Terahertz microchip for illicit drug detection

  • Lu J
  • Chen L
  • Kao T
 et al. 
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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

Author-supplied keywords

  • Biochip
  • Far-infrared
  • Microchip
  • Millimeter wave
  • Photonic transmitter
  • Submillimeter wave
  • Terahertz (THz)

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