnak, Philippe Richard, Hélène Cattey, Anaëlle Bolley, Alfonso Grassi, Stefano Milione, Audrey Auffrant, Samuel Dagorne, Pierre Le Gendre|2020|Dalton Trans.|49|6989|doi:10.1039/D0DT00972E
CCDC 1871411: Experimental Crystal Structure Determination
2019
Related Article: Adrien T. Normand, Quentin Bonnin, Stéphane Brandès, Philippe Richard, Paul Fleurat-Lessard, Charles H. Devillers, Cédric Balan, Pierre Le Gendre, Gerald Kehr, Gerhard Erker|2019|Chem.-Eur.J.|25|2803|doi:10.1002/chem.201805430
CCDC 1887988: Experimental Crystal Structure Determination
2019
Related Article: Heli Laasonen, Johanna Ikäheimonen, Mikko Suomela, J. Mikko Rautiainen, Risto S. Laitinen|2019|Molecules|24|319|doi:10.3390/molecules24020319
CCDC 1985142: Experimental Crystal Structure Determination
2020
Related Article: Adrien T. Normand, E. Daiann Sosa Carrizo, Corentin Magnoux, Esteban Lobato, Hélène Cattey, Philippe Richard, Stéphane Brandès, Charles H. Devillers, Anthony Romieu, Pierre Le Gendre, Paul Fleurat-Lessard|2021|Chemical Science|12|253|doi:10.1039/D0SC04736H
CCDC 795475: Experimental Crystal Structure Determination
2011
Related Article: M.Ventura, C.R.de Arellano, M.E.G.Mosquera, G.Jimenez, T.Cuenca|2011|Dalton Trans.|40|5728|doi:10.1039/c0dt01393e