Cocaine detection by a mid-infrared waveguide integrated with a microfluidic chip.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22806146.
- Also identified by DOI 10.1039/c2lc40601b.
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Abstract
A germanium (Ge) strip waveguide on a silicon (Si) substrate is integrated with a microfluidic chip to detect cocaine in tetrachloroethylene (PCE) solutions. In the evanescent field of the waveguide, cocaine absorbs the light near 5.8 μm, which is emitted from a quantum cascade laser. This device is ideal for (bio-)chemical sensing applications.
Medical subject headings
- Cocaine
- Microfluidic Analytical Techniques
- Spectrophotometry, Infrared