Surface Modification of Titanium Dioxide Thin Film for ss-DNA Detection

Abstract:

This paper studies the Capacitance-Frequency of titanium dioxide (TiO₂) thin film-based interdigitated electrodes (IDEs) for ss-DNA immobilization. TiO₂ thin film was deposited on P-type silicon dioxide (SiO₂) (1 0 0) substrates using monoethanolamine (MEA) sol-gel route by spin-coating method. Titanium butoxide was used as a precursor source while ethanol and MEA were used as a disperser and stabilizer respectively. Metal IDEs of aluminium (Al) was deposited on the synthesized films for the electrical characterization. From the electrical data, it proves that the synthesized TiO₂ thin film is effective and can be used for the synthesis of TiO₂ thin films with biomedical application.

• Periodical: Advanced Materials Research (Volume 832)
• Pages: 124-127
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.832.124
• Online since: November 2013
• Authors: Sharipah Nadzirah, Uda Hashim
• Keywords: ss-DNA, Surface Modification, Thin Film, Titanium Dioxide (TiO₂)

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