Certain chemical compounds known as organophosphates are used as the foundation for many herbicides, insecticides, and nerve agents. Even though they are widely employed, these biochemicals carry dangerous side effects when exposed directly to humans.
Researchers have recently developed a fast and efficient way to detect the existence of these deadly compounds. Referred to as a “lab-on-a-glove,” a disposable glove decked out with a flexible sensor may be able to reveal and warn the wearer of nearby harmful substances.
Organophosphate nerve agents, in particular, are highly toxic to humans. This form of the biochemical prevents the normal function of a person’s nervous system. Organophosphate pesticides, on the other hand, aren’t as deadly but can still cause illness to those directly exposed, according to the U.S. Centers for Disease Control and Prevention.
The sensor-filled wearable glove uses the thumb finger to detect any residue from nerve agents, the index finger to detect any immobilized enzymes, and the remaining fingers to carry out additional electrochemical biosensing.
In order to properly use the device, the user first swipes their thumb on the surface scheduled for testing. After the nerve agent results are in, the user touches the thumb to each additional digit for every finger’s unique processing. Stretchable inks running along the glove prints each result on the appropriate finger.
To receive real-time results, a Bluetooth device found on the back of the glove sends data to the wearer’s smartphone. After field testing this device, the glove successfully identified organophosphate pesticides such as methyl paraoxon and methyl parathion, on glass, wood, plastic surfaces, and produce.
Researchers hope to further this technology for use in security and food safety industries.
The full details of this research can be found in the journal ACS Sensors.