Topical review on monitoring tetrahydrocannabinol in breath.

@article{Mirzaei2019TopicalRO,
  title={Topical review on monitoring tetrahydrocannabinol in breath.},
  author={Hamed Mirzaei and Allen O'brien and Nishat Tasnim and Adithya Ravishankara and Hamed Tahmooressi and Mina Hoorfar},
  journal={Journal of breath research},
  year={2019}
}
Legalization of cannabis for recreational use has compelled governments to seek new tools to accurately monitor Δ9-tetrahydrocannabinol (Δ9-THC) and understand its effect on impairment. Various methods have been employed to measure Δ9-THC, and its respective metabolites, in different biological matrices. Recently, breath analysis has gained interest as a non-invasive method for detection of chemicals that are either produced as part of biological processes or are absorbed from the environment… 
3 Citations
Emerging trends in point-of-care sensors for illicit drugs analysis.
TLDR
The sensitivity and selectivity of various sensing modalities along with evolving parameters such as real-time monitoring and measurement via a smart user interface and guided insights and directions for future research are highlighted.
A comprehensive breath test that confirms recent use of inhaled cannabis within the impairment window
TLDR
An inhaled cannabis recent use test that correlates with impairment and helps protect against wrongful prosecution and workplace discrimination is described.
Fabrication of SnO2 Composite Nanofiber-Based Gas Sensor Using the Electrospinning Method for Tetrahydrocannabinol (THC) Detection
TLDR
It is shown that the proposed metal oxide semiconductor sensor for the detection of volatile organic compounds (VOCs) outperforms the commercial sensor when it is embedded inside the channel and compared with that of a commercial sensor.

References

SHOWING 1-10 OF 75 REFERENCES
Detection of ∆9-tetrahydrocannabinol in exhaled breath after cannabis smoking and comparison with oral fluid
Exhaled breath is commonly used in alcohol testing, but has been recently demonstrated by scientists from Sweden, Germany, Belgium, Switzerland, and the United States to contain a large number of
The detection of Δ9-tetrahydrocannabinol in the breath of human subjects
Δ 9 -Tetrahydrocannabinol (THC) was detected in breath of human subjects by gas liquid chromatography/mass spectrometry (GC/MS) up to twelve minutes after smoking marijuana. A number of adsorbents
Determination of Cannabinoid Vapor Pressures to Aid in Vapor Phase Detection of Intoxication.
TLDR
The vapor pressures of two important cannabinoids, cannabidiol (CBD) and Δ9-tetrahydrocannabinol (Δ9-THC), are presented, as well as the predicted normal boiling temperature (NBT) and the predicted critical constants (these predictions are dependent on the vapor pressure data).
Detection of drugs of abuse in exhaled breath from users following recovery from intoxication.
TLDR
This study gives further support to the possibility of developing exhaled breath into a new matrix for drugs-of-abuse testing by extending the number of analytes that are documented to be detectable in breath.
Excretion of Δ9-Tetrahydrocannabinol in Sweat
Abstract Sweat testing is a noninvasive technique for monitoring drug exposure over a 7-day period in treatment, criminal justice, and employment settings. We evaluated Δ 9 -tetrahydrocannabinol
Cannabinoids in exhaled breath following controlled administration of smoked cannabis.
TLDR
Breath may offer an alternative matrix for identifying recent driving under the influence of cannabis, but currently sensitivity is limited to a short detection window (0.5-2 h).
GC/MS and EMIT analyses for delta 9-tetrahydrocannabinol metabolites in plasma and urine of human subjects.
TLDR
In plasma, THC concentration provided the best indication of recent (less than 6 hr) smoking and in enzyme-hydrolyzed urine, 8 beta, 11-dihydroxy-THC at high concentration was identified in the earliest voidings, falling rapidly to the limit of detection before 22 hr in most subjects.
Tetrahydrocannabinol (THC) Detection using Semiconductor-enriched Single-Walled Carbon Nanotube Chemiresistors.
TLDR
It is shown that chemiresistor devices fabricated from s-SWCNT ink using dielectrophoresis can be incorporated into a hand-held breathalyzer with sensitivity toward THC generated from a bubbler containing analytical standard in ethanol and a heated sample evaporator that releases compounds from steel wool.
Review of Biologic Matrices (Urine, Blood, Hair) as Indicators of Recent or Ongoing Cannabis Use
TLDR
The cannabis influence factor was demonstrated as a better tool to interpret the concentrations of THC and its metabolites in blood in forensic cases and therefore it was proposed to assume absolute driving inability because of cannabis intoxication from a CIF ≥10.
On-site oral fluid Δ9-tetrahydrocannabinol (THC) screening after controlled smoked, vaporized, and oral cannabis administration
TLDR
Evaluated sensitivity, specificity, and efficiency of the Dräger DrugTest® 5000 [DT5000] and Alere™ DDS2 [DDS2] at various OF THC confirmatory cutoffs following controlled smoked, vaporized, and edible cannabis in frequent and occasional smokers to improve interpretation of cannabinoid OF results.
...
1
2
3
4
5
...