If you think about it, smart phones and their touch screens are one of the few things that are rarely (if ever) sanitized, and multiple people touch. It’s no surprise that British researchers found that mobile phones harbor 18 times more bacteria than a flush handle in a typical men’s restroom.
It should come as no surprise that new technology has found an answer to our slimy screens. Gorilla Glass has created a new antimicrobial touchscreen glass. The new glass uses an ionic silver layer to kill bacteria on contact, leaving your glass permanently disinfected.
Silver has always been known as an antimicrobial, and studies suggest it is effective at killing dangerous bacteria such as Staphylococcus aureus and Escherichia coli. https://microbewiki.kenyon.edu/index.php/Silver_as_an_Antimicrobial_Agent Hopefully we will see more of these screens incorporated into mobile phones in the future.
For cleaning your current screen, Folioweekly.com specifically warns against the use of alcohol on iPhone screens “Using cleaners with alcohol will wear down the oleophobic coating on your iPhone and iPad.” Instead, they recommend a small amount of soap and water, and maybe even a UV light if you are still concerned about sanitation. http://folioweekly.com/How-Do-I-Sanitize-My-iPhone,5434