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Creators/Authors contains: "Hong, Ikjun"

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  1. ; ; ; (, Optics Express)
    Efficient transportation and delivery of analytes to the surface of optical sensors are crucial for overcoming limitations in diffusion-limited transport and analyte sensing. In this study, we propose a novel approach that combines metasurface optics with optofluidics-enabled active transport of extracellular vesicles (EVs). By leveraging this combination, we show that we can rapidly capture EVs and detect their adsorption through a color change generated by a specially designed optical metasurface that produces structural colors. Our results demonstrate that the integration of optofluidics and metasurface optics enables spectrometer-less and label-free colorimetric read-out for EV concentrations as low as 107EVs/ml, achieved within a short incubation time of two minutes. 
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  2. ; ; ; ; (, ACS Photonics)
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  3. ; ; ; ; ; ; ; ; ; ; et al (, Nano Letters)
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