Applications of zinc oxide nanowires for bio-photonics and bio-electronics

Magnus Willander; O. Nur; M. Fakhar-e-Alam; J. R. Sadaf; M. Q. Israr; K. Sultana; Syed M. Usman Ali; M. H. Asif

doi:10.1117/12.879497

14 March 2011 Applications of zinc oxide nanowires for bio-photonics and bio-electronics

Magnus Willander, O. Nur, M. Fakhar-e-Alam, J. R. Sadaf, M. Q. Israr, K. Sultana, Syed M. Usman Ali, M. H. Asif

Proceedings Volume 7940, Oxide-based Materials and Devices II; 79400F (2011) https://doi.org/10.1117/12.879497
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

Using zinc oxide (ZnO) nanostructures, nanorods (NRs) and nanoparticles (NPs) grown on different substrates (sub-micrometer glass pipettes, thin silver wire and on plastic substrate) different bio-sensors were demonstrated. The demonstrated sensors are based on potentiometric approach and are sensitive to the ionic metals and biological analyte in question. For each case a selective membrane or enzyme was used. The measurements were performed for intracellular environment as well as in some cases (cholesterol and uric acid). The selectivity in each case is tuned according to the element to be sensed. Moreover we also developed photodynamic therapy approach based on the use of ZnO NRs and NPs. Necrosis/apoptosis was possible to achieve for different types of cancerous cell. The results indicate that the ZnO with its UV and white band emissions is beneficial to photodynamic therapy technology.

Citation Download Citation

Magnus Willander, O. Nur, M. Fakhar-e-Alam, J. R. Sadaf, M. Q. Israr, K. Sultana, Syed M. Usman Ali, and M. H. Asif "Applications of zinc oxide nanowires for bio-photonics and bio-electronics", Proc. SPIE 7940, Oxide-based Materials and Devices II, 79400F (14 March 2011); https://doi.org/10.1117/12.879497

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