Rapid detection of drugs of abuse in saliva using surface enhanced Raman spectroscopy and microfluidics.

@article{Andreou2013RapidDO,
  title={Rapid detection of drugs of abuse in saliva using surface enhanced Raman spectroscopy and microfluidics.},
  author={Chrysafis Andreou and Mehran R Hoonejani and Meysam R Barmi and Martin Moskovits and Carl D Meinhart},
  journal={ACS nano},
  year={2013},
  volume={7 8},
  pages={7157-64}
}
We present a microfluidic device that detects trace concentrations of drugs of abuse in saliva within minutes using surface-enhanced Raman spectroscopy (SERS). Its operation is demonstrated using methamphetamine. The detection scheme exploits concentration gradients of chemicals, fostered by the laminar flow in the device, to control the interactions… CONTINUE READING