Changes in the Electric Parameters of Mesoporous Silicon under Adsorption of Plant Viruses

다국어 초록 (Multilingual Abstract)

Changes in the electric parameters of porous silicon under adsorption of nematode-transmitted polyhedral-type plant viruses, such as tomato ringspot virus, grapevine virus A and grapevine fan leaf virus, are investigated at room temperature. The pore sizes of the porous silicon are bigger than the characteristic sizes of the plant viruses, which are considered as having a spherical shape. Plant viruses adsorbed on the surface of porous silicon change the voltage-current and the voltage-capacitance characteristics. The changes in these characteristics depend on the nature of the adsorbed virus and are mostly caused by modifications in the characteristics of the potential barriers formed between nanowires which are thought to be composed of mesoporous silicon. The adsorbed biological particles (plant viruses) on the voltage-current characteristic redistribute the potential barriers in accordance with the applied voltage and the nature of the virus.

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