Abstract
A reliable alcohol biosensor has the potential to increase awareness of problematic drinking and so reduce alcohol-related morbidity and mortality. At the present time, transdermal alcohol monitors—which measure alcohol consumption by assessing the alcohol content of sweat and insensible perspiration—represent the technology that offers the greatest promise for a wearable alcohol biosensor. Transdermal alcohol sensors are currently used mainly as abstinence monitors, in which capacity they have proven useful within the criminal justice system, alcohol intervention programs, and also within some basic alcohol research. However, the relationship between transdermal alcohol concentration (TAC), as measured by these devices, and continuous blood alcohol concentration (BAC) is complex, likely varying based on individual and also contextual factors and also involving some degree of lag. We provide a brief review of the human subjects studies conducted to date examining the BAC-TAC relationship, provide directions for future research, and also consider future applications of transdermal alcohol monitors.
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