We'll go ahead and warn you: if you're hoping to purge your mind of all things science this weekend, this post isn't the one to be reading. For the rest of you knowledge seekers, Arizona State University researcher Wayne Frasch has developed a biosensing nanodevice that could possibly revolutionize health screenings and speed up that grueling airport security process. Put simply (well, as simply as possible), he discovered that the enzyme F1– ATPase can be equipped with an optical probe and "manipulated to emit a signal when it detects a single molecule of target DNA." Currently, a prototype of the DNA detector is already being worked up, but there's no word on when (or if) the device will escape the lab and hit the commercial realm. Still not geeked out? Hit the read link and hold on for dear life.

[Via Physorg]

Although it shouldn't take you by surprise to get held up a bit while going through airport security these days, a good few travelers are a bit perturbed by the Clear's problems with metal-infused footwear. Passenger's that spend more time cruising the friendly skies than motoring around in their own vehicle have the option to submit to a federal background check and cough up $100 in order to pass through newly-installed biometric scanners at certain airports such as Orlando International and New York's Kennedy Airport. However, even the snazzy scanners can't distinguish between benign and harmful metals, so customers who thought they'd save themselves the inconvenience of kicking off their kicks are still being forced to remove their shoes if even the slightest hint of metal is detected. Although the shoe scanners still won't be "broadly used" until they receive further TSA approval, Verified Identity Pass senior vice president Shawn Dagg simply suggested that "he hopes customers will learn to wear shoes without metal." We're sure that's exactly the answer these disgruntled customers were looking for, Mr. Dagg.