Self-defense

A study has demonstrated that a bacterial defense mechanism against invading viruses can be used to combat bacterial infection, opening the door to new anti-bacterial therapeutics, particularly important in the setting of rising antibiotic resistance.

​We've already seen jewelry that sends out an alert when its wearer is attacked – but they still have to push a button on it to make that happen. What if they can't reach their jewelry? Well, that's where the Smart Jewelry Bracelet comes in.

The First Sign Hair Clip, a hair clip fitted with security sensors, is designed to help deter violence against women by not only sending out a cry for help, but gathering up evidence to ensure justice is served.

This Italian triple-barrel revolver is a challenger for most unusual handgun we've seen.

Creek Stewart has built a shotgun that doubles as an all-round survival tool.

Due for release in 2011, the Palm Pistol is an easily concealed, deployed and used single-shot weapon for self defense.

Looking like an unassuming weapon from Oddjob's arsenal, the Unbreakable Umbrella is the weapon of choice for well-heeled bowler-hatted gentlemen cum ninja assassins everywhere.

The Avurt IM-5 launcher is a flashlight-sized, non-lethal self-defense device that fires pellets filled with PAVA powder at distances of up to 40 feet, burning the eyes, nose and throat of the target.