Terahertz microchip for illicit drug detection

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Abstract

To accurately detect minute amounts of substances without disturbing the surroundings of target molecules has been a major goal in bioanalytical technology. Here by integrating an optoelectronic terahertz (THz) microsource into a glass-substrated microchip within the near-field distance, we demonstrate a compact, label-free, noninvasive, and sensitive microbiosensing system with low-power consumption. The demonstrated THz microchip allows us to locally specify various illicit drug powders with weights of nanograms, with a promising future for rapid identification of the static status or even the dynamics of various biomolecules. © 2006 IEEE.

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Lu, J. Y., Chen, L. J., Kao, T. F., Chang, H. H., Chen, H. W., Liu, A. S., … Sun, C. K. (2006). Terahertz microchip for illicit drug detection. IEEE Photonics Technology Letters, 18(21), 2254–2256. https://doi.org/10.1109/LPT.2006.883285

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