In this work a novel antibacterial surface composed of an organic-inorganic hybrid matrix of tetraorthosilicate and a polyelectrolyte is presented. A precursor solution of tetraethoxysilane (TEOS) and poly(acrylic acid sodium salt) (PAA) was prepared and subsequently thin films were fabricated by the dip-coating technique using glass slides as substrates. This hybrid matrix coating is further l...

Preparation and gas barrier characteristics of polysilazane-derived silica thin films formed on PET by simultaneously applying ultraviolet-irradiation and heattreatment have been investigated. Water-vapor-permeability of the thin film formed by UV irradiation at 100°C was 0.03 g/m2・day, indicating the good water-vapor resistance. The values of gas barrier characteristics depended on the substra...

Because of the similarity in structure between diiodotyrosine and thyroxine, Harington and Barger (1) suggested that the former is the precursor of thyroxine in the thyroid gland. The formation of thyroxine from diiodotyrosine has been demonstrated lately in vitro (2, 3). Recent data (4, 5) obtained with radioiodine used without carrier indicate the rates of incorporation of iodine into the var...

The possibility to deposit purely organic and hybrid inorganic-organic materials in a way parallel to the state-of-the-art gas-phase deposition method of inorganic thin films, i.e., atomic layer deposition (ALD), is currently experiencing a strongly growing interest. Like ALD in case of the inorganics, the emerging molecular layer deposition (MLD) technique for organic constituents can be emplo...

The best electrode performance of metal oxide-graphene nanocomposite material for lithium secondary batteries can be achieved by using the colloidal mixture of layered CoO2 and graphene nanosheets as a precursor. The intervention of layered CoO2 nanosheets in-between graphene nanosheets is fairly effective in optimizing the pore and composite structures of the Co3O4-graphene nanocomposite and a...

Lateral size, surface chemistry, and properties are varied in inorganic monolayers based on a transition metal-oxide. A variety of inorganic monolayers with their emergent properties have been studied in recent decades. However, it is not easy to tune the lateral size, surface chemistry, and dispersibility of monolayers by typical synthetic methods. In the present work, a new approach is develo...

We introduce a novel method of inorganic synthesis using the catalytic and structure-directing properties of the demosponge enzyme silicatein-alpha. Recombinant silicatein-alpha was displayed at the surface of Escherichia coli cells by fusion to outer membrane protein A and used to biocatalytically direct the formation of layered and amorphous titanium phosphates from a small water-soluble prec...

Organic-inorganic hybrid materials overcome drawbacks associated with alginate hydrogels. In this work, covalently coupled silica-alginate hybrids were prepared by Schiff base formation and sol-gel reaction using dialdehyde (ADA), (3-Aminopropyl) triethoxysilane (APTES), APTES/tetraethylorthosilicate (TEOS) precursors. The influence of the polysaccharide/inorganic ratio, nature inorganic precur...

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 1 wileyonlinelibrary.com through the excitation of OH vibrations.[5] On the other hand, the mechanical properties of supramolecular gels typically suffer from the relatively weak noncovalent interactions among the constituent components.[6] This drawback also limits construction of free-standing objects from the luminescent gels.[7] Herein for ...

Since their discovery, carbon dots have attracted a great deal of interest for perspective biological applications. Nevertheless, the quenching photoluminescence represents an interesting feature quantitative analysis in very low concentration many species. A particular approach production is use biochar, carbonized biomass, as precursor. In this work, we overview main achievements accomplished...