Extinguishing visible photoluminescence of porous silicon stimulated by antigen-antibody immunocomplex formation

Nickolaj F. Starodub; Leonid L. Fedorenko; Valentyna M. Starodub; S. P. Dikiy; Sergey V. Svechnikov

doi:10.1117/12.266810

6 February 1997 Extinguishing visible photoluminescence of porous silicon stimulated by antigen-antibody immunocomplex formation

Nickolaj F. Starodub, Leonid L. Fedorenko, Valentyna M. Starodub, S. P. Dikiy, Sergey V. Svechnikov

Author Affiliations +

Proceedings Volume 2968, Optical Organic and Semiconductor Inorganic Materials; (1997) https://doi.org/10.1117/12.266810
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

The photoluminescence of the porous silicon obtained by special procedure with the usage of the chemical and laser beam treatment of silicon crystal was investigated in water, buffer and solution containing sodium chloride. It was demonstrated that the intensity of the photoluminescence did not practically change at the above mentioned conditions as well as after antigen or antibody immobilization on the porous silicon surface. But this parameter of the photoluminescence dramatically decreased in case of specific immune complex formation on the silicon surface. The level of the photoluminescence extinguishing depended on duration and intensity of immune reaction. It is proposed to use discovered effect for creation of the immunosensors based on the direct registration of immunocomplex formation.

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Nickolaj F. Starodub, Leonid L. Fedorenko, Valentyna M. Starodub, S. P. Dikiy, and Sergey V. Svechnikov "Extinguishing visible photoluminescence of porous silicon stimulated by antigen-antibody immunocomplex formation", Proc. SPIE 2968, Optical Organic and Semiconductor Inorganic Materials, (6 February 1997); https://doi.org/10.1117/12.266810

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