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We present the optimum operating conditions for THz scattering-type near-field microscopes using a self-consistent quasi-static line dipole image method. We show that the optimum incident angle of THz wave depends on the complex refractive index of substrate, and significantly enhance the near-field scattering signal. We also find that forward-scattering signal is preferred to back-scattering signal...
We propose mono-, di-, or tri-probe functionalized water-soluble gold nanoparticles (AuNPs) (~2 nm) based on our aqueous-phase serial solid-phase monofunctionalization (monof-) approach. They exhibit both electrical and optical sensing capabilities when specifically coupled with distinctive one- or diametric-functionality. Using ferrocene redox derivative for electrical detection scheme, the monof-,...
Microarray is one of the most powerful DNA detection systems with multiplexing and high throughput capability. However, the current application of microarray is limited to the preliminary genomic screening of biological samples despite of its excellent potentials for other applications, such as biosensing. This paper addresses microarray's possibilities as sensing device by investigating its limit...
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