No its not your NANA’s silver its NANO silver from Samsung. 
Samsung, the monster Korean manufacturing conglomerate is taking advantage of silver’s ability to inhibit bacterial growth. By using Nano technology to drop create a mist of silver ions 1/75,000th the width of a human hair Samsung has created a surface coating resistant, and supposedly deadly to a wide variety of bacteria.
The folks at Samsung swear that
the home appliances where the Silver Nano Health System is applied have gone through a series of strict testing at such international agencies as the British Allergy Foundation and the SLG Pruef-und Zertifizierungs GmbH in Germany. While the silver lining behind these high-tech appliances has been certified as effective in killing bacteria, it is also reportedly absolutely harmless to the human body.
They’ve treated air conditioner filters, the inside of refridgerators, dishwashers and even a waterless washing machine which cleans your delicate clothing with a blast of silver filtered hot air.
They call it the Silver Nano Health System. Kind of cool, you can read more about it here: