Category Archives: Year 2015 Issue 1

Green technologies in obtaining nanomaterials – using white grapes (Vitis vinifera) in the processes for the preparation of silver nanoparticles

Green technologies in obtaining nanomaterials – using white grapes (Vitis vinifera) in the processes for the preparation of silver nanoparticles DZIWOŃ K, PULIT-PROCIAK J., BANACH M

Please cite as: CHEMIK 2015, 69, 33–38 A process for preparing aqueous suspensions of nanosilver based on chemical reduction method using an aqueous extract from white grapes has been studied. Grape extract is a natural source of both redactors of silver ions, and stabilizers of the resulting nanoparticles. Extracts differing by parameters...
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Chitosan-modified superparamgnetic iron oxide nanoparticles: design, fabrication, characterization and antibacterial activity

Chitosan-modified superparamgnetic iron oxide nanoparticles: design, fabrication, characterization and antibacterial activity SHRIFIAN-ESFAHNI A., SALEHI M. T., NASR-ESFAHNI M., EKRAMIAN E.

Please cite as: CHEMIK 2015, 69, 19–32 The goal of this study was to develop an antibacterial activity system. To this end, we prepared using co-precipitation method a biocompatible nanocomposite: superparamagnetic iron oxide nanoparticles – chitosan. The morphological and magnetic properties of the nanocomposite were characterized by different techniques. At room temperature, the samples exhibit superparamagnetic behavior with...
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Structure, properties and applications of nano- and microstructure electrodes

Structure, properties and applications of nano- and microstructure electrodes KRZYCZMONIK P., SOCHA E.

Please cite as: CHEMIK 2015, 69, 11–18 This paper is a review of issues on nano- and microstructure electrodes. The problem of defining micro- and nanoelectrodes has been presented. Moreover, the connection between the size of electrode and the diffusion type used to describe the electrode processes has also been demonstrated. The selected group of materials used to construct microelectrodes has been described and selected...
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Thermal and mechanical properties of P(MAA-coMMA)/PVP/MWNTs nanocomposites

Thermal and mechanical properties of P(MAA-coMMA)/PVP/MWNTs nanocomposites LIU G.

Please cite as: CHEMIK 2015, 69, 3-10 Poly(methacrylic acid-co-methyl methacrylate) (P(MAA-coMMA)) networks were prepared via free radical copolymerization in the presence of linear poly(N-vinyl-2-pyrrolidone) (PVP) and multiwalled carbon nanotubes (MWNTs), i.e., P(MAA-co-MMA)/PVP/ MWNTs nanocomposites. The effect of MWNTs on the thermal and of mechanical properties of P(MAA-co-MMA)/PVP/MWNTs nanocomposites have been investigated. It was found that, MWNTs could provide P(MAA-co-MMA)/PVP/MWNTs nanocomposites with much improved mechanical properties. Thermal analysis showed that...
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