Hikaru Sakata, Hironori Sano, Teguh Handoyo, J. Kondoh
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Integration of localized surface plasmon resonance and electrochemical sensors for liquid environmental monitoring
Simultaneous measurements of several properties are important for a microfluidic system application. In this paper, electrochemical and localized surface plasmon (LSPR) sensors were integrated on an interdigital electrode (IDE) for simultaneous monitoring of impedance and refractive index of samples. First, the IDE was made and then gold nanoparticles were formed on the IDE electrodes by the thermal annealing method for the LSPR sensor. The measured results suggest that the electrical and optical properties of samples are measurable by the integrated IDE.
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