Smart ring can warn of explosives and biological attacks

Scientists have developed a smart ring that can detect invisible threats to the wearer, scanning for explosives and nerve-agents that may be present in vapour or liquid form.

The technology is designed to be affordable and portable, to provide rapid alerts of any possible security threats nearby.

Tests on the device so far have revealed it’s highly sensitive to a number of hazardous chemicals, and the researcher say it could soon prove useful in defense and security environments.

Scientists have developed a smart ring that can detect invisible threats to the wearer, scanning for explosives and nerve-agents that may be present in vapour or liquid form. The technology is designed to be affordable and portable

Scientists have developed a smart ring that can detect invisible threats to the wearer, scanning for explosives and nerve-agents that may be present in vapour or liquid form. The technology is designed to be affordable and portable

HOW DEADLY NERVE AGENTS WORK 

Nerve agents such as sarin and VX fall in the Organophosphates (OPs) family, and block the activity of AChE (acetylcholinesterase), preventing the muscles from relaxing.

This can lead to paralysis, and even death.

Along with sarin and VX nerve agents, several pesticides are known to have this effect, according to research from the Countermeasures Against Chemical Threats (CounterACT) project from the National Institutes of Health.

Antidotes to organophosphates exposure rely on breaking the bond between the AchE and the OP.

This will allow the enzyme to reactivate.

But, current countermeasures work too slowly to be effective, and are not practical for large-scale exposure.

The new ring, developed by researchers at the University of California, San Diego, contains an electrochemical sensor cap and a circuit board.

This allows it to sniff out chemical and biological threats, and transmit the data to a smartphone or laptop.

According to the researchers, the demand for wearable sensors has been steadily on the rise in recent years, with global analyst

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