Experimental device for study of the thermal stimulated direct current in the composite materials.

Presents the device for analysis the thermally stimulated electrical conductivity of composites in the wide temperature range. The main advantage of the module in relation to those described earlier is that it allows experiments both in the mode of measuring the current of thermally stimulated depolarization (TSDC) at low temperatures, and in the mode of measuring the thermally stimulated conductivity current (TSCC) up to very high temperatures. Using PMMA/PVDF mixtures as an example, it is shown that the TSDC method can be used to temperature transitions analysis in the many composite materials at low temperatures.

On diamond surface properties and interactions with neurons.

In this paper we report about the role the diamond surface morphology and atomic termination plays in the survival and viability of neuronal cells, which represent an appropriate experimental model for the development of cell-based biosensors. The samples we have investigated were both CVD homoepitaxial diamond films and nanocrystalline diamond layers deposited on quartz substrates. Different surface terminations were induced through exposure to atomic hydrogen and to intense UV irradiation.